P&W PT1

Free-piston gas generator intended for use with P&W's first gas turbine.

P&W PT1

A turboprop, the PT1 never flew.

P&W PT1

The PT1 was P&W's last liquid-cooled engine.

P&W R-1535

P&W R-2060

Liquid-cooled 20-cylinder built for US Army Air Coprs in the early 1930s.

P&W R-2060

The "Yellow Jacket" suffered from fuel mixture distribution problems.

P&W R-2060

P&W's first liquid-cooled engine never flew.

P&W R-2180

"Twin Hornet" of 1938 was upstaged by the R-2800.

P&W R-2180E

The R-2180E, circa 1949, shared parts with the R-4360.

P&W R-2180E

P&W R-2270

First run in 1930, P&W's first two-row radial.

P&W R-2270

The R-2270 was built from Wasp and Hornet parts.

P&W R-2270

P&W R-2800

This B Model has an early torque nose case.

P&W R-2800

D Model cylinder with reversed cooling air flow was only used on Northrop XP-56.

P&W R-2800

Experimental Aftercooler.

P&W R-2800

Experimental Aftercooler.

P&W R-2800

Connecting rods for Models A through E.

P&W R-4360

Cooling fan provisions for B-36.

P&W R-4360 VDT

Curtiss-Wright R-3350 used power recovery turbines geared to the crankshaft. P&W used exhaust energy for supercharging and jet thrust in the Variable Discharge Turbine.

P&W R-4360 VDT

P&W R-4360 VDT

With intercoolers, turbines, compressors and ducting, the VDT was as large as the engine.

P&W XH-2600

Also called the X-1800, this 24-cylinder liquid-cooled engine was built for the US Army Air Corps.

P&W XH-2600

P&W XH-3730

The 24-cylinder liquid-cooled XH-3730 was intended for the US Navy.

P&W XH-3730

P&W XH-3730