PZL M28 Skytruck

The Antonov An-28 was the winner of a competition against the Beriev Be-30 for a new light passenger and utility transport for Aeroflot's short haul routes, conceived to replace the highly successful An-2 biplane.

Commonalities with the An-14 include a high wing layout, twin fins and rudders, but it differs in having a reworked and longer fuselage, with turboprop engines.

The basic variant, not differing from the Soviet one, was designated PZL An-28 and was powered with PZL-10S (licence-built TVD-10B) engines.

The plane was next developed by the PZL Mielec into a westernised version powered by 820 kW (1100shp) Pratt & Whitney PT6A-65B turboprops with five-blade Hartzell propellers, plus some western (BendixKing) avionics (a distinguishing feature are exhaust pipes, sticking out on sides of engine nacelles).

Apart from the Skytruck, PZL Mielec developed a family of militarized light transport and maritime reconnaissance planes for the Polish Air Force and Polish Navy in the 1990s, with original PZL-10S engines, named PZL M28B in the Air Force and Bryza in the Navy.

[1] Sikorsky's current owner, Lockheed Martin, has marketed it to the governments of Indonesia, Jordan, Poland, Venezuela, Vietnam, the U.S. and commercial operators.

Split equally between commercial and military applications, it competes with the Viking Air Twin Otter, the Let 410 and the Dornier 228.

[1] The M28 is a twin-engined high-wing strutted monoplane with an all-metal airframe, twin vertical fins and a tricycle fixed landing gear.

[1] Aerodynamically deployed leading edge slats when approaching stall speed enable a 64 kn (119 km/h) low stall speed and while the certification landing field is 1,640 ft (500 m), PZL has demonstrated landing in 512 ft (156 m).

The Antonov An-28 first flew in 1969; it is produced by PZL Mielec as the M28 since 1984
Strutted high-wing, twin vertical fins and tricycle landing gear
M28 with underbelly luggage pod
C-145A of AFSOC
M28B Bryza 1R with underside radome
M28B Bryza 1RM bis
PZL M28 operators (civil in pink)