"I worked in a team of 4 last year to build and fly an autonomous blimp to do 3D reconstruction of the terrain using computer vision (a single camera + IMU).   We used a PC104 board featuring a 2.2GHz Core 2 Duo chip. Camera was firewire.…"

"Let's try that embedding again: "

"We have played around with Zero Pressure balloons too. Infact, we found they were quite hard, to build bigger ones. <iframe width="420" height="315" src="http://www.youtube.com/embed/uK80MXHQ5hA"…"

"I'm into high altitude projects too (check my profile). I wonder about the legality of 'flying' something back from balloon burst to land at some pre-defined spot. If it's an unpowered bathtub-lifting body type thing, I wonder if…"

"This is something I'm very interested in. Does the controller have a discrete set of possible known faults or does it just re-learn its model constantly? How quickly can it detect a fault? I think this fault tolerant stuff is where UAV research…"

"An open source boat?! while{1}{ float(); } That's GPL by the way so I don't mind you using it."

"Fedex and a friendly supplier who will put a 'massaged' value of goods on the side. Never, ever, ever use parcelforce. Pay the premium for Fedex Express, it saves a lot of money in the long run and arrives faster. I say this having made…"

"UFO-MAN: Try Aerocon Systems in the US. They've a nice range or surplus stuff. Maybe elaborate a bit on your requirements for the parachute too, as that affects the design - drag vs stability, deployment speed and peak opening force, and so…"

"I don't think you will have any luck with trying to fly a parafoil at 100,000ft, because of a phenomenon called 'Added Mass' - when calculating the CoG and thus stability of a parafoil, which is usually somewhere in the rigging…"

"R. Drone - getting your basic ham radio license will both answer your legal questions and teach you enough electronics to be able to answer your electronics question. It will also let you experiment with more radio power. It's quite easy, not…"

"What Olivier didn't mention is that the MCU used on Paparazzi, the LPC2148, is an order or magnitude more capable than the Atmega168/328 used in the Ardupilot. - 512kB Flash vs 16/32kB - 32kB Ram vs 2kB/1kB - 32-bit core vs 8-bit core - 60 MIPS…"