Dan,
The only performance chart I've seen was inside the front cover of
Coupe Capers, within the last year. There was evidence that it was
for a D-model, since it mentioned 1400 lbs. However, with the new
Gross-Wt. STC (if you have that), the rigging is very close to D-
model, and Hartmut advised me that that performance chart is the
closest we have for my 415-C's present configuration. Hope that helps.
It's worth emphasizing how very much it matters what weight you're
flying at. The weighed-data that came with my 415-C showed around
859 lbs. (empty of fuel but full oil). On my first long cross-
country in it, I was flying solo even though carrying a lot of
baggage , following the other SoCal 'Coupers across the desert to
Jean, NV, and back to SoCal.. On that trip, I weighed about 125
lbs., including clothing. I had no trouble climbing up to 9500' on
the way back, crossing the hot desert. Gary Dalluge was leading our
group in an Alon, and I was up to 9500' (before I knew that a 'Coupe
was supposed to be slow to climb). On the same trip, departing Jean,
I worried about another 'Coupe I saw take off that had 2 tall adults
in it + heavy baggage, struggling to get off the desert floor. This
is not to flaunt being light, but only to say that I can definitely
feel a difference when my CFI flies with me (Walt Wasowski, the same
CFI in Larry Conley's story, about 185#). If you are concerned about
climb performance in the conditions you describe, I'd second Ed B's
advice to fly solo.
Linda
3437H (Sky Sprite)
'46 415-C
L.A.
2b. Re: FW: [ercoupe-tech] performance charts
Posted by: "John Roach" [EMAIL PROTECTED] planeohn
Date: Tue Mar 25, 2008 7:43 pm ((PDT))
Another variable would be the ability to lean the engine on the ground.
As a flatlander, my carb is wired full rich and there is no sign of a
mixture control in the cockpit. Were I to contemplate flying out west,
I'd want to make sure that I could lean the carb well before I bought
the charts for the trip. I've had my 415C (C 85 with a 47 pitch prop and
gross about 1200 lbs) up to 7000 MSL on a hot summer day when I
estimated the density altitude as approximately 10,000 ft. It really had
no climb left at that point and it took a lot longer to get there than
it took to come down.
John Roach
N 2427H
