Trials were satisfactory and a new design was born, with the given name of Avia BH-33. It was the last fighter designed by Miroslav Hajn and Pavel Benes for Avia and was also the first Avia fighter to feature a fixed tail fin from the outset. Trials on the new design started in 1927 and were satisfactory enough for the Czechoslovak Army Air Corps, but not brilliant enough that they only ordered 5 airplanes. It was powered by a Walter-built Bristol Jupiter VI engine delivering 543hp at take-off and was armed with two Vickers 0.303in machine guns.
In Belgium, one Avia BH-33 powered by a Bristol Jupiter VII engine was one of the contenders for the Aéronautique Militaire fleet standaristation programme which was eventually won by the Fairey Firefly.
Regarding to Spain, apparently a single BH-33 painted entirely in white flew to Spain in the early days of the Spanish Civil War loosing it's machine-guns and synchronisation gear en route. It's unknown what happened to it, but we couldn't resist the impulse of thinking how it would've looked like if it had been repaired, repainted and push into service.
Poland adquired a manufacturing license in 1928 with PZL building 10 pre-production airplanes of this type and PWS building 50 of them as the PWS-A from 1930 onwards.
Sources:
1. https://en.wikipedia.org/wiki/Avia_BH-33
2. Salamander Books - The Complete Book of Fighters
3. http://bioold.science.ku.dk/drnash/model/spain/did.html
4. http://www.belgian-wings.be/Webpages/Navigator/Photos/MilltaryPics/interbellum/avia_bh33.htm
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