This appears to be a prototype chamber for a 2,000 pound thrust MG 19 rocket motor developed by Reaction Motors, Inc. for use as a JATO (Jet-Assisted-Take-Off) unit for heavily-loaded PBM Navy seaplanes. The MG19 was developed in 1943.

However, the Navy did not adopt liquid propellant JATOs and only used them on an experimental basis. Both the Navy and U.S. Army Air Corps opted for simpler and cheaper solid propellant JATOs. This object was donated to the Smithsonian by the Reaction Motors Division, Thiokol Chemical Corporation in 1985.

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-Components (Engine Parts)

Manufacturer

Reaction Motors, Inc.

Dimensions

3-D (Approximate): 31.8 × 17.8 × 71.1cm (12 1/2 × 7 × 28 in.)
Storage: 138.4 × 82.6 × 112.4cm, 186.9kg (54 1/2 × 32 1/2 × 44 1/4 in., 412lb.)

Materials

Copper Alloy
Ferrous Alloy
Non-Ferrous Metal Alloy
Paint

Inventory Number

A19850110000

Credit Line

Reaction Motors Div., Thiokol Chemical Corp.

Data Source

National Air and Space Museum

Restrictions & Rights

Usage conditions apply
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