----[Please read http://ercoupers.com/disclaimer.htm before following any
advice in this forum.]----

I'm learning more about 'coupes in general, and the
'48 E model I just purchased, through this forum!
Although the previous owner couldn't tell me what kind
of prop the plane has, I figured out pretty quickly on
the flight home that 7148 must mean climb prop. Now Ed
confirms my suspicion. Departing a 1000MSL strip at
50degF, I was pleasantly astounded to see 800+ fpm on
the VSI. When I only saw 100mph at 2350rpm, I felt
fairly sure that I must have a climb prop. I was
alarmed, however, at seeing only 2250rpm on the
takeoff roll, although acceleration felt good and rpm
was normal in cruise. Now I know why. Are there
published climb prop performance numbers to substitute
for the standard ones in the POH, or am I going to be
a test pilot this summer?

Paul

--- Ed Burkhead <[EMAIL PROTECTED]> wrote:
> ----[Please read http://ercoupers.com/disclaimer.htm
> A normal climb prop is 7148. This prop
> is a McCauly 1B90CM
> which is allowed by the type certificate Aircraft
> Specification A-787.
> (propellers and accessories section, paragraph 4) 
> With this prop, I get the
> max allowed static runup rpm of 2225.


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