Not to be confused with the Elzer flying wing design of the same AP number.

The Kriedeprinz Airplane Company model 3 (AP-36-01) was a project conceived on mid-1922 for a United States Army Air Service fighter that would have been powered by the Houston IV-1190 inline engine. The design was cancelled in favor of the XPW-5 (AP-35-0N, model 2) before any were built.

Development

In 1921, the USAAS anounced a competition for an any-nation fighter that would be powered by engines of more than 350 horsepower.
Albrecht Naslund, a Swedish-German national who leads a design bureau in Malmo entered the competition with the Naslund Type 28, a fighter that would be powered by a Hispano engine.

The Naslund bureau became the Kriedeprinz (Chalk Prince) Airplane Company on 1920, redesignated as the Model 3.

However, the ban of the Spandau machine gun for American use to the Versailles treaty (Naslund is German-Swedish) and the little chance of possibility to obtain such powrerful engine made the model 3 stuck in the drawing board unlike the model 1.

Design

The Proposal 36-01 is a low wing cantilever fighter monoplane that is powered by the Houston Engines XIV-1190 inline vee engine producing 400 horsepower and would be equipped by a modified Spandau machine guns.

Its landing gear design is the same with the model 1 (NASC Type 25). Its propeller diameter was large of the date for a fighter, mainly for to obtain more torque and air and also speed.

Specifications

Maximum speed: 279 km/h TAS