J.Herris - Weird Wings of WWI /Centennial Perspective/ (70)

The Martin Cruising Tractor was designed as a test-bed for innovative propeller drive systems. Two Liberty engines were mounted in the fuselage and geared so either or both could drive both propellers. The designer envisioned the concept developed as a bomber but this did not occur.

J.Herris - Weird Wings of WWI /Centennial Perspective/ (70)

The Martin Cruising Tractor and the K-III "Kitten" photographed together showing their relative sizes.

Другие самолёты на фотографии: Martin, J.V. K-III Kitten - США - 1918