Limbach Engine L550E | Solid state magneto ignition | 37kW (50HP) at 7500rpm
Description
Versatile and Efficient, The Advanced Design of the Limbach Engine L550E
The Limbach Engine L550Eย is a lightweight and reliable four-cylinder, air-cooled engine designed for UAVs and light aircraft applications.ย This UAV Engine features a compact, horizontally opposed design and versatile compatibility making it ideal for pusher and tractor configurations, providing efficient, high-powered performance with minimal maintenance requirements.
Key Specifications:
- Power Output: 37 kW (50 HP) at 7500 RPM, delivering a high power-to-weight ratio for versatile applications
- Engine Type: Four-cylinder, horizontally opposed, air-cooled, two-stroke engine with mixture lubrication
- Bore and Stroke: 66 mm (2.60 in) bore and 40 mm (1.57 in) stroke
- Displacement: 548 cmยณ (33.44 cubic inches) for optimized power and fuel efficiency
- Crankcase: Made from durable aluminum casting
- Crankshaft: Drop-forged, seven-piece design for durability and reliability
- Pistons: Cam-ground, cast aluminum alloy for efficient operation
- Cylinders: Cast aluminum with silicone carbide-coated barrel for enhanced wear resistance
- Ignition System: Solid-state magneto ignition with shielded ignition option available
- Firing Order: Two opposing cylinders fire simultaneously with a 180-degree offset for balanced operation
- Carburetors: Equipped with four diaphragm all-position carburetors for consistent fuel delivery
- Weight: Dry weight approximately 16 kg, keeping aircraft light without sacrificing power
- Fuel Compatibility: Compatible with AVGAS 100LL or 90 RON fuel, mixed with oil at 1:25 or 1:50 (synthetic oil preferred)
- Optional Equipment: Additional heat sinks for cylinders (+1.2 kg), shielded ignition system, 24V starter (0.3 kW), 28V generator (1200W), and exhaust stacks
The Limbach L550E engine provides reliable power with low maintenance requirements, making it an excellent choice for UAVs and light aircraft applications that demand a balance of performance, durability, and adaptability.
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Specifications
Specifications of Limbach Engine L550E
| Performance | 37 kW (50 HP) at 7500 rpm |
| Bore | 66 mm / 2.60 inch |
| Stroke | 40 mm / 1.57 inch |
| Displacement | 548 cm3 (33.44 cu. inches) |
| Crankcase | Aluminum casting |
| Crankshaft | Drop forged, seven piece |
| Pistons | Cam ground, casted aluminum alloy |
| Cylinders | Casted aluminum, silicone carbide coated barrel |
| Ignition system | Solid state magneto ignition |
| Firing Order | Two opposing cylinders simultaneously, 180 deg. offset |
| Carburators | 4 diaphragm all position carburators |
| Starter | without |
| Generator | without |
| Dry weight approx. | 16 kg |
| Fuel | AVGAS 100LL or 90 RON mixed with a suitable oil to the ratio of 1:25 or 1:50 (with synthetic oil) |
| Optional Equipment | Cylinders with additional heat sinks (+ 1.2 kg) Shielded ignition system Exhaust stacks Starter 24 V, 0.3 kW Generator 28 V, 1200 W |
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