Updated: 11-Apr-2022
Sometimes Koenig
In the 1990s König Motorenbau made two-stroke, radial engines with 3 and 4 cylinders in geared and gearless versions, for ULM.
“SC-430, gearless”
-The gearless SC-430 with electric starter has 3 radial cylinders and gives 24 CV. It displaces 430 cc.
“SC-430 front schematic drawing”
-The SD-570 is a 4-cylinder radial or "X-4" that gave 28 CV with a displacement of 570 cc.
“SD-570 side schematic drawing”
-It had two cylinders at the front and two at the rear, possibly the crankshaft had two crankpin journals.
-The major model is the SF-930, a 4-cylinder in "X" as well. It came out in 1985. Its displacement was 930 cc. and it gave 48 CV at 4,000 rpm.
“SD-570, front”
”SF-930”
-König had 4-stroke engines under study.
From Appendix 12: Below we show a new color photo of the 3 cylinder radial.
“3-cylinder engine for ULM”
-It has belt-reduction gear, an electric starter, and single ignition although it has one coil for each cylinder (spark plug).
Engines of KÖNIG MOTORENBAU
Model: SC-430
Arquitecture: 2-stroke3-cylinder Radial
Cooling:
Total Displacement: 430 cc
Bore / Stroke:
Power: 24 CV
Weight:
"König SC-430, ungeared"
Model: SD-570
Arquitecture: 4-cylinder X-engine
Cooling:
Total Displacement: 570 cc
Bore / Stroke:
Power: 28 CV
Weight:
"König SD-570, front view drawing"
Model: SF-930
Arquitecture: 4-cylinder X-engine
Cooling:
Total Displacement: 930 cc
Bore / Stroke:
Power: 48 CV @ 4000 rpm
Weight:
"König SF-930"