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Professor Les Kelso describing the propulsion system of a small airplane to three cadettes, 1943

Professor Les Kelso is pointing out the propulsion system of a small general aviation airplane. These airplanes, sans wings, were in the Aeronautics Laboratory for purposes of visualization and illustration. The plane may be a Luscomb or a…

Professor Les Kelso describing the propulsion system of a small airplane to three cadettes, 1943

Professor Les Kelso is pointing out the propulsion system of a small general aviation airplane. These airplanes, sans wings, were in the Aeronautics Laboratory for purposes of visualization and illustration. The plane may be a Luscomb or a…

Professor Les Kelso instructing two cadettes about an airplane engine, 1943

Professor Les Kelso is instructing two cadettes about an airplane engine.

Professor Les Kelso instructing two cadettes about an airplane engine, 1943

Professor Les Kelso is instructing two cadettes about an airplane engine.

Three cadets are practicing drilling a piece of metal, 1943

Three cadets are practicing drilling a piece of metal. A piece of wood is holding the metal in place with a clamp.

Three cadets are practicing drilling a piece of metal, 1943

Three cadets are practicing drilling a piece of metal. A piece of wood is holding the metal in place with a clamp.

Two cadettes are working with a control system for a wind tunnel test, 1943

One cadette is watching another cadette operate a control system for a wind tunnel test.

Two cadettes are working with a control system for a wind tunnel test, 1943

One cadette is watching another cadette operate a control system for a wind tunnel test.

Two cadettes examining a cone-shaped part on the side of a plane, 1943

A cadettes is touching the top of a small cone-shaped part on the side of a small airplane in the Aeronautics Laboratory. This plane, sans wings, was used for instructional purposes. Another cadette is by her side also looking at the part.

Two cadettes examining a cone-shaped part on the side of a plane, 1943

A cadettes is touching the top of a small cone-shaped part on the side of a small airplane in the Aeronautics Laboratory. This plane, sans wings, was used for instructional purposes. Another cadette is by her side also looking at the part.

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