Roots-Type Supercharger System (Soucek)

This supercharger system was installed in the Wright Apache XF3W-1, Bureau No. 7223 flown by Apollo Soucek on record altitude flights over Washington, D.C. It included a N.A.C.A. Model 2E Roots-type blower case built by the Allison Engineering Company for the U.S. Navy Bureau of Aeronautics. This is one component of the supercharging system that included an air intake duct (or scoop), intercooler, driveshaft, blower, and exhaust. This system was connected to a Pratt & Whitney Wasp R-1340B engine that powered the XF3W-1 aircraft, and it made possible the high-altitude records achieved.

Display Status

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.

Object Details

Country of Origin

United States of America

Type

PROPULSION-Accessories (to an Engine)

Manufacturer

Allison Division, General Motors Corporation

Physical Description

Duct with bypass from Apollo Soucek's Wright Apache used in high-altitude record flight.

Dimensions

3-D (Overall): 24.4 × 24.8 × 35.6cm, 4.3kg (9 5/8 in. × 9 3/4 in. × 1 ft. 2 in., 9.4lb.)

Materials

Ferrous Alloy
Non-Magnetic MetalPaint
Copper Alloy
Unknown Coating

Inventory Number

A19350010003

Credit Line

Transferred from the Navy Department, Bureau of Aeronautics

Data Source

National Air and Space Museum

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