Replies to post #105297 on World Surveillance Group Inc (fka WSGI)

[followinsnsr]

Nil, you ever see this one...interesting from Bosch Aerospace.
Worth watching.

They say it will cost 20 million to lift 430 pounds to an altitude of 45000 feet.

How to build and fly a UAV Airship Blimp

how much gas would be needed to lift a 430 pound object to 45,000 msl ?

pilotcoolbiz (3 months ago) Reply That is a very complicated lift. The altitude is the problem. Helium expands with altitude. I guess the question should be how many millions of dollars would it cost to get a payload to 45K? The answere would be something like 20 million dollars to start.