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Ephil - 123cc Twin - PRO - Gasoline Engine w/ E-Starter - 123cc-T PRO
The EPHIL 123cc-T Pro is a powerhouse twin-cylinder gasoline engine delivering over 12 HP of smooth, reliable thrust. Designed for large-scale RC aircraft, it comes equipped with electronic ignition, premium spark plug, and an integrated starter — allowing effortless, hands-free starts right from your transmitter or starter switch.
Built for serious flyers who demand precision, torque, and easy operation.
Usage
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Perfect for giant-scale fixed-wing models and aerobatic aircraft in the 100–120 cc class.
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Static thrust: 26.8 kg (≈59 lb) @ 100 m altitude — serious power for heavy setups.
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Compatible propellers: 26×10 | 26×12 | 27×10 | 28×10.
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Runs on 30:1 gasoline / 2-stroke oil mix.
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Ignition Voltage: 6 – 14 V.
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Starter option offers quick, safe engine activation without flipping the prop — ideal for pilots who prefer convenience and consistency.
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Ensure a strong firewall mount, good cooling airflow, and vibration isolation during installation.
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Observe a proper break-in period with rich fuel settings and moderate throttle cycles to maximize engine life.
Technical Specifications
Model: 123cc-T Pro
Displacement: 123 cc (7.5 cu in)
Performance: 12.2 HP
Speed Range: 1500 – 6650 RPM (Tested with 27×10 propeller)
Bore: 47 mm (1.85 in)
Stroke: 35 mm (1.38 in)
Compression Ratio: 8 : 1
Static Thrust:
26.8 kg @ 100 m altitude (59 lb @ 328 ft)
23.8 kg @ 1800 m altitude (52.5 lb @ 5900 ft)
Lubrication Ratio: 30 : 1 (Fuel : 2-stroke motor oil)
Ignition Voltage: 6 – 14 V
Spark Plug Type: CM6 Iridium (supplied)
Recommended Propellers: 26×10 | 26×12 | 27×10 | 28×10
Component Weights:
Main Engine: 2677 g
Muffler Set (L & R + Screws): 228 g
Aluminum Standoff Set (+ Screws): 130 g
Spark Plugs (×2 CM6): 13.5 g each
CDI (Ignition): 173 g
Starter: 253 g
ESC: 36 g
Total Weight: 3524 g (7.77 lb)