OK. Thanks for the info on previous restrictions on prop RPM. I can recall other aircraft having some sort of RPM restriction and always wondered why the Ercoupe did not. Also, it gives me a clue to what RPM I'll use for cruise now -- Max Boogie. Bart
-----Original Message----- From: William R. Bayne <[email protected]> To: [email protected] Sent: Sun, Jun 6, 2010 8:47 pm Subject: Re: [ercoupe-tech] Prop Back Plate Hi Bart, n a 415-D with the McCauley 1A-90 on a C-75, the Approved Flight anual (p. 4) says to "avoid continuous engine operation between 1830 nd 2020 RPM. n a 415-E or G with the McCauley 1A-90 on a C-85, the Approved Flight anual (p. 5) says to "avoid continuous engine operation between 1950 nd 2170 RPM. s I earlier stated, these limits presumably originated with McCauley nd have since been rescinded for all Ercoupes without exception per otes in Univair catalog "revised 1/1/97" (Catalog 205, p. 207-8, note b). cCauley regards 1A-90CF (elliptical tip) and 1B-90CM (square tip) rops of identical diameter and pitch to be "directly interchangeable" with exceptions not affecting Ercoupes, et al.) egards, illiam R. Bayne .____|<underline>-</underline>(o)<underline>-</underline>|____. (Copyright 2010) - On Jun 6, 2010, at 19:15, [email protected] wrote: excerpt> fontfamily><param>Arial</param><smaller>Anybody remember what the cCauley Met-L Props caution RPM was?</smaller></fontfamily> <fontfamily><param>Arial</param><smaller>Bart</smaller></fontfamily> </excerpt>=
