Rogožarski AZR

The Rogožarski AŽR (Serbian Cyrillic:Рогожарски АЖР) was a single-engined, two-seat biplane aircraft designed as a trainer in Yugoslavia before World War II.

It was equipped with a seven-cylinder Walter Castor air-cooled radial engine of 240 hp and a wooden double-bladed propeller.

[2][3] After the completion of factory tests, the aircraft was examined by the Yugoslav Royal Air Force Commission but it did not allow mass production due to a number of perceived shortcomings in the machines' handling.

This did not happen, Rogozarski withdrew from aircraft design, the prototype was registered as a civilian plane and used by the factory.

In the meantime, the economic situation was such that the AŽR was standing in its hangar, waiting for better days; despite bank loans, there was a distinct lack of orders and the company went bankrupt in 1933.

A Walter Castor engine that was installed in the Rogozarski AZR