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OS 39400 GF40 GASOLINE FOUR STROKE ENGINE W/F-6040 SILENCER

$859.95
SKU:
39400

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Product Description

This is a four stroke engine whose exhaust note matches scale models.
Quick response and torque feeling of four stroke engine suit aerobatic and sport models too.

Mounting bolt pattern is the same as O.S. GT33 and it is easily installed in the existing models.
(The distance between mounts and drive hub face is the same as the GT33.)

The same fuel for two stroke engine can be used. (oil mix ratio 25:1 ~50:1)

New special carburetor has been developed in collaboration with Walbro.

New compact and light weight special ignition module has been developed.

Convenient choke rod guide is integrated with backplate.

PCV (Positive Crankcase Ventilation) system is employed, which prevents model and environment getting
dirty without emitting blow-by gas and oil waste.

  • Offers traditional 4-stroke benefits with the ease and economy of a gasoline engine.
  • Quick, powerful response makes it an ideal choice for aerobatic as well as scale models.
  • Perfect for scale aircraft, with a deeper exhaust note that mimics the sound of full-size aircraft.
  • Features the GT33’s mounting bolt pattern and mount-to-drive hub distance.
  • Outstanding fuel economy — runs on a mix of engine oil and standard gasoline.
  • Rear-mounted carb designed by O.S. & Walbro®.
  • Lightweight ignition module accepts NiCd, NiMH, LiPo or LiFe battery power.
  • Muffler and integral backplate mount included.
  • Backplate features an integral choke rod guide.
  • PCV (Positive Crankcase Ventilation) system recirculates blow-by gas and oil waste for a cleaner engine and environment.

Mounting bolt pattern is the same as O.S. GT33

Ignition module IG-05
PCV(Positive Crankcase Ventilation)System
 
New special carburetor
F-6040 Silencer
Choke rod guide

SPECIFICATIONS:

  • Displacement: 39.96cc (2.44cu.in)
  • Bore: 40mm (1.57in)
  • stroke: 31.8mm (1.25in)
  • Practical RPM: 1,800-9-000
  • Engine weight: 1170g (41.27oz)
  • Silencer weight 113g (3.99oz)
  • Ignition module weight: 95g (3.35oz)
  • Output: 3.8ps (3.75hp)/8,600rpm

Product Videos

Spotlight: O.S. GF40 4-Stroke Gasoline Engine (01:41)
Ideal for aerobatic or scale aircraft, the O.S. Engine 4-stroke GF40 gasoline engine offers high torque, realistic scale sound, excellent fuel economy, and the superb fit and finish O.S. is famous for. The GF40 has the same firewall mounting system as the GT33, and its choke rod guide has been integrated with the backplate for simplified installations. A Positive Crankcase Ventilation (PCV) system controls blow-by gas and oil waste to keep your model, and the environment, cleaner. Other features include a special Walbro® carburetor and a compact, lightweight ignition module. The GF40 comes with muffler, spark plug and a 2-year limited warranty. Learn more about the O.S. GF40 Engine by visiting its product page at http://www.osengines.com/engines-airplane/osmg0800/index.html Join O.S. on Facebook! Go to http://www.facebook.com/osengines to interact with O.S. product experts and modelers like you. OSMG0800 Displacement: 2.438 cu in (39.96 cc) Bore: 1.57 in (40 mm) Stroke: 1.251 in (31.8 mm) Practical RPM Range: 1,800-9,000 Engine Weight: 42.3 oz (1200 g) Muffler Weight: 4.0 oz (113 g) Ignition Module Weight: 3.4 oz (95 g) Includes: silencer, Walbro carb, ignition module Recommended Props: 18 x 6W, 18 x 10, 18 x 12, 20 x 8W
  • Spotlight: O.S. GF40 4-Stroke Gasoline Engine
    Ideal for aerobatic or scale aircraft, the O.S. Engine 4-strok...

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