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The Limbach L1700 is a series of type certified German aircraft engines, designed and produced by Limbach Flugmotoren of Königswinter for use in light aircraft and motorgliders.[1]

Limbach L1700
Type	Aircraft engine
National origin	German
Manufacturer	Limbach Flugmotoren
Major applications	Fournier RF 5 Schleicher ASK 16 SZD-45 Ogar
Produced	1971-present

The series were originally designated as the SL1700 under its former certification and was changed to L1700 by company Service Bulletin no. 17.[2]

Design and development

The L1700 is a four-cylinder four-stroke, horizontally-opposed air-cooled, gasoline direct-dive engine design, based upon the Volkswagen air-cooled engine. It employs a single magneto ignition, one carburettor, is lubricated by a wet sump and produces 50 kW (67 hp) at 3600 rpm.[1][3]

The L1700 was type certified by the European Aviation Safety Agency on 4 August 2006. The first engines in the series had originally been certified by the German Luftfahrt-Bundesamt (LBA) on 6 December 1971.[2]

Variants

L1700 EA

Version that puts out 44 kW (59 hp) for takeoff and 41 kW (55 hp) continuously.[3]

L 1700 EB

Version that puts out 53 kW (71 hp) for takeoff and 48 kW (64 hp) continuously.[2]

L1700 EO/EC

Version that puts out 50 kW (67 hp) for takeoff and 44 kW (59 hp) continuously.[1][3]

L 1700 ED

Version that puts out 41 kW (55 hp) for takeoff and 39 kW (52 hp) continuously.[2]

Applications

Specifications (L1700 EO/EC)

Data from World Directory of Leisure Aviation 2011-12[1]

General characteristics

• Type: Four-cylinder, four stroke aircraft engine
• Bore: 88 mm (3.5 in)
• Stroke: 69 mm (2.7 in)
• Displacement: 1,680 cc (102.5 cu in)
• Length: 617 mm (24.3 in)
• Width: 770 mm (30.3 in)
• Height: 415 mm (16.3 in)
• Dry weight: 73 kg (160.9 lb)

Components

• Fuel type: 98 RON octane unleaded gasoline or 100 LL Avgas
• Cooling system: air

Performance

• Power output: 50 kW (67 hp) for takeoff, 44 kW (59 hp) continuously
• Compression ratio: 8.0:1

See also

Related lists

• List of aircraft engines

References

External links

• Official website

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