Apollo 11 45th Anniversary Hangout – Apollo Heritage and the GLXP.
Well the Apollo Heritage Hangout event is over and I had a lot of fun with the interview or should I say “armchair chat”. It was a very comfortable discussion. I am excited to tell you that there is a video of the event. It was recorded and the link is below. I must say that I am very taken with Dr. Pamela L. Gay (the host) and her interview style. I was never left with a feeling of “what will happen next”.
I was on the Apollo Heritage Hangout with Derick Webber, one of the GLXP judges and an easy to get along with type of guy who was also around during the Apollo era. He is also Director, SpacePort Associates. Author of “The Wright Stuff: the Century of Effort Behind your Ticket to Space” and much more.
So without any more chatter, click on the link below and settle in with a drink and enjoy the fun.
Please connect with out team – Team Stellar: http://teamstellar.org/
About Robert Brand:
Works for; and shareholder in a Communications and Aerospace company called PlusComms:
Head of the Communications, Tracking and Data Division in Team Stellar.
Worked in Communications support for about 100 NASA and US military space mission and several ESA mission. Stationed at the Parkes Radio Telescope in comms support for the NASA Voyager flyby of Uranus and Neptune and ESA’s Giotto mission to Halleys Comet.
Robert regularly launches stratospheric balloons for both commercial work and scientific research. Some of the commercial flights are supporting space research for universities and private companies. The work is done through his company, PlusComms. He has launched 18 flights and recovered all 18 payloads. He will soon be building drones with supersonic capability (gravity assist).
As mentioned in the last post, I was a 17 year old trainee technician when I had the opportunity to wire up some of the NASA Apollo 11 comms gear here in Sydney. I interviewed Richard Holl for the Apollo 11 40th anniversary. He was on of the NASA staff that manned the centre during the landing and moon walk. Below is a story that will surprise a few people, but it did happen and it almost crippled the Apollo 11 mission.
An Explosion in the Scan-converter.
by Robert Brand
A few weeks before the launch of Apollo 11, the scan-converter at OTC Paddington in Sydney exploded when it was switched on by NASA‘s Richard Holl following a test. The explosion occurred because the scan-converter was wrongly rewired one evening. Weeks of frantic work by Richard Holl and his team resulted in the scan-converter being completely rebuilt. It wasn’t until a few days into the mission that their work was completed in time for the historic broadcast. Richard Holl explains:
“The scan-converter used three phase power. It was the only piece of equipment in the room that did. All the other equipment was running on a 110 volt panel that was well labelled. Black is hot and green is ground in the USA, but in Australia black is neutral. It had originally been hooked up correctly to the US standard as we had just completed a full blown simulation the day before. The unit was fused for 240 volts as it had a three phase power supply, but it was the out of phase power that caused the massive current that did all the damage. Apparently an OTC technician working on other circuits thought the black wire was wrongly connected and changed it. When the scan-converter was switched on the next day it blew up. I got a meter out and checked the incoming power and found the mistake. “I repaired or replaced the slow scan monitor, NTSC monitor, camera, disc recorder, power supplies, and Grass Valley video equipment. The camera in the scan-converter was totally fried. The new camera did not have the inversion modification in it. I couldn’t take the hardware out of the bad one to modify the new one, so I had to buy all the components in Sydney. I couldn’t get the exact relays, so I had to specially design the one for Sydney. It was different to the others. Ted Knotts and Elmer Fredd came over from the USA to help with the repairs. Ted did all the logistics like getting Hewlett Packard in Sydney to fix the waveform monitor and Tektronix to fix the oscilloscope, and getting us the spare parts and tools we needed. Elmer and I would never have gotten it all done without Ted taking care of our needs. I had to perform a lot of magic, but nothing compared to the magic Elmer performed when he started working on the converter logic. I bet we replaced over a hundred transistors (all discrete components) and we were still replacing them while the boys were on their way to the Moon. We made it and so did they”.
I believe that it was around this time (minus 40 years) that the scan converter repairs were completed. Not mentioned in the text above (courtesy of my good associate John Sarkissian and CSIRO) was the fact that a motor/generator set was needed and was arranged and secured to a plank of wood in the basement of the Paddington terminal. It worked!