RCGF 50cc Twin Cylinder Gas Engine for RC Airplanes 4.7HP Low Vibration Smooth Power
Hero Section: The Smoothness of a Twin, The Size of a Single
For years, pilots of 50cc-class aircraft had to compromise: accept the harsh vibration and "chainsaw" sound of a single-cylinder engine, or add unnecessary weight to get a twin. The RCGF 50cc Twin changes the game. It brings the prestigious, silky-smooth operation of a horizontally opposed "boxer" engine to the popular 50cc size class. Imagine your Piper Cub or scale warbird taxiing with a deep, rhythmic purr, the airframe steady and vibration-free. This isn't just an engine; it’s the upgrade that brings your scale model to life, creating a flying experience that looks and sounds as real as it gets.
Why Choose the RCGF 50cc Twin?
- Vibration Elimination: The "Boxer" design fires both pistons outward simultaneously, naturally canceling out the heavy vibrations typical of single-cylinder engines. This protects your delicate balsa structure, tightens your screws, and extends the life of your servos.
- Scale Sound & Realism: Nothing beats the sound of a twin. It produces a low-frequency drone that mimics full-scale aviation, making it the perfect choice for warbirds and civilian scale planes where realism is key.
- Compact Power: Delivers a solid 4.7HP in a package that fits inside many cowls designed for single-cylinder engines. You get the multi-cylinder benefits without a massive size penalty.
- Reliability You Can Count On: Equipped with a genuine Walbro carburetor, this engine offers easy starting and a linear throttle curve. Whether you are flying low and slow or performing aerobatics, the power delivery is consistent and trustworthy.
- The Perfect Gift: For the RC pilot who takes pride in their fleet, a twin-cylinder engine is a luxury upgrade. It’s a thoughtful gift that shows you understand their passion for mechanics and flight.
Technical Highlights: Precision Engineering
- Efficient Air Cooling: The dual cylinders feature deep cooling fins that maximize surface area. Combined with the air-cooled crankcase, this design effectively dissipates heat, ensuring the engine runs cool even inside tight cowlings.
- Advanced Ignition: The included DC-CDI system (6-14V) features auto-advance timing, ensuring a stable idle at 1600rpm and smooth transitions throughout the RPM range.
- Durable Build: Constructed with a robust piston valve design and high-quality metal alloys, the RCGF 50cc is built to handle the rigors of gasoline combustion while maintaining excellent compression over time.
Specifications
- Model Type: 2-Stroke Twin Cylinder Piston Valve Gasoline Engine
- Displacement: 50cc (3.05 cu in)
- Configuration: Horizontally Opposed Twin (Boxer)
- Bore x Stroke: 1.34 in (34mm) x 1.13 in (28.6mm)
- Performance: 4.7HP / 8500rpm
- Idle Speed: 1600rpm
- Static Thrust: 24.7 lb (11.2 kg) @ 328 ft (100m) altitude
- Static Thrust: 23.1 lb (10.5 kg) @ 5900 ft (1800m) altitude
- Carburetor: Walbro
- Ignition: DC-CDI (Computer Controlled Auto Advance)
- Power Supply: 6-14V
- Spark Plug: 2 x NGK-CM6
- Lubrication Ratio: 30/1 (Gasoline/Oil)
- Suggested Propellers: 19 x 8, 19 x 10, 20 x 8, 20 x 10
- Engine Weight: 2.6 lb (1181g)
- Total Weight: 3.5 lb (1600g) approx. (Including Mufflers and Ignition)
Usage Scenario: The Scale Masterpiece
It’s a calm evening at the airfield. You are flying a 1/4 scale Cub or a 50cc Mustang. With the RCGF 50cc Twin, the plane doesn't shake violently on the ground. You advance the throttle, and the plane lifts off with a smooth, authoritative sound. As you perform a low flyby, the engine note is deep and pleasant, not high-pitched and whiny. Your fellow pilots admire not just the plane, but the sound. It’s a moment of pure satisfaction, knowing your aircraft is powered by the best.
Important Tips from the Expert
- Propeller Selection: A 20x8 propeller is the ideal all-rounder for this engine, providing good thrust and manageable speed. For faster airframes, try a 19x10.
- Cowl Airflow: Twin cylinders require good airflow management. Ensure your cowl has baffles to direct air over the cylinder fins, and that the air exit is 3 times larger than the intake to prevent overheating.
- Break-In: Use a high-quality synthetic 2-stroke oil at 30/1. Avoid prolonged full-throttle runs for the first gallon to allow the rings to seat properly.
Customer Support
We are dedicated to your flying success. If you have questions about installation, tuning, or maintenance, our expert team is here to help: service@helloworld7.com
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