Avia B.534 IV. version
Katalog Nummer: 92070
The prototype of B-534 flew for the first time on 25 May 1933. The first procurement order for the B-534 was issued from the Ministry of National Defence to the Avia Company on 17 July 1934 and was for 147 aircraft’s. The first machines were delivered to the Air Force in autumn of 1935.
The Ministry of National Defence ordered the next, second procurement batch of 46 B-534’s in 1936. The first 26 belonged to version 3 and were received by the units in March and April 1937. Before the end of 1936 the Ministry of National Defence awarded the third, largest order for the B-534. The contract was originally for 134 aircraft (s/n B-534.194 to B-534.327), but owing to the growing German menace it was increased by the fourth contract for further 50 machines (s/n B-534.328 to B-534.377). The last, fifth procurement order, placed in August 1938 was for 68 machines (s/n B-534.378 to B-534.445).