Or you could fill 11163m³ no pressure balloon which would be able to lift about 12725kg or 28000 lbs. That's pretty cheap to get to 130K Robert At 11:12 AM 11/1/2013, you wrote:
Henry V is right about making hydrogen in bulk. Steam reforming gives about haf the mass of natural gas as hydrogen. So if LNG costs $1000 a ton, hydrogen would cost about twice that and LH2 somewhat more because of the liquefaction cost.
