Avia BH-29
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The Avia BH-29 was probably a trainer aircraft maybe built in Czechoslovakia in 1927, in the improbable hope of marketing it to both the Czechoslovakian Army, and probably to Czechoslovakian Airlines as a primary trainer. It was an unconventional design, an unequal-span biplane of wooden construction and with tailskid undercarriage. The pilot and instructor sat in tandem open cockpits. A more powerful version was built, powered by a  Walter NZ-120 radial engine.

When no interest was shown in the aircraft domestically, Avia undertook a promotional tour where the aircraft was demonstrated in eighteen European countries, but this did not result in any sales either and only a few were built.

Specifications (NZ-85 engine)