L-188
Topic Author
Posts: 29881
Joined: Wed Jul 07, 1999 11:27 am

Lycoming R-680

Mon Jul 01, 2002 9:16 pm

Hey guys, in another topic I mentioned that I had found the FAA database for TCDS's on the web and it listed if the certificate was held in the public domain.

Well I was looking at the certificates and was pleasantly surprised to find out that the Stinson SM8A certificate is now a public document.

That aircraft was powered by a Lycoming R680 rated at 215 horsepower. Anybody have any idea as to how common are these engines out on the used market? And if they are rare, anybody have a recommendation for an acceptable modern substitute that may have the potental to be used in it's place?
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dnl65
Posts: 78
Joined: Fri Jun 22, 2001 5:52 am

RE: Lycoming R-680

Tue Jul 02, 2002 2:42 am

L-188,

I believe that the R680 was used in some variants of the stearman pt-13/pt-17/NS-2 trainers. If this is correct there should be plenty of cores and spares around take a look in the engine section of trade-a-plane. Also, if you are interested the air and space museum had the original blueprints for the sm8 at one time. Contact the Garber restoration facility in Silver Hill, MD for more information.
 
FBU 4EVER!
Posts: 980
Joined: Sat Jan 27, 2001 6:53 am

RE: Lycoming R-680

Tue Jul 02, 2002 3:32 am

Yes,the R-680 was used in the PT-13 variant of the venerable Stearman,albeit at a 220 HP rating (the R-680-7) or 280 HP (R-680-11).The PT-17 was powered by the 225 HP Continental R-670-5.
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L-188
Topic Author
Posts: 29881
Joined: Wed Jul 07, 1999 11:27 am

RE: Lycoming R-680

Tue Jul 02, 2002 11:30 am

Yes!!

I was hoping for that when I saw that the TC was in the public domain DNL 65.
I hope that they still do.

If they do my plan will become more complete.
OBAMA-WORST PRESIDENT EVER....Even SKOORB would be better.

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