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Old April 25th 06, 10:08 PM posted to rec.aviation.owning
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Default Rapco 215/216 vacuum pumps?

Jim Burns wrote:
Different gear ratio.... Lycoming 6 cylinders typicaly run a ratio of 1.3 :
1, so 700 hours is the most you should expect. Pretty good article on the
sacramento sky ranch site.


Thanks, Jim. I didn't find the article on the SSR site, but I believe you. Do
you know what the rationale is for making the accessory shaft spin faster on 6s?

Dave