RC Airplane Engine
S08512662
O.S. ENGINES

Remote-controlled O.S. 25 FX II thermal engine

O.S. 25 FX II | Scientific-MHD
O.S. 25 FX II | Scientific-MHD
O.S. 25 FX II | Scientific-MHD
O.S. 25 FX II | Scientific-MHD
  • -€20.00
  • Promotion

2-stroke engine for 4.07 cc airplane.

The O.S. 25FX II is a powerful 2-stroke glow engine with side exhaust. The OS MAX 25FX II is the ideal choice for .25 size sport, scale, and aerobatic models. The 25FX II comes equipped with the proven 21L carburetor, ensuring perfect throttle response and easy tuning.

The two-piece muffler type 892 is included in the delivery.

The muffler outlet can be oriented according to the model and engine installation position.

Save €20.00
€169.95 €149.95 VAT included
O.S. 25 FX II | Scientific-MHD

Remote-controlled O.S. 25 FX II thermal engine

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Remote-controlled O.S. 25 FX II thermal engine

€149.95 €169.95
Fast shipping Via Chronopost 24H Via DPD 24/48H Colissimo 48/72H
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Features

  • 2-stroke thermal engine with silencer 892
  • Carburetor 21L
  • Precise throttle response
  • Operation with low vibrations
  • Simple adjustment

Technical Data

  • Displacement: 4.07 cc
  • Approx. power: 0.62 kW (0.84 PS) at 18,000 rpm
  • Speed range: 2,500 – 19,000 rpm
  • Bore: 18 mm
  • Stroke: 16 mm
  • Weight: 260 g
  • Carburetor: 21L
  • Shaft thread: 1/4"-28 UNF
  • Length to hub: approx. 75.6 mm
  • Width: approx. 46 mm
  • Height: approx. 75.5 mm
  • Mounting hole spacing: 15 mm (length) / 38 mm (width)
  • Fixing hole diameter: 3.2 mm
  • Recommended propellers:
    • Sport: 9x5, 9x6, 9.5x5, 10x5
    • Acrobatics: 9x6, 9.5x5
Motor use
Planes
Engine displacement
2 stages 0-7.5cc
Engines
Thermal
Level of use/difficulty
Thermal
Product types
Motors and variators for radio -controlled models
States
Promotion

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