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Ranger Inverted Oil system

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Lotahp1

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I was working on firewall items and while I probably don’t need it for my mission I’m curious if anyone has the old data on Harold Kriers Ranger Chimpmunk and maybe Arts? I have seen somewhere there was drawings etc for what mods were done and what parts were used etc as they liked to share the info. I’m sure there has to be several Great Lakes with Rangers that had inverted oil? Anyway, just looking more for curiosity sake but maybe I’d add it if it was doable easy enough. I do have pipe dreams of doing IAC primary with it just to learn to be a better pilot and be the odd ball.
 

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