Parma Technik Mikron
Walter Mikron III
The Walter Mikron is a four-cylinder, aircooled, inverted straight engine for aircraft, produced in Czechoslovakia. Since 1999, the engine was again being produced by Parma Technik of Luhačovice, mostly used on ultralight and LSA aircraft.
Initial production engines producing 37 kW (50 hp).
The Mikron II, released in 1936, had a bore of 88 mm (3.46 in) and displacement of 2.336 l (142.55 cu in), delivering 45 kW (60 hp) at 2,600 rpm max continuous and 46 kW (62 hp) at 2,800 rpm for short periods. After a hiatus in production during the Second World War, production resumed till 1948, when the Micron III went into production.
With a displacement of 2.44 l (148.90 cu in), it produces 48.5 kW (65.0 hp) at 2,600 rpm.
Mikron M IIIAE
New improved version of the Mikron 56 kW (75 hp) at 2,750rpm for 5 minutes, max continuous power of 51 kW (69 hp) from 2.44 l (148.90 cu in), bore 90 mm (3.54 in), stroke 96 mm (3.78 in), dry weight 69 kg (152.12 lb)
60 kW (80 hp) at 2,800rpm from 2.7 l (164.76 cu in), bore 93.3 mm (3.67 in), stroke 96 mm (3.78 in).
Licenced Walter Mikron, 60 hp
Avions Fairey Belfair
Avions Fairey Junior
Bücker Bü 180
Johansen CAJO 59
L-13 SE Vivat
L-13 SW Vivat
Skandinaviska Aero BHT-1 Beauty
Type: 4-cylinder inverted air-cooled inline
Bore: 88 mm (3.46 in)
Stroke: 96 mm (3.78 in)
Displacement: 2.336 l (142.6 cu in)
Length: 804 mm (31.65 in) with starter
Width: 342 mm (13.46 in) with fuel pump
Height: 635 mm (25.00 in) with fuel pump
Dry weight: 61 kg (134.48 lb) dry
Valvetrain: One intake and one exhaust valve per cylinder operated by pushrods and rockers
Fuel system: 1 Claudel-Hobson carburettor
Fuel type: 73 octane gasoline
Oil system: Pressure fed, dry sump
Cooling system: Air-cooled
Starter: 1x Walter mecano 4 hand starter
Power output: 45 kW (60 hp) at 2,600 rpm continuous, 46 kW (62 hp) at 2,800 rpm maximum for short periods
Compression ratio: 6:1
Power-to-weight ratio: 0.8 kW/kg (0.5 hp/lb)