Home > North America > United States of America > Pennsylvania > Related Images
Jacobs (Pratt & Whitney Wasp Jr. ) R-985-AN5, Radial 9 Engine, ca. 1940
Wall Art and Photo Gifts from Heritage Images
Jacobs (Pratt & Whitney Wasp Jr. ) R-985-AN5, Radial 9 Engine, ca. 1940
The Wasp Jr. R-985 was the third engine type designed by Pratt & Whitney Aircraft, following the Wasp R-1340 and Hornet R-1690, all of which were nine-cylinder engines. Virtually a Wasp of reduced dimensions, the Wasp Jr. followed closely the details of construction throughout. The Wasp Jr. originally rated at 224 kW (300 hp), was first type certificated in January 1930. Designed for light transports, trainers, sport aircraft, and helicopters, number of R-985 models were made, most at 298 kW (400 hp) or more power. The R-985 powered a wide variety and large number of military and commercial aircraft, making it one of the most successful reciprocating engines ever built in its power class. The Jacobs Aircraft Engine Company of Pottstown, Pennsylvania built this Pratt & Whitney-designed R-985-AN5. Jacobs converted it for vertical helicopter installation. It powered the Sikorsky XH-5, YH-5A/D/E, H-5A/D/F/G and Kellett YH-10 helicopters
Heritage Images features heritage image collections
Media ID 23877451
© Heritage Art/Heritage Images
Air And Space Museum Air Transport Aircraft Aviation Engine Flight Nasm National Air And Space Museum Propulsion Propulsion Reciprocating Rotary Reciprocating Motion Rotary Engine 2nd World War Second World War World War 2 World War Two
EDITORS COMMENTS
This print showcases the Jacobs (Pratt & Whitney Wasp Jr. ) R-985-AN5, a remarkable radial 9 engine from around 1940. As the third engine type designed by Pratt & Whitney Aircraft, it followed in the footsteps of the Wasp R-1340 and Hornet R-1690 engines. With nine cylinders, this engine was essentially a smaller version of its predecessor, maintaining meticulous construction details. Originally rated at 224 kW (300 hp), the Wasp Jr. received its first type certification in January 1930. It was specifically designed for various aircraft types such as light transports, trainers, sport aircraft, and helicopters. Most models produced had an impressive power output of 298 kW (400 hp) or more. The success of the R-985 cannot be overstated; it powered numerous military and commercial aircraft throughout its existence, solidifying its status as one of the most accomplished reciprocating engines ever built within its power class. This particular Pratt & Whitney-designed R-985-AN5 was constructed by the Jacobs Aircraft Engine Company based in Pottstown, Pennsylvania. However, they took it a step further by converting it for vertical helicopter installation. This modified engine played a crucial role in powering several iconic helicopters including Sikorsky's XH-5 and YH-5A/D/E models along with Kellett's YH-10 helicopter. With its rich history and significant contributions to aviation technology, this print serves as a testament to both engineering excellence and innovation within the aerospace industry during that era.
MADE IN THE USA
Safe Shipping with 30 Day Money Back Guarantee
FREE PERSONALISATION*
We are proud to offer a range of customisation features including Personalised Captions, Color Filters and Picture Zoom Tools
SECURE PAYMENTS
We happily accept a wide range of payment options so you can pay for the things you need in the way that is most convenient for you
* Options may vary by product and licensing agreement. Zoomed Pictures can be adjusted in the Cart.
