Our Aerospace Adviser Asks Questions. Project ThunderStruck

Area_rule_unifilar_drawing.svgAnswering our Adviser’s Initial Questions

Below is an exchange between our new adviser to the project (to be announced officially soon and myself (Robert Brand). Here are his initial comments and please remember that he has not seen anything yet. Our adviser is a pilot with an aerospace engineering degree.

Our Adviser  Hi Robert, Here are a few questions and thoughts.

1. Propulsion

At a first glance you may think you don’t have a propulsion problem, because the thing is falling down.
The fact is, you do. The basic forces and their components (lift, weight, thrust and drag) are always in balance as long as the aircraft is not accelerating in any axis.

This is valid the other way around as well: The aircraft will accelerate as long as the forces are not in balance.
For your case, you need to have the capability to accelerate beyond the sound barrier.

The problem is that the parasitic drag increases exponentially as you approach M=1 and because you are going at a certain angle towards the ground, a certain component of this force, or all of it if you dive vertically, adds to your lift. Once your lift becomes greater than your weight, you will start to slow down.

If this happens before M=1, you will never reach supersonic speed. If it happens after M=! you can further accelerate, because the drag drops after transonic. Transonic is the worst place to be. I order to be supersonic, you must achieve M=1 ASAP, before the air becomes dense.

If you drop from 33km, forget it, because at 30km you can already feel the effects of atmosphere.
The first thing you need to do is apply total surface design, or coke-bottling. The total surface of your craft must be consistent, so at the place where you have wings, your fuselage must be narrower. This dictates your fuselage to be in a shape of a coke bottle. This will reduce drag significantly.

Also, center of lift on the wings changes in supersonic flight and you need to cope with that. There are two strategies, variable wings or variable centre of gravity. I have a very original idea how to solve that.

2. Stability

Any object going through a fluid tends to assume a low drag position. Sometimes this low drag position means rotating and spinning.
You can solve this problem by active control (unless you have f-16 engineers on board, forget it) or aircraft design.
I would suggest delta wings, high swept. Delta wing has an inherent autostability feature and high sweep angle to reduce drag and effect of the wings.
Accept it, your aircraft can be designed either for high speeds or low speeds, unless you have flaps or variable wing geometry.

———————

My Response

I look forward to how he views this and I will report back soon. I expect that I will have allayed most of his fears:

Firstly we are already applying the constant area rule. Even the A380 has aspects of the rule in the design. I lectured at Sydney Uni on the subject only a few weeks back. I understand the rule and some other rules to do with supersonic flight, although their effects are much less than the constant area rule.

Yes, the wings may very well be more swept back than in the image on the site. We will do drop tests to a certain the best wing shape and we have access to a wind tunnel.

The wings will be symmetrical (top and bottom)– ie zero lift. They will be therefore not an issue at supersonic speeds. The elevator will provide the “lift” with speed at lower altitudes. Yes, it will land “hot” – we may use “flaperons” ie combined flaps and ailerons. It should be noted that these are less effective as ailerons when they are biased down as flaps, but they will be bigger than needed. They will be symmetrical also. Flaperons are really ailerons  that are mixed with the flaps signal on the transmitter to bias them both “on” as flaps/ The ailerons do not work with the same efficiency when they are both biased down, but they do work. We may use separate flaps, we may not use flaps. Testing will determine the stability and best options.

Below is a video that shows how they mix the signals in the transmitter of radio controlled models to adjust the various control surfaces. This is a third party video

The spin will be counteracted by the large ailerons even in low air, the trick is to stop the spin in the first place by making the craft very symmetrical and test that aspect.

Our novel answer to controlling the need for different centres of gravity: We will have serious control of the centre of gravity in the craft and we will be able to move the batteries and electronics with a screw mechanism back and forward in the fuselage. This will keep the craft from being unstable at supersonic speeds. Once it goes back to subsonic, we will begin moving the centre of gravity back as we begin to level out the flight and slow the craft.

At slower speeds, we have air brakes that will slow the craft if needed

The supersonic spike at the front of the aircraft is used to create the shock wave with a pin point device ahead of the fuselage and ensure that the biggest part of the shock misses the wing entirely. A shock wave over the wing creates massive drag and this is why many pilots in the early days, tried to break the sound barrier and failed. The spike doubles as a VHF / UHF antenna

Three weeks ago we launched a payload mainly of wood, covered in bubblewrap for the electronics and, with the parachute deployed, it reached 400kph. For the event we will be using a Zero Pressure Balloon to get to over 40Km altitude. If the 9Kg of the payload are not enough, we will increase the weight and size of the craft. We will brake the sound barrier, but need to show it is a fully working aircraft after the dive.

In World War II bombs from high altitude aircraft regularly broke the sound barrier. We will shift the centre of gravity well forward and act like a bomb. We should be able to punch through that barrier with a lot to spare – even Felix Baumgartner broke he sound barrier for his jump altitude of 39Km. He was not very aerodynamic. We expect to terminate supersonic flight at around 31Km
Yes, transonic is a bad place. We do not intend to allow the craft to stay there! Punch through while the air is super thin and keep accelerating!

Will we make Mach 1.5? – it depends on our launch altitude. We will achieve Mach 1 – the sea level speed of sound is our target. About 1200kph.

Area_rule_unifilar_drawing.svgThere is much more, but I expect that I have answered most of your questions in this email. We will be using ITAR controlled GPS units for supersonic tracking and also we will be using radar transponders to warn other aircraft. The Jason and I will be testing a lot of aspects of the flight with drop tests from balloons. I will be launching another balloon in a week’s time.

The picture above shows the constant area rule – efficiency is gained by the cross-sectional area of the aircraft being constant along its length. The fuselage gets thinner where the wings are as there area has to be accounted for. This rule is important as aircraft get close to the sound barrier and this is why Boeing 747 aircraft were so efficient.

Note the light blue area has to be the same as the dark blue area, including the area of the wings. This id the “coke bottle” shape that our adviser mentioned

Project ThunderStruck Update

More News on Project ThunderStruck

Thanks for the support in both contributions of dollars and more importantly at this stage, getting the word out and helping with services. Tim Gagnon is a fine graphic artist from Florida and he has pledge support by offering to design the mission patch. If you have any thoughts about his skills, have a look at his website. I believe that he has done one or two before!

KSCartist.comKSCartist.com Fine Art & Graphic Design from America’s Space Coast

Spending Your Contributions

Now a little detail on how we will spend your contributions. I did say it would cost $80,000 and that was no exaggeration. For a start there is about $10,000 worth of electronics to buy and test for the final flight and that is just the TV link, the telemetry, the control system for flight, cameras, video from the balloon to see the aircraft and the release, the tracking systems for the balloon and the tracking for the aircraft, the balloon flight termination system. The balloon for the final flight will cost over US$10,000 and the helium will cost $3,000. We will have to buy 2 radar transponders to warn aircraft of our position and they cost $2,000 to $5,000 each (and are heavy too).

Every two weeks we will do a weather balloon flight to test the latest systems for Project ThunderStruck and these will cost between $1,000 and $2,000 dollars each and take up our whole weekend traveling and staying in hotels. Petrol alone costs us $300 for the trip and launching and recovering our systems. Below is a video of a launch we did in Croatia. You will see that it is very difficult and requires a lot of materials and you don’t always recover them. So far we have recovered 100% of our payloads, but one day….

The GPS tracking system will be special as ordinary systems will not work at supersonic speeds. You need a special clearance to buy these and we need 2 and they cost $6,000 each.

The airframes will be expensive and we will need two. Jason has said that since most of our antennas are internal, the airframe cannot be made from carbon fibre alone or the signals will be severely attenuated. He will also need to have sections of the fuselage and possibly parts of the wing fabricated from a material such as Kevlar.

phased circula polarised antenna - double mushroomThe picture, right, is an antenna that may be on the aircraft and shows why we must locate it inside of the airframe. It is a little fragile to leave out in a 1,800kph airstream!

 

CASA – Australia’s Civil Aviation Safety Authority

Our Civil Aviation Safety Authority will also likely want us to travel to a remote part of the country for the big event. That will probably be one of our biggest costs – transporting all that gear and setting it up in the middle of nowhere and that is not a two person activity. We will need transport and accommodation for a huge crowd of people.

I look forward to to telling you more about the technical parts of the mission in the next update for Project ThunderStruck.

Project ThunderStruck Launched

Project ThunderStruck set to Break Barriers ThunderStruck vertical

by Robert Brand

Imagine a time when a 12 year student could build a supersonic glider 2.5m / 8ft long, attach it to a huge helium or hydrogen balloon and take it to the edge of space, release it, fly it into a dive back to earth that will reach Mach 1.5 / 1,800kph / 1,120mph and land it. Well that time is now and the student is Jason Brand from Sydney Secondary College / Balmain Campus. He is in year 7 and has already broken plenty of records. Breaking the sound barrier will be another cool record. His flight will break a lot of other records too.

  • Fastest RC plane
  • Fastest glider (of any type)
  • Highest flight
  • The longest dive
  • Youngest person or RC pilot to break the sound barrier
  • there are plenty more, but who’s counting

The event will take 6 to 9 months to complete and the testing started 3 weeks ago when a non-aerodynamic payload (space chicken from Clintons Toyota) reached speeds of 400kph / 250mph with its parachute deployed. This is because the air is pretty thin up at 33.33Km or 1/3 the way to space.

Rankins Springs Free Fall UpLift-19The space chicken was a simple test and we are now happy that we can easily fly at speeds of Mach 1.5 in the very thin air high up in the stratosphere. Left is a picture of the chicken falling back to earth at 400kph. Even the parachute could not slow the payload in the thin air. It slowed down as it reached 28Kms altitude and the air got a bit thicker.

We have started fund raising as we need help to cover the enormous cost of Project ThunderStruck.

If you can offer a dollar or two (every bit counts) we will love you. If you are rich and wish to really help, there are rewards. They are called “Perks” and we have some that I hope you will love. Some of our payloads will go supersonic before the big event, but they will not be aircraft. We might even donate one of our supersonic payloads to a generous contributor.

CLICK HERE TO DONATE with PAYPAL or on the Project ThunderStruck image at top right of the website
Below is the story from the FundRazr Website

Have a Credit or Debit card. We will have a contribution link in a couple of days!

Project ThunderStruck set to Inspire Kids Worldwide.

Fighter jets break the sound barrier every day, but this radio controlled aircraft has no engine, weighs 9Kg (20lbs), is 2.5m (8 ft) long. So the pilot must be a really experience Top Gun to fly this plane at 1,800kph (1,120mph) Well, no. His name is Jason brand and he
is 12 years old
. Can he make this a reality? Yes, he has the experience and the skills. More on that later.

So Why is this Important?

This is probably one of the most important projects that you can support. This is beyond the ability of almost every adult on the
planet, yet a 12 year old student is set to inspire kids around the world with a daring project that is pure STEM – Science Technology Engineering Mathematics. It will make the seemingly impossible the domain of the young if they choose to break down the barriers imposed by themselves or others. Not only that, there is real science going on here.

Jason’s father, Robert Brand, is a well known space entrepreneur. He is designing and testing small winged re-entry vehicles. He was
discussing with Jason the testing fo the transonic phase of the re-entry, that is, the part of the flight transitioning the sound barrier. Jason proposed that he create Project ThunderStruck and that his father asist with the project management.

The Cost

That is the hard part. We will have to do lots of testing and even the record breaking event will cost about $30,000 alone. The total cost will be $80,000 but we will only need $20,000 from crowd funding. If we make more, it will make our fundraising from sponsors a lot easier. Sponsors tend to come on board later, once they see progress.

Your Assistance is Essential

Your help now is essential. It gets us started immediately. Flying balloons to the edge of space for testing is an expensive exercise and we have a 7 hour drive each way to get into areas of low air traffic away from the major trunk routes. We also have to buy a lot of radio systems to allow remote control from the ground when the glider is up to 100kms distance.

Who is Jason Brand?

He is a 12 y/o student from Sydney Secondary College, Balmain Campus in Sydney, Australia.

He carried out his first High Altitude Balloon (HAB) project at age 9 and was so inspired that he sat for his amateur radio license at 9 years old. Since then he has launched a total of 19 HAB flights and recovered all 19. Some flights were in Croatia where mountains, swamps and landmines are risks not seen in Australia. He is also the Student Representative for Team Stellar – A Google Lunar X-Prize team attempting to get a rover onto the moon.

J20130414 Jason Brand on the Fuzzy Logic Science Showason appears on Radio and TV regularly and the picture right shows him talking about HAB flights on Canberra’s Fuzzy Logic Science Show in 2013. He is also a member of the Australian Air League, Riverwood Squadron. He plans to solo on his 15th birthday.

His father Robert Brand is an innovator in creating low cost solutions for spaceflight. He speaks regularly at international conferences, is a regular guest lecturer on aerospace at Sydney University, writes about aerospace and takes a very “hands on” approach to space. He supports Jason’s project fully.

How will ThunderStruck work?

The same way that the first pilots broke the sound barrier: in a steep dive. The problem is that since there is no engine and the biggest issue is air resistance, Jason will launch the aircraft from over 40km or nearly half way to space! He will get it there on a high altitude balloon. There the air is very thin. A fraction of one percent of the air at sea level. During the dive, the craft will accelerate to well over Mach 1 and less than Mach 2 and will need to be controllable by its normal control surfaces to pass as an aircraft. As the air thickens at low altitudes, the craft will slow and with the application of air brakes will slow and level off for normal flight to the ground.

The Technology

We will have a camera in the nose of the aircraft and it will transmit TV images to the pilot on the ground. Jason will be either in a darkened room with a monitor or wearing goggles allowing him to see the camera. This provides what is known as First-person Point of View (FPV). The aircrafts instruments will be overlaid on the video signal. This is known as “On Screen Display” or OSD. Below is a view typical of what will be seen by Jason as he lands the craft.

osdThe video signal must travel over 100kms to be assured of the craft being in the radius of the equipment. Similarly we must send commands to the control surfaces of the radio controlled aircraft. Again this must work at distance over 100kms. The craft has ailerons, elevators and rudder as well as airbreaks and other systems that need to be controlled. We will use a 10 channel system to ensure that we have full control of every aspect of the craft.

We will have to buy a $5,000 GPS unit capable of sampling at what is essentially the speed of a missile. These are highly restricted items, but essential. We will record the speed with both this unit and radar. The unit will record to an SD card and also send back telemetry every second. It is essential to knowing the speed during the flight rather than waiting until after the event. We will also need a radar responder to allow other aircraft and air traffic controllers to know where our craft is at any time.

The Big Event

We can expect global TV News coverage of the event and many records to be broken. The day will start by filling a large Zero Pressure Balloon like the one pictured below.

OLYMPUS DIGITAL CAMERAThe balloon will carry the aircrafy to over 40km where it will be released and go into a steep dive and break the sound barrier. As the air thickens, the speed will slow and the craft will be pulled out of the dive and levelled off to drop speed. The aircraft will eventually land and data and video records will be recovered. We will already know the top speed, but there is nothing like solid data rather than  radio telemetry that may miss the odd data packet.

There will be opportunities to attend, but it is likely to be in a rather remote part of the state. The flight will be broadcast over the Internet and the opportunity to track and follow the flight will be available to all. All up the opportunity to be involved is high and the science and inspiration will be out of this world. Project ThunderStruck is set to thrill.

Visit our wotzup.com website for more space and balloon stories.

We are bringing our Projectthunderstruck.org site early in October.

UpLift-2

Australian Student (12) to Attempt Breaking the Sound Barrier with Radio Controlled Aircraft

UpLift-2Jason Brand to Attempt Breaking the Sound Barrier with Model Aircraft.

In the next 12 months, Jason Brand will attempt to break the sound barrier. He is a 12 year old student from Sydney Secondary College, Balmain Campus and is a regular kid with a passion for aerospace. Not surprising as his father, Robert Brand, is one of Australia’s leading space entrepreneurs.

The event will be a huge media attraction as nothing like this has been attempted before, especially by a 12 year old Student. It will consist of a zero pressure balloon ride by the aircraft to nearly 40Km altitude. The aircraft will be released and immediately be placed into a vertical dive as Jason pilots the vehicle by remote control. He will be wearing goggles that will allow him to see the view from the cockpit and all the important instrumentation. This Point Of View (POV) feed and possibly a HD feed will be available for a live feed for the media during the event. HD TV images will be recorded in memory aboard the aircraft.

pressure wavesJason has been studying supersonic wind flow over the control surfaces and the the loss of laminar flow away from control surfaces. Add to this the drag of shock waves. He and his father have come up with a design that has minimal laminar flow issues and low drag to ensure that Jason can maintain control as the aircraft exceeds the sound barrier by as much as possible. He has also been studying Mcr and Mdr and P and a whole lot of other important factors . Look them up! Yes the flight will be similar to the original sound barrier flights by pilots such as Chuck Yeager.

The flight will involve shifting the centre of gravity during the super sonic and sub sonic flight stages and retracting the supersonic spike during normal flight. The craft will be using an ITAR controlled GPS system that is capable of operating at well over the speed of sound. Video feeds will be available for the press in real time and HD video will be stored on the aircraft in memory as will be the GPS sampling.

UpLift-1 Launch with Jason BrandJason’s interest in “what’s up there” dates back to 2009 when he was 9 years old. His father decided to launch a weather balloon to the stratosphere and recover the payload and the camera. It was a great success. They launched the first balloon from the sleepy town of Rankin Springs in central NSW. They chased the balloon with radio tracking and the flight progress, with Google terrain was broadcast on the Internet during the flight. The jet stream was slow that day and they were sitting in the shade having lunch when the balloon burst at 24Km and the payload started its decent. After a few lessons in getting to the right field through a maze of gates and fences, they recovered their first payload. Today, Jason, along with his father are veterans of 18 flights and 18 recoveries. a 100% record and they intend keeping that way through science. The picture above is Jason picking up a video camera from a payload while the still camera just happened to snap his picture. After the first balloon flight he got his Foundation Amateur Radio Operators License (HAM) by doing a course at the Waverley Amateur Radio Club. He is now passionate about radio systems in regards to assisting with his goals in Aerospace.

IMG_1883His love balloon flights and model aircraft has grown. He recently designed and built a 1.5 horsepower tricopter which can lift 2Kg of load. He has also traveled to Croatia at the invitation of Team Stellar. Jason is the Australian Student Representative for Team Stellar – a Team in the Google Lunar X-Prize. He and his father (Head of Communications, Tracking and Data for Team Stellar) were invited to Croatia to launch Student payloads into the stratosphere – a difficult task in such a small country where the need to keep the balloon and payload within the borders is paramount. Add to that the large amount of forested land, swamps and mountains; not to mention the massive problem of leftover land mines from the recent wars with bordering countries. The flights were using the largest balloons and achieved a height of over 30Kms, one reaching 33.33km – one third of the way to space.

Jason spoke in front of many scientists, teachers  and engineers over recent years including Teachers at Science Week in Albury, Engineers Australia and the Skeptics group in Croatia. He has appeared on TV in Croatia and Australia. Below is a recent interview of a major balloon event in Croatia where Jason was a key person in the project.

The attempt will cost $60,000 and he is seeking sponsorship. One Sydney University has offered assistance and resources such as wind tunnel testing. The attempt will be with CASA approval and may be required to be located away from most air traffic in remote areas of Australia.

If you are interested in sponsoring the event please contact via homepc@rbrand.com

Media Contact: Robert Brand (International) +61 448 881 101   (national) 0448 881 101

Pico Balloon Update

Andy Balloon altitude over AustraliaPico Balloon Departs Australia

Andy’s Pico Balloon Update: It has now passed over the bottom of Fraser Island in SE Queensland and out to sea.

Next stop may be South America in a week’s time. We do not expect to hear from the balloon until then, but it may pass over New Zealand or Tonga.

At right is the altitude details from the spacenear.us website. The balloon took about 2 hours to get to just over 8km altitude and because it is a foil balloon and cannot expand, it then sits at that altitude day and night. You can see a small dip as the sun sets until it warms up again the next day. It then rises as the balloon skin expands in the heat. Air pressure will also cause the balloon to rise or fall as will vertical air currents.

The balloon will change APRS frequencies as it crosses different longitudes but the RTTY frequencies stay standard across the world.

Below is the last track of the balloon crossing the coast today.

Andy says that the payload weighs 13 grams or less than half an ounce and consists of:

  • APRS and RTTY transmitters (10mW)
  • A GPS receiver
  • rechargeable batteries
  • solar panel
  • Insulation

The gas is helium and the metal foil balloon should not deteriorate much in a week. The gas also does not leak out very much from a foil balloon compared to a latex or other non-metal balloon.

Note that because the balloon is so light, it is classified as a small balloon and does not need to involve CASA to be able to fly such balloons.

Andy Balloon departing Australia

UpLift-16 Grazing Property near Michelago

Australians Applying to CASA for a HAB Flight

Are you Australian and want to fly a High Altitude Balloon (HAB) in Australia?

CASA  Civil Aviation Safety Authority

Although I have been adding archives back to the site, there is one key post that I was unable to restore – the all important letter to CASA for the launch with details of the flight, so i will ad this one to the site. It was for UpLift-16 launched only 2 months ago for Science Week.

First some background: There is a real problem with the rules for releasing balloons in Australia. Simply put, there is a mistake in the regulations for light balloons. It says a “Light” balloon cannot every be more than 2m (about 6ft)  at any altitude. Of course that is nearly impossible, especially when lifting heavy payloads in the light balloon category. We launch up to 2.5kg payloads so most missions fit this profile.

You will need to contact CASA with a request – simply call and ask for a contact in your state.

Second you need to detail your flight and include predictions for the flight. There are websites that will give predictions, but since these are good for only 24 hours prior to launch, you need to give an estimate based on the average for the days seen. It is important that you give CASA plenty of time to process the application. Why? Because you may be asked to make changes. This is especially for first time flights. I had 3 delays in getting my first application through the system. I suggest that you allow 2 weeks minimum. If your application is okay, it is actually a requirement that CASA process the application within 2 days and issue the NOTAM (notice to Air Men – pilots) if there are no problems with the application.

This is the sort of letter required:

——————————————————————————

Please find below a request for a balloon flight that is a little different from our normal flights. This is from Albury, 5.42km NNW of the airport. If further distance is required, we can arrange that. Jason and I are traveling to Albury to assist in their mentoring for science students over 3 days. Jason (11) and in Year 6 will be giving 18 x 30 minutes science lessons to classes up to Year 8 over a 3 day period and we intend to launch a balloon with tracking as part of the mentoring sessions.

Regards, Robert Brand

1 The name, address and telephone number of the person who will release the balloon: Robert Brand, xx xxx xxx xxxxxxx xxxx NSW 2xxx  Phone: xxxxxxxxxx

2 The date and time the release is to begin 7am 15th August 2013

3 Where it is to be carried out Elizabeth Mitchell Drive and Ettamogah Road Albury NSW  Lat: -36.0267  Long: 146.9876

4 The estimated size and mass of the balloon’s payload: 10cm high x 5cm wide x 5cm deep of bubble wrap. The mass of the payload 70g.

5 If more than 1 balloon is to be released at a time, how many balloons are to be released at the time Only one.

6 The balloon will have a very light weight 4 layer bubble wrap protection for the extremely light weight electronics. Cut down is not included at this point and the balloon expansion is not likely to be more than 2m before it exits normal air traffic altitudes. The balloon will only carry enough helium to lift itself and the payload at a reasonable rate. It is a 350 gram Totex Balloon. Tracking is by HAM radio APRS and can be followed on the Internet during the flight. We will be in good phone coverage during the flight. Tracking will begin before launch.

7 The Balloon will likely not burst until well out to sea over 400km east of the coast and is expected to follow a line of slightly below east (by about 10 degrees and slowly increasing to just above east (10 degrees after it has left the coast. It is expected to be out of controlled air space within 50km of launch (30 minutes).

8 It is part of the Science celebrations in Albury for school students.

Your help in this matter is truly appreciated.
——————————————————————————

UpLift-16 Grazing Property near MichelagoNote, in the above letter there is a comment that the balloon will not be over 2m – this was simply because for this flight, I did not want the additional weight of a radar reflector. A simple radar reflector may be required for most balloon flights in Australia.

Also not that the ability to cut down a heavy payload may also be needed – either by CASA or to ensure that you can recover your payload before it gets into country difficult for recovery. Also note that our balloon had some previous damage from Ultra Violet exposure and burst earlier than expected. It came down south of Canberra and the electronics has been retrieved from a grazing property just east of the NSW village of Michalago.

My good friend, Rod Taylor, host of Canberra’s FuzzyLogic Science Show went down and retrieved the payload. He also interviewed me for the show the following Sunday. I will provide a link in the near future. That is Rod below with the payload.

Rod Taylor with the UpLift-16 balloon and Payload at Michelago NSW

The CASA response is below:

——————————————————————————

Hi, Robert . . .

Airservices Australia require you to telephone the Albury Air Traffic Control Tower (ATC) on the day of launch to provide advance notice of a proposed launch time, and again at that time for approval to launch. The telephone number is (02) xxxx xxxx. No launch is to take place unless contact with ATC is made and approval provided.

The following NOTAMs have been issued in relation to your proposed launch.

ALBURY (YMAY)                                             C114/13

MET BALLOON RELEASE BRG 010 MAG 2.7NM FM VOR

BALLOON WILL TRACK GENERALLY EAST. FOR MORE INFO CTC xxxx xxx xxx

SFC TO UNL

FROM 08 142110 TO 08 150100

 

MELBOURNE FIR (YMMM)                                     C4868/13

MET BALLOON RELEASE BRG 010 MAG 2.7NM FM YMAY VOR

BALLOON WILL TRACK GENERALLY EAST. FOR MORE INFO CTC xxxx xxx xxx

SFC TO UNL

FROM 08 142110 TO 08 150100

Regards, xxxx xxxxxx

UpLift-1 Launch (Archives)

UpLift-1 Takeoff 28th Dec 2011.

UpLift-1 launch weatherBefore we even left home we needed a massive list to make sure that we did not leave anything behind. After all, a 600km / 400 mile trip for nothing would not be a lot of fun. It was a huge list for such a small balloon and payload. It included the balloon, parachute, payload, helium, spare balloon, test equipment, hoses, cameras, tripod, 2-way radios, tracking radios, decoders, computer, USB cables, mobile phones, car chargers and much, much more. But this is not about that story, this is launch day! We traveled to West Wyalong in NSW (Australia) and spent the night in a great little hotel ready for an early morning departure. We still had 100km / 60 miles to drive to the launch site. The first thing was to check the weather. We had already looked at a long distance forecast before setting the date as the Civil Aviation Safety Authority (CASA) in Australia have to issue an alert to pilots for our balloon. CASA have been wonderful UpLift-1 Launch site with Jason Brand age 9and amazingly helpful. A peek out the door reveals a perfect day for a balloon flight. The photo on right shot outside my hotel room reveals a brilliant day with little wind early in the morning. We packed the car and headed to Rankins Springs near Goolgowi. I had fallen in love with this little town in the middle of nowhere. With about 50 people living in town, it was just a speck on the map at the intersecting of some sealed main roads. What struck me was that it was a place that people cared about. The public places were clean and the grass cut, perfect for preparing a balloon flight.

We found a clear grassed area next to an old Railway water tank used for filling steam engines. The contrast was great – the old and the new. This story is going to be a bit instructive so lots and lots of pictures. First I had my son Jason (9) laidUpLift-1 fill - Latex Gloves out the clean plastic sheet for the filling operation. We placed items in the corner in case a breeze kicked up the corners and destroyed the balloon. We also used Latex gloves to stop acids and other oils from transferring from our hands to the balloon and potentially causing an early failure of the balloon when the UV and other chemicals in the air act on it. We could also have used clean cotton gloves. The problem there was two fold. Sweat from our hands filled the gloves and needed to be changed occasionally to prevent and drops from landing on the balloon. The second problem was that every time we wanted to use duct tape, our gloves stuck very well to the tape! That is me on the left taping the hose to the balloon to protect it and getting the gloves stuck to the tape. There were cable ties under the tape and I used the tape to protect the balloon from sharp edges. The cable ties held the balloon to the flexible PVC tube. I also had the other end of the tube over the balloon fill regulator on the helium tank. That was just sealed with duct tape.

It was then time to prepare the payload. I had decided to block off one of the port holes for the video camera as I wanted this balloon to rise quickly. I was also going to overfill the balloon above specifications to ensure that it would explode a bit earlier than normal. All precautions for a first flight. While we were preparing for the flight, Wally, one of the locals came by on his ride-on mower and remembered me calling in at the petrol / gas station a month earlier. He was excited that we had chosen his town for the launch and APRS Tracker being wrapped in bubble wrapwent off to find the kids in town so that they could join in with all the excitement. Wally was the unofficial “mayor” of the town! A lovely character that obviously cared about kids. The photo on the right shows me preparing the GPS transmitter (Amateur Radio APRS). I am wrapping it in bubble wrap as a thermal insulator to protect it from the cold at the outside air temperature at times during the flight will be between -40 (-40F) and -50C (-58F) or possibly even lower. The capsule is also made from Polystyrene so that too will provide some protection from the cold, but with openings for the camera, there will be some cold air entering the capsule. Care was taken to ensure the dipole antenna (the two gold wires) was mounted vertically in the capsule in the correct place and the small GPS receiver was on top so that it would get a strong signal from the GPS satellites orbiting the earth. The balloon was on a 10m (30ft) cord so that the antenna had no chance of puncturing the balloon. The final benefit was that the capsule would never land upside down so the GPS receiver would always be able to receive satellite signals and report its position once on the ground. Lots to consider. The batteries were also the best that we could buy. Failure was not an option and the cold can kill batteries. We also wanted UpLift-1 Tracker competethe transmitter to last for as long as it took to recover the balloon. The unit was switched on and the receiver in my car was used to checked it was operational and all systems working. The unit reported position, altitude, atmospheric pressure, payload temperature and battery voltage. All parameters where checked and normal. APRS normally will allow you to see the track on the Internet, but we were too far away from any receivers to register. That would only happen when the flight was high enough for the distant receivers to “see” the balloon – once it was high enough to overcome the radio shadow caused by the curvature of the earth, allowing “line of sight” radio signals to be heard. Similarly when we landed, we would lose the signal close to the ground. We were going to rely on the receiver in our car to pick up the transmitter signals and read the location. This would be super important in a couple of hour. More on that later. The photo at right show the transmitter with one layer of bubble wrap. Two more were added with the GPS receiver wrapped to the top – above the side that you can see the unit with care taken to get it the right way around.

UpLift-1 CapsuleThe camera batteries were charged the night before and the camera then required special care. We had it in a sealed box with desiccant overnight to ensure that there was as little moisture as possible in the camera. This would otherwise cause condensation during the flight and fog the images. It was inserted quickly into the housing and the almost closed housing was flushed with helium from the filler hose. This ensured that water in the air was removed and the housing was sealed. The camera was turned on and set to commence taking photographs – the counter on the front began incrementing every 30 seconds. Both the camera and the transmitter were mounted in the capsule. The picture shows the camera in place secured with blocks of polystyrene  and the transmitter in place with the GPS receiver at the top. The payload bay was covered and sealed with duct tape and the capsule was ready to fly. All that waited was to fill the balloon.

UpLift-1 Balloon FillWe had brought a large bed sheet to hold over the balloon in case the wind was too strong for a simple fill. The wind was light and we did not need this, but if we had we would have asked volunteers to hold each corner down while we filled the balloon. The balloon fill was simple, but we needed to measure the diameter to get the fill right. If we under filled the balloon then it might never burst or even rise fast enough and drift long distances before popping. Either way I had made a decision to lighten the payload UpLift-1 measuring the diameterby leaving out the video camera and to overfill the balloon slightly. It was, from the manufacturer’s specifications meant to be 1.2m (3.937ft) in diameter.  I was going to fill it to 1.35m (4.43ft). Since the day was sunny, it was easy to accurately measure the diameter. We simply used a tape measure across the centre of the shadow – perpendicular to the rising sun. This meant that any stretch of the shadow from the angle of the sun would not affect the measurement. In the picture at left you can see that the sun is behind me and Jason is in the right place. The local that was helping just needed to move the measure up closer to the camera to get the final measurement (the photo was a few seconds early). We had the right diameter now and were ready to remove the hose and secure the payload. The helium tank valve needs to be shut off at this point in case the hose gets pulled and the tank either topples or adds more helium to the balloon. If the tank falls, then you could damage the regulator.

This next operation was the most difficult part of the procedureUpLift-1 Securing the neck and the payload. We had already wrapped a cable tie in duct tape to lower the chance of tearing the balloon when inserted. it would secure the nylon cord that secures the parachute and payload. First though, we needed to cut away the cable ties securing the balloon to the hose – all without cutting the balloon. The protective duct tape was peeled away and side cutters were used to sever the heads of the cable ties. This kept sharp edges away from the balloon. That is me on the right cutting the cable ties away (sorry no close-ups). Once the hose is removed then the balloon needs to be sealed and secured. I have no photos of this but the fill tube of the balloon is folded once and then a second time (4 folds thick). The cable tie with duct tape that was prepared earlier was inserted in the middle of the bottom folds ready to secure the payload. I then secured the balloon and and its UpLift-1 ready to launch with help from the locals at Rankins Springsgas with three cable ties above that making them tight around the fill tube. It must be tight to keep the gas in during the flight, especially as the outside pressure gets down to a few percent of sea level and the inside pressure remains the same. I cut the loose ends of the cable ties and used duct tape to keep them from touching the balloon. The cable tie that secured the payload was looped and the payload tied to the balloon. Again duct tape was used to secure the knot holding the payload to the balloon. Nothing was left to chance. The knot used was a bowline and few half hitches – sufficient if you have the duct tape to stop them unraveling. We were ready to launch. The local mission control countdown team were assembled (all but one shy kid and a few adults) and provided the all essential countdown – that’s Wally in he green/yellow safety shirt.

UpLift-1 Launch with Jason BrandIt was a great moment. Rankins Springs’ first near space mission. The countdown proceeded with the kids leading the chant. At zero, my son Jason released the balloon and it was away. Note the old steam engine water tank behind Jason – the old and the new. At about 270 metres the distant APRS receivers saw the balloon’s transmissions and we breathed a sigh of relief that we would be able to track and recover the balloon. We saw the updates every 20 seconds on our smart phones with all the details of the flight. We watched as the balloon stayed in clear view right up to 5km. We kept losing site of the tiny white dot, but the odd reflective glint from the shiny black duct tape brought our eyes back to the tiny 1.35m (4.5ft) white dot up in the clear blue skies of central NSW.  It should be noted, that none of these photos have been altered. They are directly from a number of cameras. The colours have not been corrected! The final job was to pack the car and chase the balloon.

It was serendipity that the first photo snapped by the payload camera at around 270m (900ft) was of the town itself. A wonderful memento of the occasion.

Below is the photo from Rankins Springs. You can click on most of the photos above and below to see a large version of the image (requires that you click through an intermediate page). I have uploaded the image of the town in the highest format possible.

UpLift-1 Rankins Springs 60 seconds after launch

60 seconds after release (below). This photo looking east above Rankins Springs: