Caproni Ca.1

The Caproni Ca.1 or Ca.31 was a twin-boomed pusher was originally powered by the same engines as its predecessor the Ca.30: a 90hp Curtiss pusher at the rear of the nacelle and twin 80hp Gnome rotary tractors at the front of the booms. Some were upgraded to 3×100hp Fiat engines instead. [1]

Caproni Ca.1/Ca.31
Caproni 31 San Diego Air & Space Museum 2.jpg
Role Bomber
Manufacturer Caproni
First flight late 1914 [1]
Primary users ItalianRoundelGreen.png Italy
Roundel of the French Air Force before 1945.svg France
Number built [note 1]
Engine 2×80hp Gnome+90hp Curtiss or
3×100hp Fiat A-10[note 2]
Armament nose flexible MG and
rear flexible MG
270 kg (605 lb)[3] of bombs
Climb [note 3]

French Production

When in 1915 the French still had no good native design for a heavy bomber, they turned to license-built Capronis as a solution. They were constructed by R.E.P. and these were labeled "C.E.P." aeroplanes, which stood for "Caproni Esnault Pelterie". Later, some Italian-built Capronis were purchased, and their designation was "C.A.P.", resulting in the Caproni Ca.1 being named the CAP.1 B2.

The French-built Caproni 1s were powered by a variety of engine combinations, but eventually it was settled on a 130hp Canton-Unné pusher and two 80hp Le Rhônes, which was inadequate for a bomber of this size. Only fourteen were built and they probably were used only for evaluation and experimentation rather than front-line service use, since the improved C.E.P.2 was preferred. [2]

For more information, see Wikipedia:Caproni Ca.2. For information on Caproni plane names, see the main Caproni page.


  1. 14 French C.E.P.1 B2s were built, but they probably did not see action.[2]
  2. In the C.E.P.1, 1×130hp Canton-Unné + 2×80hp Le Rhône.
  3. French C.E.P.1: 110 km/h (68 mph)[4]-121 km/h (75 mph)[3]; 1,000 m (3,280 ft) in 13:00[4], 2,000 m (6,560 ft) in 26:00[4]; 7:00 endurance.[4][3]
  1. 1.0 1.1 Munson, p.156.
  2. 2.0 2.1 Davilla, p.133.
  3. 3.0 3.1 3.2 Ferry'14, p.70.
  4. 4.0 4.1 4.2 4.3 Davilla, p.129.
  • Dr. James J. Davilla and Arthur M. Soltan. French Aircraft of the First World War. Flying Machines Press, 1997. ISBN 0-9637110-4-0.
  • Vital Ferry. French Aviation During the First World War. Paris: Histoire and Collections, 2014. ISBN 978-2-35250-370-5
  • Kenneth Munson, Bombers: Patrol and Reconnaissance Aircraft, 1914-1919. New York: The MacMillan Company, 1968, Blandford Press Ltd. ISBN 978-0753721711