UpLift-19 continues our incredible success in launching and recovering payloads. That is 19 launches in the UpLift series and 19 recoveries. UpLift-19 was a bit of a record breaker for us in that it is the smallest of our balloons to reach 1/3 the way to space. Yes, that is right, 1/3 the way to space with a 1.25 kilogram payload. So not quite a space chicken, but what is in a few words said our customer.That is 2.75lbs for those few countries still using outdated measurements systems. I think that there are three left out of step with the world! (I do like to have a gentle dig at my US friends). Oh yeh – our first chicken too.
We managed to reach exactly the same height with a 3Kg balloon that we launched in Croatia, but that was carrying 2.5Kgs of payload. So what else was so special about the flight. Well, we cracked the best method of doing photography and have our clearest and most colourful shots ever taken from a balloon flight! It is hard to say what we like best about the flight, but it was a flight that we never thought would get of the ground. We had to launch in 40kph winds. Errhhh, that is 25mph for my non metric friends. That is 22 knots and please note that knots are acceptable in the metric world as they are not imperial measurements, but linked closely with dividing up the world into useable chunks – from the old sailing days.
The flight was commissioned by Clinton Toyota and we carried 3 cameras and 2 trackers and some science experiments. We used our Spot3 tracking for the commercial requirements and provided a secondary private payload where we added an APRS tracker and some experiments. The APRS tracker gives good data above the ground where the commercial stuff is pinpointed with the SPOT3 as it will give precise coordinates when it is one the ground. We use a simple one ring gimbal to ensure that the antenna always has a view of the sky and the satellites that it uses to communicate position. For the commercial aspects, that is all that is needed – to recover the payload and cameras. The APRS invariably stops communicating anything up to 1km from the ground, depending on how close it lands to a HAM radio APRS receiver. We launched from Rankins Springs, NSW – our main launch site. It gives a clear area over most of the flight with little water or little in the way of forests to get in the way. The tracking is good on APRS for all of the flight above 700m at launch. We test the radios are fully functional before letting go. I also realised after launch that my old call sign was on the balloon. That probably confused a lot of people. My fault, but I will rectify that for the next flight.
The winds were over 40kph and we could not see a way to launch until i spotted a solid line of tall trees on the other side of the sports oval. We repacked our equipment and set up in the light wind behind the trees. It worked, but that was with the wind from the north. Usually southerly winds are the problem, so we will watch carefully for weather conditions for future flights and I have a few sites around town picked out if we get caught again.
The local primary school (Rankins Springs) came out in force to hear us talk about what we were doing and a bit of fun and science. They came back for the release of the balloon. My son Jason wore his School uniform as he was representing the school for the science experiments that were being launched. He attends Sydney Secondary College, Balmain Campus.
We completed the payload frame, made from light wood (4 x 1.2m lengths) in the hotel room the night before release and it held together very well with no damage, despite a heavy landing due to the parachute getting rather twisted up and spiraling down.
This meant that we were not at the site where we thought it would land and we had about a half hour drive to reach the site once we realised the problem. In essence the balloon traveled east in the jet stream at speeds of up to 130kph and then broke into the stratosphere and stopped any horizontal movement. As it climbed into the stratophere it picked up speed and traveled to the west reaching 100kph at the point the balloon burst. That was an altitude of 33.333KM – 1/3 the way to space. As I said, this exactly matched our Croatian record where we had a 2.5Kg payload and a 3Kg balloon. The free fall saw a top speed, in the upper atmosphere where the air is thin, of 400kph. That was with a parachute and a rather non-streamlined pyramid frame. That was about 1/3 of the speed of the sound barrier at sea level. I can’t wait for future flights were we will build payloads designed to fly super fast in thin air. Watch out for our attempt to break the sound barrier with a small Radio Controlled aircraft. There will be a few records broken that day. Note in the picture (left) the bubble wrap used as an insulator for the batteries and trackers.
That is Jason holding the balloon during the fill. Notice the cotton gloves. We use these to protect the balloon or we use latex gloves, but they really make my hands too sweaty for my liking. We measured the balloons lift with a set of luggage scales – digital – and they have a “hold” button to make it easier to turn the hand held strain gauge over and see the reading.
This flight we used a new cutdown system that uses a UHF radio (1.4 watts) and a 10 channel modulation system. It should work up to 100km, but we are yet to test it at the extremes. The unit does work on all tests on the ground and this flight we did not have to terminate the balloon other than it bursting.
By the way, Clintons Toyota had a special “Clinton’s” jacket made to keep the chicken warm during the flight, but I doubt the toy mascot needed to worry about the cold. It probably experienced about -50 to -60C in the jet stream. That’s -58 to -76F for my US friends.
Bel;ow are some more photos of the flight. I hope that you appreciate the great leap in photographic quality and that you also appreciate the careful work that I have done to ensure that we recover each and every flight. It is always a challenge to keep our record at 100% recovery. Once we lose a payload, we can never again claim 100% success rate for all of our flights.
Above: Jason and I give the payload a bit of close scrutiny before launch, caught by one of the payload cameras. Posing with the Space Chicken!
Above: You can see the wheat and canola fields up here!!!
Above: Our Space Chicken at 33.333Km
Above: Our Space Chicken in a 400kph free fall.
Above: I hope I slip, slopped, slapped enough before the flight! The sun is bright up here.
Editor’s Note. We do not approve of the term “Space” Chicken from a scientific viewpoint as it is not space, but the company that contracted us to launch the balloon decided to use the term: