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All,
I know that castor oil was used as a lubricant for rotary engines in WWI. I'm pretty sure that it's a type of vegetable oil, and I know that pilots couldn't help but ingest some of it when they flew. I also know that much has been made of the substance's ... er ... laxative properties. :P
However, I have a number of questions:
1) Where was it produced and how available was it during the war? I've read that there were general shortages in Germany toward the end of the war, but one would think that vegetable oil would be easy to refine and grow locally.
2) Was it only used in rotary-engined craft?
3)Was castor oil used in rotary-powered planes because the pilots would ingest it, or were there other reasons?
Regards,
__________________
Drew Ames
"Drew can talk -- by Jove, how the man can talk!" -- James Norman Hall in "High Adventure"
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