The Bauer BAD-12 Gyrotrainer is a Czech autogyro, designed and produced by Bauer Avion of

Prague Prague ( ; cs, Praha ; german: Prag, ; la, Praga) is the capital and largest city in the Czech Republic, and the historical capital of Bohemia. On the Vltava river, Prague is home to about 1.3 million people. The city has a temperate ...

. The aircraft is supplied as a complete ready-to-fly-aircraft.Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 177. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X

Design and development

The BAD-12 Gyrotrainer features a single main rotor, a two seats in tandem open cockpit with a windshield,

tricycle landing gear Tricycle gear is a type of aircraft undercarriage, or ''landing gear'', arranged in a tricycle fashion. The tricycle arrangement has a single nose wheel in the front, and two or more main wheels slightly aft of the center of gravity. Tricycle ...

with wheel pants, a triple tail and a four-cylinder, air and liquid-cooled,

four-stroke A four-stroke (also four-cycle) engine is an internal combustion (IC) engine in which the piston completes four separate strokes while turning the crankshaft. A stroke refers to the full travel of the piston along the cylinder, in either direct ...

, dual-ignition Rotax 912ULS engine in

pusher configuration In an aircraft with a pusher configuration (as opposed to a tractor configuration), the propeller(s) are mounted behind their respective engine(s). Since a pusher propeller is mounted behind the engine, the drive shaft is in compression in n ...

. The

turbocharged In an internal combustion engine, a turbocharger (often called a turbo) is a forced induction device that is powered by the flow of exhaust gases. It uses this energy to compress the intake gas, forcing more air into the engine in order to pr ...

Rotax 914 The Rotax 914 is a turbo-charged, four-stroke, four-cylinder, horizontally opposed aircraft engine with air-cooled cylinders and water-cooled cylinder heads. It is designed and built by the Austrian company BRP-Powertrain, owned by Bombardier ...

and Subaru EJ22 are optional engines. The aircraft

fuselage The fuselage (; from the French ''fuselé'' "spindle-shaped") is an aircraft's main body section. It holds crew, passengers, or cargo. In single-engine aircraft, it will usually contain an engine as well, although in some amphibious aircraft t ...

is made from tubing, while the

cockpit fairing An aircraft fairing is a structure whose primary function is to produce a smooth outline and reduce drag.Crane, Dale: ''Dictionary of Aeronautical Terms, Third Edition'', page 206. Aviation Supplies & Academics Inc, Newcastle Washington, 1997. ...

is composite. The main rotor has a diameter of Its . The BAD-12 has an empty weight of and a gross weight of , giving a useful load of . The tricycle landing gear is supplemented with a small tailwheel to prevent dragging the tail on take-off. The tailboom has a bend in it to permit the installation of larger and more efficient propellers.

Variants

;BAD-12 Gyrotrainer :Base open cockpit model. ;BAD-12 Gyrotrainer C :''Cabine'' model with a fully enclosed fairing.

Specifications (BAD-12 Gyrotrainer)

References

External links

*{{Official website, http://www.baueravion.cz/en/virniky-bad12/ 2000s Czech sport aircraft Single-engined pusher autogyros