Herb,
Thank you for the data on the 336. Your .pdf contains what I was looking for. Certainly fits my mission profile. Is 21 gals/hr about right? What do you figure for engine reserve? I see you own the 337C, this link shows a TBO of 1500.
never mind the previous questions... I used the search function...
http://www.tcmlink.com/pdf2/SIL98-9A.pdf
Do most 336/337's make it to TBO?
Thank You Again