2) Choose Lifting Gas Select Gas Pure Helium 97% Helium Hydrogen ( Gas Density: Kg/cu m )
3) Enter weight to be lifted: g ( include weight of Payload + Parachute and Line etc. )
4) Enter desired average ascent rate: m/s ( 4.0 to 6.0m/sec is typical )
5) Click to
Estimated burst altitude: m ( ft )
Gas volume required: cu m ( cu ft )
Neck lift: Kg ( lb )
Time to burst: min ( hrs )