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Aeromoto
Aeromoto New Reader
7/16/11 11:20 a.m.

Sure I'd take a PW over a Wright any day, but to Wright's credit they do hold the record for world's fastest piston driven aircraft (Rare Bear F8F, 528 mph, Wright R-3350 w/4000 hp.). And a set of four 2200 hp R-3350s did deliver the most important package of WW2 on the Enola Gay B-29. I've since sold them all, but I used to collect warbird radials. I had a few Wright R-3350s inculing a turbo compound, a Pratt R-2800 from a P-47D, and a Pratt R-4360. The 4360 is just nuts- 28 cylinders, 56 spark pliugs, and 4360 cubic inches. It was a cool collection but was just a little nuts in terms of the space they took up.

triumph5
triumph5 Dork
7/16/11 11:52 p.m.

I have heard that the R-3350s had overheating problems through out their life. And it was a bit rushed into production for the B-29. Yes, No?

The 4360 sounds like a flying tugboat engine! Did you ever fire up part of your collection?

How are the cylinders parallel in a radial, yet still connected to the crankshaft in such a "shallow" package? Offset rods?

Curmudgeon
Curmudgeon SuperDork
7/17/11 12:01 a.m.

Cylinders are what I would call staggered and nested. Bet the rear ones got rather toasty.

The R4360 was sorta like two 3350's stacked together:

Sucker was HUGE.

FlightService
FlightService HalfDork
7/17/11 8:48 a.m.

B18 in Mini

I work with this guy's son-in-law. Really cool.

pres589
pres589 Dork
8/19/11 7:42 p.m.

canoe

bearmtnmartin
bearmtnmartin GRM+ Memberand New Reader
8/20/11 11:11 a.m.

In true grassroots style.

http://www.spainvia.com/Merlincar.htm

I read a road test a while back, and as you can imagine, you wouldn't ever want to turn a corner.

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