Warbird Information Exchange

No, I'm not referring to Curtis Wright radials or even OX-5/OXX-6s and the like...rather D-12s, Conqueors etc.

For that matter any early 1920s-30s (non-Merlin) Packard power plants out there...even in non-flying running condition?

I'd hazard a guess if anyone has one it would be Glenn Peck in Missouri.

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Remember the vets, the wonderful planes they flew and their sacrifices for a future many of them did not live to see.
Note political free signature.
I figure if you wanted my opinion on items unrelated to this forum, you'd ask for it.

Here are some D-12 equipped designs:
http://aerofiles.master.com/texis/maste ... rtiss+d-12
And Curtiss Conqueror types:
http://aerofiles.master.com/texis/maste ... ch%3A&s=SS

From Aerofiles:
Curtiss-Rolls? "Strange thing, isn't it, that the USA has never recognized Glenn Curtiss as by far the greatest man America has ever produced in Aviation? ... And the D-12 engines, from which the Rolls Falcon, and ultimately the Merlin, are descended ... So far as I know, there is nobody in the world who has claim to have influenced aircraft design and production as he did or had done ..." Charles Grey, founder and editor of The Aeroplane 1911-1939; editor of Jane's All The World's Aircraft 1916-1941, and an Englishman (c.1950).

Yes, the engines were ubiquitous in the "golden age"...hence my question.

I realize most if the OE a.c. are airworthy...or even statically...extinct. But there are a few lesser-known flyers out there.

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Remember the vets, the wonderful planes they flew and their sacrifices for a future many of them did not live to see.
Note political free signature.
I figure if you wanted my opinion on items unrelated to this forum, you'd ask for it.

How about a floater?
https://www.boatingmag.com/go-fast-blas ... -12#page-2
or a replica?
https://www.eaa.org/en/eaa-museum/museu ... ---nx606pe

The D-12 had nothing to do with the R-R Falcon, which was a WWI design powering the Bristol F2 and others. Separate cylinders, not a block.

But the D-12 directly inspired the R-R Kestrel -- the Air Ministry was appalled at having an American engine in the Fairey Fox, and having the D-12 engine built under license in the UK. So they commissioned R-R and also Napier for a similar engine.

Whereupon R-R stole Napier's Chief Designer, Arthur Rowledge, and thus won the competition.

Dave

Wasn't it just the manufacturing technique (the cast block) that was copied? that was the engine advancement Curtis achieved, there was nothing else that inspired the Kestrel from the D-12, RR already built there own 60 deg V12 aero engines before the D-12

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Martin
Wide open & turning left.

There is a Packard diesel radial engine surviving on a Stinson airframe. It used to be at the New England Air Museum but I can't remember where it was sent.

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"I can't understand it, I cut it twice and it's still too short!" Robert F. Dupre' 1923-2010 Go With God.

A cast block was difficult to do then. There are all sorts of channels and passages inside for oil and water and pistons. Quite intricate.

The Curtiss was the spur. But Rowledge then added supercharging, a geared down prop, and allowed for higher octane fuels.

This was state of the art at the time.

If I remember correctly what I read about the P6 replica in Sport Aviation about 25 years ago (had the great fortune to see it in Oshkosh in 1993), the project almost came to nothing due the more-or-less non-availability of a correct engine. Probably one of the most rare engine types today..

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45-47=-2

As far as I know, the Packard diesel Stinson Detroiter was never at the New England Ait Museum, but did spend many years at the museum now known as The Henry Ford.

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Kevin McCartney

Curtiss Challenger engines are still around on some Robins:

https://en.wikipedia.org/wiki/Curtiss_Robin

Went to NEAM on Friday. They have a Guiberson Diesel Engine; T-1020, on display.

Phil

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