Quoted
Originally posted by CanisD
The Germans actually had a pretty interesting idea for the Hindenburg, double gas cells. The larger helium cell surrounded a smaller hydrogen cell. The hydrogen would be vented instead of the helium to adjust buoyancy. Since the hydrogen was surrounded by the inert helium, the fire risk was greatly reduced. As for supplies, we've got enough here in the US to last until about 2015. I personally don't expect the US to have more than a couple dozen airships both military and civilian and historically helium was discovered in Canada in the 1930's, as well as Russia, Poland, and Algeria so while I hold the monopoly now, it won't last.
Quoted
Originally posted by CanisD
If properly handled, hydrogen can be used with relative safety. The Germans were quite careful to keep their gasbags at very high levels of purity with a low oxygen content. Oxygen contamination is what makes hydrogen most dangerous. The British were not as careful and when R-38 crashed, the explosion broke windows 2 miles away! One of the American observers before the flight was worried about the high oxygen content in the gasbags but the British couldn't afford at the time to vent the gas and refill it. One must remember that the Hindenburg was the only fatal civilian German Zeppelin accident and there is still great controversy about whether hydrogen was the primary cause or not.
Forum Software: Burning Board® Lite 2.1.2 pl 1, developed by WoltLab® GmbH