Limbach Engine L1700E0/EC, L 2000E0/EC | Four Cylinder, Horizontally Opposed Air Cooled Engine

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Description

Versatile and Efficient, The Advanced Design of the Limbach Engine L1700E0/EC, L 2000E0/EC

The Limbach Engine L1700E0/EC, L 2000E0/EC are reliable, four-cylinder, horizontally opposed, air-cooled engines, designed with single magneto ignition and wet sump pressure lubrication. This UAV Engine is Ideal for small aircraft and UAV applications, these engines deliver dependable power with efficient fuel consumption and simple maintenance.

Specifications
L1700 E0 / EC
  • Maximum Power (5 min): 68 HP (50 kW) at 3600 RPM
  • Continuous Power: 60 HP (44 kW) at 3200 RPM
  • Bore & Stroke: 88 mm (3.46 in) x 69 mm (2.71 in)
  • Displacement: 1680 cmยณ (102.52 cubic inches)
  • Compression Ratio: 8:1
  • Fuel Consumption: Approximately 10 liters/hour
L2000 E0 / EC
  • Maximum Power (5 min): 80 HP (59 kW) at 3400 RPM
  • Continuous Power: 70 HP (51 kW) at 3000 RPM
  • Bore & Stroke: 90 mm (3.54 in) x 78.4 mm (3.09 in)
  • Displacement: 1994 cmยณ (121.68 cubic inches)
  • Compression Ratio: 8.4:1
  • Fuel Consumption: Approximately 12 liters/hour
General Features
  • Ignition: Slick 4330 magneto, LIMBACH harness
  • Spark Plugs: LIMBACH LB-N41.0 with 0.5 mm electrode spacing
  • Firing Order: 1 – 3 – 2 – 4, with 30ยฐ BTDC firing point
  • Carburetor: Zenith 150 CD-3
  • Fuel Requirements: 98 RON (Unleaded) or AVGAS 100LL
  • Air Cleaner: LIMBACH
  • Fuel Pump: APG-LIMBACH mechanical pump
  • Starter: 12V, 1.1 kW with solenoid
  • Generator: 14V, 33A or 55A options
  • Oil System: Max oil pressure 4 bar, min 1 bar at 2500 RPM, with a 2.5-liter capacity
  • Temperature Limits: Max oil temperature 120ยฐC, min 50ยฐC; max cylinder head temperature 250ยฐC
  • Propeller Drive: Direct, anti-clockwise with propeller hub options (E01/EC1 for variable pitch, E02/EC2 for fixed pitch)
  • Dry Weight: Approx. 74 kg (L2000 E0), 73 kg (L1700 E0)
Both engines come with LBA Type Certificates (JAR 22-H): No. 4582 for L1700 E0/EC and No. 4597 for L2000 E0/EC. The Limbach L1700 and L2000 provide solid, reliable power for general aviation and UAV applications, with consistent fuel efficiency and straightforward operation.

 

L 1700 e0. Ec l 2000 e0. Ec. 1 - limbach engine l1700e0/ec,l 2000e0/ec - motionew - 1L 1700 e0. Ec l 2000 e0. Ec. 2 - limbach engine l1700e0/ec,l 2000e0/ec - motionew - 2L 1700 e0. Ec l 2000 e0. Ec. 3 - limbach engine l1700e0/ec,l 2000e0/ec - motionew - 3 L 1700 e0. Ec l 2000 e0. Ec. 4 - limbach engine l1700e0/ec,l 2000e0/ec - motionew - 4 L 1700 e0. Ec l 2000 e0. Ec. 5 - limbach engine l1700e0/ec,l 2000e0/ec - motionew - 5 L 1700 e0. Ec l 2000 e0. Ec. 6 - limbach engine l1700e0/ec,l 2000e0/ec - motionew - 6

For a comprehensive reading of related products, please visit the Motionew website.

Limbach L1700E0/EC and L2000E0/EC Engines โ€“ FAQ

1. What are the key technical specifications of these engines?
Both engines are four-cylinder, horizontally opposed, air-cooled gasoline engines designed for UAVs and small aircraft.

  • L1700E0/EC: Maximum power 68 HP (50 kW) at 3,600 rpm, continuous power 60 HP (44 kW) at 3,200 rpm, displacement 1,680 cmยณ, compression ratio 8:1, fuel consumption approximately 10 liters per hour.

  • L2000E0/EC: Maximum power 80 HP (59 kW) at 3,400 rpm, continuous power 70 HP (51 kW) at 3,000 rpm, displacement 1,994 cmยณ, compression ratio 8.4:1, fuel consumption approximately 12 liters per hour.

2. What design features and construction materials are used?
Both models use aluminum alloy crankcases, forged steel crankshafts, and aluminum pistons with reinforced cylinder barrels for durability and low weight.
They employ wet sump pressure lubrication and single magneto ignition, ensuring reliable operation and simplified maintenance.

3. What ignition and fuel systems are integrated?
The engines use the Slick 4330 magneto ignition system with Limbach high-performance spark plug harnesses for consistent ignition under varying loads.
Each engine is equipped with twin carburetors and supports AVGAS 100LL or MOGAS 95 fuel types.
The system ensures efficient fuel atomization and optimal combustion across the full RPM range.

4. What performance advantages do these engines offer for UAV applications?
Both the L1700 and L2000 deliver high reliability, smooth operation, and balanced power-to-weight ratios, making them suitable for long-endurance UAVs, fixed-wing aircraft, and aerial mapping platforms.
Their air-cooled configuration reduces mechanical complexity, while the magneto ignition system ensures independent, battery-free ignition capability.

5. What purchasing and payment options are available?
Pricing for both engines is available upon request. MotioNew accepts bank transfers, PayPal, and major credit cards for both retail and OEM clients.
Custom configurations and bulk purchases can be arranged for UAV manufacturers and system integrators.

6. What documentation and compliance materials are provided?
Each engine is supplied with technical manuals, wiring and installation guides, performance data sheets, and maintenance documentation.
Both models comply with civilian UAV export standards and are intended for commercial and research applications only.
Use for military or warfare purposes is strictly prohibited. MotioNew provides after-sales technical support, spare parts, and operational training for long-term reliability.

Specifications

Specifications

Specifications of Limbach Engine L 1700 E0 / EC and L 2000 E0 / EC

L 1700 E0 / EC
Ma xi mum HP (5 min) 68 hp / 50 kW / 3600 rpm
Continous HP 60 hp / 44 kW / 3200 rpm
Bore 88 mm / 3.46 inch
Stroke 69 mm / 2.71 inch
Displacement 1680 cm3/ 102.52 cub. in.
Compression ratio 8 : 1
L 2000 E0 / EC
Maximum HP (5 min) 80 hp / 59 kW / 3400 rpm
Continous HP 70 hp / 51 kW / 3000 rpm
Bore 90 mm / 3.54 inch
Stroke 78.4 mm / 3.09 inch
Displacement 1994 cm3/ 121.68 cub. in.
Compression ratio 8.4 : 1
General
Magneto Slick 4330
Harness LIMBACH
Spark plugs LIMBACH LB-N41.0
Electrode spacing 0.5 mm
Firing order 1 – 3 – 2 – 4
Firing point 30ยฐ BTDC
Carburator Zenith 150 CD-3
Fuel min. octane 98 RON (Unleaded) or AVGAS 100LL
Air cleaner LIMBACH
Mechanical fuel pump APG-LIMBACH
Starter with solenoid 12 V – 1.1 kW
Generator 14 V – 33 A or 14 V – 55 A
Oil pressure max. 4 bar; min. 1 bar at 2500 rpm
Oil temperature max. 120ยฐC; min. 50ยฐC
Oil capacity 2.5 ltrs
Cylinder head temp. max. 250ยฐC
Tachometer drive mechanical
Propeller drive direct, anti-clockwise
Propeller hub E01/EC1 for variable pitch
Dry weight approx. E02/EC2 for fixed pitch
L 2000 E0: 74 kg
L 1700 E0: 73 kg
Fuel consumption should be individually established during flight tests, however the average fuel consumption is approx:
10 ltrs/hr L 1700 E0 / EC
12 ltrs/hr L 2000 E0 / EC
LBA Type Certificate No 4582 (JAR 22-H) L 1700 E0 / EC
4597 (JAR 22-H) L 2000 E0 / EC

 

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Specification:

Engine Power

50kW

,

59kW

,

68HP

,

80HP

Engine Weight

73kg

,

74kg

Engine Displacement

1680cm3

,

1994cm3

Engine Bore

88mm

,

90mm

Engine Stroke

69mm

,

78.4mm