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Al,
Check out STC SA1-336 on the FAA web site. It specifically lists C and
CD Models as eligible for the C90 conversion. It may be that when John
bought Skyport, he did not get all of the STCs with his purchase.
John Roach
N 2427H
[EMAIL PROTECTED] wrote:
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Good work, John! I wonder why Skyport John hasn't chimed in on this
one. Now will the increase in HP have any effect on the Sport rule?
Is there an HP limit or rating?
Al
On 09/05/2006 6:26:38 AM, [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
wrote:
> ----[Please read http://ercoupers.com/disclaimer.htm before
following any
> advice in this forum.]----
>
>
> Continental Service Bulletin M47-16 covers the conversion of these
> engines. Originally published on December of 1947, the bulletin
> prohibited the conversion of a C 75 or C 85 to a C 90. However after
> several revisions Continental issued Supplement No.1 to the Service
> Bulletin on February 26, 1960. This supplement specifically allows the
> conversion and identifies the changes necessary. The Service Bulletin
> and Supplement No. 1 may be found at:
> http://www.aeronca.com/ServiceLetters/cont_m47_16.pdf
>
> My undated copy of a Skyport Ercoupe Service Manual indicates on page 58
> (Engine Conversion Installations) that Skyport has a FAA approved STC
> for the conversion.
>
> John Roach
> N 2427H
>
> [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> wrote:
> > ----[Please read http://ercoupers.com/disclaimer.htm before following
> any advice in this forum.]----
> >
> >
> >
> > No Al, It was all done on the same 337.
> > Lynn
>
>
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