be filled with hydrogen gas, which is madeby the action of sulphuric acid on iron, water being added fordiluting purposes. Hydrogen gas is generated in vats or tanks, about si-x feetin height and six feet in diameter. It requires about two hundredand fifty pounds of iron, and the same quantity of… … FlGIEE 7TYING UP THE APPENDIX AIRCRAFT April, iQio Three covered tanks placed side by side are necessary for gen-erating hydrogen (see figure 9). The iron is put into the firstone and it is then half filled with water. Through a hole in thecover of this tank a lead pipe is inserted and reaches…
Aeronautics
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