Hot air can provide lifting power whenever it is needed, but only by carrying huge fuel supplies to heat the air; when the fuel runs out, the balloon comes down.
22.
So you don't need fractals to get the optimum surface-area-to-volume ratio-you're always limited by the lifting power of your gas . talk ) 19 : 55, 29 December 2009 ( UTC)
23.
The first-floor training center will be outfitted with six lifting stations, including an Olympic lifting platform, a lifting power cage, and dumbbell stations as well as a number of cardio areas.
24.
Incidentally, the lifting power of helium has been discussed here repeatedly; there should be lots more in the RD archives . & mdash; Lomn 21 : 40, 15 October 2009 ( UTC)
25.
Among Monday's other successes was the firing of four strap-on booster rockets, used for the first time to give the 57-meter ( 188-foot ) H-2A extra lifting power for its dual cargo.
26.
Vick said that the Ukrainian rocket had flown out of Russia in a version with two stages but never with three, which is how Sea Launch wants it to fly for greater lifting power.
27.
To get the extra bit of lifting power, you need something pretty close to a true vacuum or else you might just as well use hydrogen .-- Anonymous, 03 : 55 UTC, April 24, 2010.
28.
This has half the lifting power of hydrogen so the balloons had to be larger, however coal gas was far more readily available and the local gas works sometimes provided a special lightweight formula for ballooning events.
29.
Independently adjustable separate front seats were made available at extra cost and at the same time the engine's compression ratio was increased from 6.73 : 1 to 7.5 : 1, lifting power by 3 horsepower to 93.
30.
What are the practical considerations for a high-altitude airship ( i . e . how much does the lifting power drop as atmospheric pressure decreases ) ? talk ) 07 : 48, 17 November 2008 ( UTC)
