The Pratt & Whitney Wasp series are among the most important piston aero
engine designs ever built. It was introduced in 1932 with an output of 750 hp,
the final version produced 1,350 hp. A total of 173,618 R-1830 engines were
built, a notable figure which makes it the most produced aircraft engine.
- The R-1830 "Twin Wasp" was a two-row engine of 14 cylinders, each having
a bore and stroke of 5 1/2". The R-1535 "Twin Wasp Junior" was also a
two-row engine of 14 cylinders, but its bore and stroke was 5 3/16".
- Reliability was a hallmark of Wasp series engines. They powered many of
the WWII era aircraft and earned a wartime record of durability in extremes
of climate, hostile fire and frequent abuse of the operating limits
contained in the manual.
- For most of the 1930s the R-1830 was the largest U.S. engine under
The Twin Wasp design began in 1931 under the guidance of legendary P & W
engineer Luke Hobbs. This twin-row radial incorporated 14 cylinders in two rows
of seven, mounted to a forged aluminum crankcase. Liberal amounts of magnesium
were used in the design to save weight, and special attention was given to the
engine mounts to reduce vibration.
Pratt & Whitney augmented its output of the engine by granting license
production to Buick, Chevrolet and Commonwealth Aircraft in Australia.
The engine is still in regular service around the world, mostly with fleets of
DC-3s, a tribute to the sound engineering design.
Enjoy viewing all of our rare aviation manuals and documents in our online
- The P&W R-1830 radial engine powered numerous aircraft, including the
Bristol Beaufort, Consolidated B-24 Liberator bomber, Douglas SBD Dauntless,
Consolidated PBY (Canso/Catalina), Curtiss P-36 Hawk, Douglas C-47 Skytrain
(DC-3), Seversky P-35, Douglas TBD Devastator, Grumman F4F-4 Wildcat, and
the Short Sunderland V flying boat.
These WWII manuals are part of our aviation history and will walk you through
all systems and operations; They are an absolute must see.
Usage: AviationShoppe.com provides these items freely for historical and
Clicking the links below will
launch our Interactive Document Viewer in a new window.
| || |
Pratt & Whitney R-1830 Radial Engine Service Instructions
Original 1945 Service Instructions Manual. Produced by Pratt & Whitney, the R-1830 was a two-row, 14-cylinder, air-cooled radial design. It displaced 1,830
in. This illustrated wartime manual will allow you a rare look into the amazing R-1830 Twin Wasp radial
WWII (1945) Pratt & Whitney R-1830 Twin Wasp Service Instructions Manual
| || |
Pratt & Whitney R-1830 Radial Engine
Pratt & Whitney maintenance manual for the R-1830 Twin Wasp radial engine. Packed with invaluable data including very detailed drawings and diagrams. By
Pratt & Whitney's tenth anniversary, it was making engines that were making history. The Twin Wasp was the first twin-row design. It performed magnificently and was selected to power fighters,
bombers and transports. A fascinating study into this remarkable
View: P&W R-1830 Twin Wasp Maintenance Manual (1946)