Caproni CH.1

Caproni

Industry	Aerospace
Founder	Antonio Chiodi
Headquarters	Italy

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The Caproni CH.1 was a prototype single-seat biplane fighter developed in Italy, with only one unit ever constructed in 1935.

Design

In 1934, Antonio Chiodi initiated the design of a new single-seat fighter as a private project under the Caproni company. The resulting Caproni CH.1—where "CH" denotes "Chiodi"—featured a streamlined single-bay biplane configuration crafted entirely from metal, covered with fabric, and equipped with wings of equal length. The landing gear included aerodynamic fairings (spats). The pilot's cockpit was enclosed beneath a canopy that slid backward to open.

Originally, Chiodi planned to install a Gnome-Rhône 14Kfs Mistral Major 14-cylinder radial engine delivering 581 kW (779 hp) at an altitude of 4,750 meters (15,584 feet). However, the prototype was ultimately powered by a Piaggio Stella P.IX R.C.40, a nine-cylinder radial engine rated at 417 kW (559 hp) at 4,000 meters (13,123 feet), which drove a three-bladed variable-pitch propeller.

The intended weaponry consisted of two fixed forward-firing 7.7-millimeter (0.303-inch) Breda-SAFAT machine guns synchronized to fire through the propeller arc.

Operational history

The CH.1’s maiden flight was piloted by Chiodi himself in May 1935. Following initial company evaluations, the Regia Aeronautica (Italian Royal Air Force) conducted their own trials at Guidonia Montecelio during July and August of the same year. Despite being equipped with an engine less powerful than originally intended, the aircraft demonstrated an impressive climb rate.

Testing concluded when the prototype overturned during landing in August 1935, sustaining damage. The Regia Aeronautica chose not to proceed with production orders, resulting in no additional units being manufactured.