"I"m a little uncomfortable with this conversation...   One of the forum rules here is that we don't discuss military applications of UAVs.   If you're looking for a drone for a military or government application I really…"

"We're talking about a small drogue parachute to keep the aircraft nose down and at a reasonable speed...  a co2 supply seems like a pretty heavy thing to haul all the way to the edge of space just for stabilization. There are a lot of…"

"Ardupilot should keep running if it loses a GPS fix, which it will above that altitude, so you don't need any sort of reboot... if it gets a fix back it should start using it. As you think about design... a couple of concerns.  One -…"

"Ken has the answer there.  We're using the Lassen Trimble LP, which does work at that altitude.  You have to go into the configuration utility and change it from the proprietary binary Lassen protocol to output NMEA sentences and make…"

"I'm also (slowly) working on a balloon launch glider at the moment!  We definitely need to compare notes as we go forward.  There's no reason that ardupilot hardware won't work with the firmware rewritten.  Though of…"

"I've been nibbling around the edges of the code for a few weeks myself.  Are you two asking about tutorials on using the code as is to get a plane flying itself, or about an overview of what does what so you can start really coding to…"

"Sorry for not being clear -  I understand that APM2 is a complete solution, my question was really how far is APM1 plus IMUv3 from being a complete solution as well?  Would that combination work 'out of the box' with the stock…"

"Seeking a little clarification...   Once the IMU V3 firmware is finished and the code released (I read somewhere that should happen next month?) Will it be possible to plug the V3 IMU into the Ardupilot Mega 2.0 board and have a functional…"

"I'm also very interested in this...  I've really just started going through the Arduplane code, but from what I've got of it so far it LOOKS like navigation towards a waypoint is done by 2 dimensional bearing... so if it crosses…"