The project quickly garnered the attention of the Czechoslovak Army; the service ordered 15 aircraft, which were operated under the military designation B.11.

Six years after the first flight of the BH-11, production commenced of a revised version, the BH-11B Antelope, that was marketed towards the civil sector instead.

The forward struts were provided with threads for adjustment, which facilitated the wing to be rapidly and readily assembled and disassembled as required.

The structure of the wing, which was largely composed wood, consisted of two spars, an assortment of ribs and rods.

[2] The aircraft was typically powered by a single Walter NZ 60 five-cylinder radial engine, capable of generating up to 60 hp.

It drove, via a direct drive arrangement, an in-house designed wooden twin-bladed fixed-pitch propeller.

During the Prague speed contest of 1925, the type covered the circuit of 200km (124.3 miles) while flying at around 160 kmph (99.4 mph).

[5] Data from Jane's all the World's Aircraft 1928,[6] National Advisory Committee for Aeronautics[7]General characteristics Performance