Hi John, You're right, of course. Sorry if I was unclear.
It was not my intention to infer that the rescinded McCauley restrictions would ever have been a "production" Ercoupe tach marking. An owner can change props as deemed appropriate to the "mission"; and as owners change, the "mission" may change. I did mark my own tach with that range when it applied, though. Don't remember how. Best, WRB -- On Mar 9, 2010, at 13:39, John Cooper wrote: > On 3/9/2010 2:06 PM, William R. Bayne wrote: >> At one time there was a range of RPM in which sustained operation with >> the McCauley props was not recommended. > That restriction was never reflected in the tach. Remember, most of the > planes of the era were delivered with a wooden prop. The McCauley > restriction required a placard and was ultimately deemed unnecessary > and > rescinded in 1949. See > http://www.skyportservices.net/cooperjr/McCSB13.htm > > > -- > John > Skyport East > www.skyportservices.net >
