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April 20, 2010 2:44 AM Subscribe
What is the cheapest non-deadly way to assemble a balloon-based aerial photography rig?
posted by Etaoin Shrdlu to science & nature (7 answers total) 6 users marked this as a favorite
I'd like to use a balloon to lift a fairly large expensive camera
100-200 m into the air. Gear and tether weigh about 4 to 5 kg. I've found a balloon with 2.5 m diameter for sale locally. How much will this lift? How much gas do I need? What is the maximum amount of wind in which I should attempt flight?
Helium costs three times as much hydrogen. How crazy would it be to fill the balloon with hydrogen? I'll be on a third world beach so don't have to worry about laws and rules, but will likely attract curious cigarette-smoking onlookers. What are the real dangers here?