(800) 853-2651
SHOP NOW

Pratt Whitney Wasp-Jr

T

T_Bone

Well-known Member
My son acquired a Pratt Whitney Wasp-Jr, 18cyl radial, built 1925 too 1939?, 600hp?, DC-6?, sealed in a gov't shipping crate.

The injectors are missing, one mag is missing the cover plate, appears complete otherwise appears to be the exchange unit and not the rebuilt unit that's stamped on the case.

Does his engine have a value other than scrap?

T_Bone
 
You might want to count the cylinders again and look to see if you can find the data plate. If it has 18 cylinders, it must be an R-2800 Double Wasp, not an R-1535 Wasp Junior. (The Wasp Jr. has only 14 cylinders.)

It's certainly worth something, as they aren't making any new ones and the warbird crowd keeps up the demand for parts. Have your son watch the Pratt & Whitney ads on barnstormers.com
P&W Wasp radial engines Wikipedia
 
Injectors missing? I've never seen a radial with fuel injection, just carburators. Maybe water/alcohol injection? At any rate, as was said, they aren't making those anymore, so it will be worth something. We had some radials at A&P school, but I'm glad I work with turbines instead.
 
Hi Mark,

Thanks for the website info. I'ts a R-1535, twin-wasp-jr.

He said he'd beable too get more info with that.

T_Bone
 
A neighbor of ours had one in his barn. Used a drive shaft, a couple different transmissions, and a PTO shaft to run his grinder/mixer with it.
 
The sparkplugs look like injectors, and have "hoses" going to them. Just a sealed system.
Even if toast inside, it is substantially valuable. If not blown it might be worth more than 5000. JimN
 
Hi T-Bone,

The R-1535 Twin Wasp Junior is a relatively rare engine, which may make it valuable to someone who is restoring an old warbird or building a replica. On the other hand, it wasn't used on very many aircraft so the market is going to be limited. I would imagine that most of the major parts are interchangeable with the ubiquitous 450 HP P&W R-985, for which parts are readily available.

The R-1535 powered my favorite airplane of all time, Howard Hughes' H-1 racer. The original H-1 sits in the Smithsonian. Several years ago a fellow built an exact replica of the H-1 and went on to set several new speed records. The replica was destroyed and its builder killed in a crash at Yellowstone. (I believe the crash resulted from engine failure, BTW.)

The web page below describes both the original and replica H-1s. From the article: "There were less than 3000 of the R-1535 engines made, and today they are exceedingly rare. Most are believed to have been destroyed. We believe that the engine installed on the Racer replica is the only known flying example of a P&W R-1535 in the world."
Hughes H 1
 
You must log in or register to reply here.
Tractor Parts Tractor Manuals

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Copyright © 1997-2024 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters
Website Accessibility Policy

Back
Top