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> have to hand-crank a tiny air compressor just to start a small emergency generator

Similarly, the US Navy maintains banks of pressurized air flasks to air-start emergency diesels. Total Capacity being some multiple of the required single-start capacity




On a sub, anyway, the diesel is always started with air, not just in emergencies. Makes a cool sound as it comes up.


I understand some old radial airplane engines were started with what were essentially shotgun cartridges


They’re called Coffman engine starters [1].

Random fact: Those starters are a plot point in the 1965 film The Flight of the Phoenix, where the protagonists are trying to start a plane that’s stranded in the Sahara, but only have a small supply of starter cartridges left.

[1] https://en.wikipedia.org/wiki/Coffman_engine_starter


Love that movie!


I lived for a while on a sailboat equipped with an ancient Saab tractor engine (8 whole horsepower!). Was designed for cartridge starts in cold weather, though someone had fitted an electric starter by the time I saw it


Not just radials. The Napier Sabre H24 engine in Typhoons used cartridges as well.




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