OS Engines

OS Engines Piston Pin 50 SXH and 50-Hyper

OS engines Piston Pin Retainer 40/46 #24817100

40, 46VF VR

40,46SF

40,46FX

OS Engines Piston Ring , FITS the following engines

OS 32FH 32SXH, 32F,32F-H,32HX

OS Engines Prop Nut 21-61 size #23210007

OS Engines Propeller Washer 61-.90 # OS28009002

This is the ratchet spring that fits many OS Engine Needle Valve Assemblies.

It is used to hold the needle valve in place after adjustment.

OS Engines rear exhaust Adaptor for Tuned pipe 60-95 size, Hanno #27326100

OS Engines Replacement Remote Control Engine Prop Washer OS .46 46 .40 40 AX FX

OS Engines Rotor Slide Valve Guide Screw 10C, 10F, 60U #OS21285220

OS Engines silicone Tubing (H) Set for tuned pipe reso 40-46 # 72105337

OS Engines Thermo Insulator GT15HZ

OS Engines THROTTLE STOP SCREW 2D-7B-FS61

OS Engines Thrust Washer FT160,FS91SDF,91SXH,AX,120AX,SZH

OS Engines Type F (4-Stroke) Glow Plug Med Four Stroke # 71615009

For all four-stroke motors including Saito, OS

OS Engines VALVE ASSEMBLY FR5-300 FT-120II /FR , FF-240 #OS46360010

OS engines WOODRUFF KEY 50SX-H, 61SX-H, RX-H,FS52S, 91SX-H,M SZ, RZ #S27708200

OS engines WOODRUFF KEY 61-90-91 and GT-33 #29008219

OS engines WOODRUFF KEY FS-120,SII,SIII,SE,SP,140RX,FT-160,FF-320 #OS45508200

The GH15HZ is perfect for sport, 3D and scale pilots alike. But that’s only a part of what makes the GT15 super. It also offers superb fuel economy, a pumped carb to deliver fuel dependably, the ease of the IG-05 Ignition module and smooth running without constant adjustments. And since it’s about the same size as most .90 glow engines, it’s an easy retrofit, too.

OS test data shows with a 300cc fuel tank you can achieve an approximately 25 minute long flight!

The GT15HZ, which made its sensational debut as the world's first 15cc gasoline engine exclusively for 700-class helicopters, has been improved and upgraded to the second generation - GT15HZ II. It uses a large machined aluminum heat sink head with deep blue finish. In addition, a machined heat sink is attached to the rear crankcase cover plate to improve cooling performance.

Specification

• Weight: 835g (Engine), 92g (Ignition)
• Displacement: 14.95cc
• Bore: 27.7mm
• Stroke: 24.8mm
• Power Output: 2.8ps (2.76 hp) @ 14,000 rpm
• Practical RPM: 2,000 - 16,000

OS GT15HZ II Petrol with 15HZ Powerboost Pipe

The GH15HZ is perfect for sport, 3D and scale pilots alike. But that’s only a part of what makes the GT15 super. It also offers superb fuel economy, a pumped carb to deliver fuel dependably, the ease of the IG-05 Ignition module and smooth running without constant adjustments. And since it’s about the same size as most .90 glow engines, it’s an easy retrofit, too.

Compact — fits most .90-size helis with only minor modifications.
Offers outstanding fuel economy.
Runs consistently without constant pre-flight adjustments.
O.S./Walbro-developed pumper carburetor ensures consistent performance regardless of attitude, altitude or fuel level.
Features the IG-05 Ignition Module that is designed specifically for helis.
The IG-05 Ignition Module arrives with a straight plug cap for easy installation. It’s compatible with a wide range of battery chemistries, including NiCd or NiMH, LiPo and LiFe packs.

OS test data shows with a 300cc fuel tank you can achieve an approximately 25 minute long flight!

Specs:

• Displacement: 0.912 cu in (14.95cc)
• Bore: 1.091" (27.7mm)
• Stroke: 0.976" (24.8mm)
• Practical RPM: 2,000 - 16,000
• Output: 2.76hp @ 14,000 RPM
• Weight: Engine, 26.4oz (748g), IG-05 Ignition Module, 3.2oz (92g), Power Boost Pipe, 7oz (198g), E-4051 Muffler5oz (144g)
• Carburetor Adjustments; If engine responds sluggishly to increased RPM, turn slow needle right 5° and advance throttle stick gradually If engine hesitates before picking up speed, turn slow needle left 10° to richen mixture
• Gasoline/Oil Mix: 25:1
• Distance/Mounting Hole Centers Same Side: 1.02" (26mm)
• Distance/Mounting Hole Centers Opposite Side: 2.1" (53mm)
• Height/Mounting Tab Bottom to top of Cylinder Head: 3.5" (88mm)
• Height/Crankcase Bottom to top of Cylinder Head: 4.3" (109mm)
• Width at Mounting Tabs: 2.4" (61mm)
• Width of Crankcase below Mounting Tabs: 1.7" (42.5mm)
• Distance between Exhaust Mounting Hole Centers: 1.6" (42mm)
• Length from Center of Engine to Front Bearing: 2" (52mm)
• Length from Backplate to Front Bearing: 3.14" (80mm)
• Length from Center of Engine to end of Crankshaft 3.5" (88mm)
• Length from Backplate to end of Crankshaft: 4.75" (121mm)

Includes:

• O.S. Engines GT15HZ II Engine with CM-6 Spark Plug
• IG-05 Ignition Module
• Power GT15HZ boost pipe
• Two Servo Throttle Arms
• Instruction Manual

Requires:

• Gasoline: Regular unleaded
• 2-Stroke Engine Oil
• Ignition Battery: 4.8-8.4V NiMH, 6.6V LiFe or 7.4V LiPo, at least 1500mAh

OS Max 105HZ-R with Powerboost Pipe Combo

Specifications:

• Displacement: 1.048 cu in (17.17 cc)
• Bore: 1.442 in (29 mm)
• Stroke: 1.024 in (26 mm)
• Practical rpm: 2,000-16,500
• Output: 3.8 hp @ 15,000 rpm
• Weight: 21.03 oz (596 g)

This is our prestige collection engine OS Max 140RX Rare vintage Pattern Aerobatics F3A RC1 Engine
this engine passed the Break in process, it is kept well preserved, due the fact of After-run oil, All rubber parts are lubricated, so therefore no risk of old shelf product

This engine is a perfect match to all RC1-Pattern models, Hanno Prettner models, F3A, RC1/ Pattern up to 2mx2m
Delivered with Header, Box and some spare parts such bearing set, Head and Back shims, Glow plug.

This is our prestige collection engine OS Max 90FSR Rare vintage Pattern Aerobatics F3A RC1 Engine
Engine is BRAND new and in original packaging.

New in box, never started
comes with all accessories (no muffler)

SPECIFICATIONS:

• Displacement 34.97cc
• Output 4.1ps/10,000r.p.m.
• Practical rpm : 1500-10000rpm
  
• Bore 37.3mm
• Practical r.p.m. Range1,500-10,000r.p.m.
• Stroke32.0mm
• Weight 1.340g

OS Piston Pin 55HZ

High-performance silencer for OS MAX 105 HZ / HZ-R motors, this muffler also fits other models, e.g engines 91-105 with same OS type flange. great performance

This is the Powerboost III Pipe 55

for the O.S. Engines 55HZ Hyper, 55HZ-R and 50SX-H Hyper Helicopter Engines.

FEATURES:

• Aluminum construction with polished natural finish
• Excellent performance from high RPM maneuvers to idling and hovering

INCLUDES:

• Powerboost III Pipe with Metal Gasket
• Rubber Exhaust Tube, black in color
• Two M3x35mm Socket Head Screws
• Two M3 Nuts
• M4 Nipple
• M4x6 Plug Screw
• Zip Tie

SPECIFICATIONS:

• Length: 281mm
• Diameter: 43.6mm
• Distance Between Muffler Mounting Hole Centers:37mm
• Exhaust Outlet Diameter: 9mm

Piston for Helicopter and Airplane engine OS50/ SX-H OS25203200

O.S. Piston Pin Retainer , 2 PCS

Piston Ring for Helicopter and Airplane engines 50HZ, 61SF ,55HZ, 61RF, HANNO special

Piston Ring OS, fits the following engines

OS ENGINE 91FX, 91SX,91SZ ,91RZ,Align 91H

Piston Ring OS, fits the following engines

Piston Ring OS ENGINE MAX 90 FSR / MAX 90 RSR-M / YAMADA YS 91-SR /91-SRS /YS 91-SR3C

Piston Ring OS engines 105HZ, 108FSR