Helicopter Engines

Align RC 55H Engine made in Japan and suitable for superior 55 size helicopter.

Features:

• 40L dual needle carburetor, makes the adjustment much more precisely.
• Delivers more horsepower for higher rotor speeds.
• Brand new crankshaft design. Increase the efficiency of intake/exhaust and makes the power stronger.
• Besides good looks and excellent cooling, this engine is machined blue alumite heat sink head also boosts combustion efficiency for more power stability.
• Same size connector to the mount and the muffler as what Align 50 Hyper engine has,Maximize the efficiency when operating with ALIGN 50 High Performance Muffler.

Specifications:

• Displacement:8.93cc (0.55 cu.in.)
• Bore:23mm (0.91 in.)
• Stroke:21.5mm (0.85 in.)
• Practical rpm range:2000-20000 rpm
• Output:2.1hp/17000rpm
• Weight:408g (14.40 oz.)

Includes:

• OS#8 glow plug x1
• 40L carburetor x1

O.S.Engine GGT15 - 15cc Airplane Gas Engine with a Glow plug!

The O.S. GGT15 is a revolution in petrol engines, it is a petrol engine that uses a glow plug! Though extensive testing and development OS have developed the special G5 gloplug capable of use in petrol engines giving you the efficiency and fuel price of a petrol motor with the value and simplicity of a glow motor. Based on the popular GT-15 the GGT15 is designed to fit in place of a .61-.91 engine but give you the efficiency of a petrol engine and the ease of use you normally associate with a glow engine. The use of a glow plug means the GGT15 is simple to install as it doesn't require an ignition module and easy to start using a normal glow starter like traditional glow engines.

Specs:

• Displacement: 14.95cc
• Bore: 27.7mm
• Stroke: 24.8mm
• Output: 2.32hp @ 15.000RPM
• Practical RPM Range: 2.000-15.000
• Weight Engine: 630g
• Weight Muffler: 169g

This is a modified Zenoah engine, the piston-and cylinder are hand picked, and balanced crank and wheel.

this is a very good option for less vibrating engine

Technical Data:

• Cylinder displacement: 25.4 cm³ / 1.55 cu.inch
• Cylinder bore: 34 mm / 1.34 inch
• Cylinder stroke: 28 mm / 1.1 inch
• Power output: 2,49PS / 1.86 kW at12.000 RPM
• Drehmoment: 1,63NM bei 9.000 RPM
• Carburettor: WT-990
• Venture: 12,7mm (Diameter)
• Spark plug: NGK CMR7H
• Spark plug gap: 0,65mm
• Ignition system: Transistor charger ignition (TCI with BTC 30° / 8000 URPM)
• Start system: Seilzugstarte
• Effective Compression Ratio: 8,9
• Recomended Fuel: 25 Parts gasoline / 1 Part Oil
• Clutch: 2 Shoes
• Clutch Engagement at ca. 6.000 RPM
• Idling Speed: ca. 4000 RPM
• No load max. Speed: ca. 19.500 RPM
• Fuel Consumption: ca. 653g/kw h
• Overall dimensions (LxWxH): 166 x 205 x 196mm
• Weight ca: 2,07 kg / 4.63 lbs

Delivered without clutch and accessories !

The GT15 is equivalent in power to an OS 75AX and is designed to fit in place of a .61-.91 engine but give you the efficiency of a petrol engine. The new 61H carburetor design is made specifically for this engine and features an angled needle valve assembly for safer use. Ignition is provided by a sophisticated unit that is also common to many OS petrol engines. The main HT lead is shielded to prevent spurious emissions and the spark is delivered by a high quality CM-6 spark plug. Not quite a fit and forget system but pretty close!!

OS engines are never the cheapest, but like all things in life, you get what you pay for and every OS is guaranteed to have the very best quality, time after time.

Specs:

• Displacement: 14.95cc
• Bore: 27.7mm
• Stroke: 24.8mm
• Output: 2.37hp @ 15,000r.p.m.
• Practical r.p.m.Range: 2.000-15.000
• Weight: 631g (engine), 169g (silencer), 95g (ignition module)
• GasolineOil Mixture: 30:1 - 50:1
• 25:1 fueloil mixture if brand of oil states 50:1 mix
• Propeller: 13x8-11, 14x8-10, 15x8
• Iginition Battery: 4.8-8.4V NiCd or NiMH, 6.6V LiFe or 2S 7.4V LiPo
  

Premium performance for 30-40-sized machines, from extreme aerobatics to stable hovering
Same mounting pattern and muffler dimensions as the .32 SX-H, for easy installation in most 30-40 size helis
Re-engineered crankshaft reduces vibration resulting in smooth power across the entire RPM range
20M carburetor with idle needle positioned on same side as main needle for easier adjustments
Two year limited warranty

Includes:

• O.S. Max .37 SZ-H Ring Helicopter Engine
• #8 Glow Plug
• 20M Carburetor
• Instruction manual
• Sticker sheet

Specifications:
Displacement: 0.37 cu in (6.07cc)
Bore: 0.806 in (20.5mm)
Stroke: 0.725 in (18.4mm)
Practical RPM range: 2000-21,000
Output: 1.4 ps @ 18,000 RPM
Weight: 10.3 oz (293g)
Crankshaft Size: 1/4-28
Distance between mounting holes same side: 0.6" (15mm)
Distance between mounting holes opposite side: 1.5" (38mm)
Width including mounting flanges: 1.8" (45mm)
Width neglecting mounting flanges: 1.5" (38mm)
Height/bottom of crankcase to top of cylinder head: 3" (76mm)
Height/bottom mounting flanges to top of cylinder head: 2.4" (61mm)
Distance/center of crankcase to front bearing: 1.8" (46mm)
Distance from backplate to front bearing: 2.6" (67mm)
Distance from backplate to end of crankshaft: 3.7" (94mm)
Low speed needle 1 turn in from flush with carb body
High speed needle 1.5 turns out from closed
 

This is the O.S. Max 105 HZ Helicopter Engine. This is the engine precision aerobatic and 3D heli pilots have been waiting for! In order for 90-sized machines to nail huge maneuvers and hardcore, smackdown-style 3D it's all about power, and the 105HZ has it in abundance. Displacement has been increased by 15%, while a huge venturi rams air into the carburetor, producing massive power. Plus, they fit in a .90-sized mounting pattern.

Features:

•   Featuring the displacement of a 1.05 in the mounting space of a .90.
•   More displacement means more power, and these engines boost displacement by 15%!
•   A huge venturi boosts output even further.
•   The machined, blue anodized heatsink head is light in weight, and cools the engine efficiently.

Specifications:

• Displacement: 1.048 cu in (17.17cc)
• Bore: 1.442 in (29mm)
• Stroke: 1.024 in (26mm)
• Practical RPM: 2,000-16,500
• Output: 3.75 hp @ 15,000 rpm
• 105HZ Weight: 21.03 oz (596g)

This is a DRS (regulator pump) engine. With Demand Regulator System, Cylinder capacity: 8,93 cm³ Output Power: 2,13 HP @ 17000 RPM Ideal power drive for T-REX 600N, OXY5 Nitro... O.S.

Technical information

• Distance of screw hole / longitudinal [mm]: 17,5
• Distance of screw hole / crosswise [mm]: 44
• Item Number Manufacturer: 15650
• Model: 2-Takt Nitro
• Diameter of fixing hole [mm]: 3,2
• Bore [mm]: 23
• Width [mm]: 52
• rpm range, approx.: 2000~20000
• All-up weight [g]: 429
• Height approx. [mm]: 91
• Stroke [mm]: 21,5
• Cylinder capacity [ccm]: 8,93
• Cooling system: Air
• Length to hub: 76,6
• Output [W]: 1570
• Output [kW / PS] at [rpm]: 1,57 (2,13) 17000
• Carburetor : 40L-R
• Shaft thread: UNF1/4-28

This is the engine that precision aerobatic and 3D heli pilots have been waiting for! In order for 90-sized machines to nail huge maneuvers and hardcore, smackdown-style 3D it's all about power, and the 105HZ-R has it in abundance. Displacement has been increased by 15%, while a huge venturi rams air into the carburetor, producing massive power. Plus, they fit in a .90-sized mounting pattern.

• Featuring the displacement of a 1.05 in the mounting space of a .90.
• More displacement means more power, and these engines boost displacement by 15%!
• A huge venturi boosts output even further.
• The machined, blue anodized heatsink head is light in weight, and cools the engine efficiently.
• An extra feature on the 105HZ-R is the pressurized DRS (Demand Regulator System), which ensures consistent fuel flow regardless of the heli's attitude.

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 ps @ 15,000 rpm
• 105HZ Weight: 21.03 oz (596 g)
• 105HZ-R Weight: 21.46 oz (608 g)

This is the OS 55HZ Hyper Ringed Helicopter Engine with the 40L Carburetor. Ideal for 3D flight-power equal to .60 size heli engines Same mounting bolt pattern and silencer size as the OS 50SX-H Hyper Dual needle 40L carburetor with four arm throttle lever for use with a variety of servo brands Best works with 10% to 30% nitro Fuel with at least 18% lubricant (Helicopter Mix)

Specifications

• Displacement: 0.55 cu in (8.93cc)
• Bore: 0.91" (23mm)
• Stroke: 0.85" (23.5mm)
• Practical RPM: 2,000-17,000 RPM
• Weight: 14.39oz (408g)

This is the O.S. .91 HZ-R 3D Speed Competition 3D Helicopter Engine, with 61G carburetor. O.S. has taken high-performance, high-speed helicopter engines to the next stage of evolution with the introduction of the 91HZ-R 3D Speed. This engine offers unique features that give pilots a distinct advantage in 3D competition, like the Demand Regulator System, which supplies the carburetor with a consistent fuel supply regardless of the level of fuel in the tank, or the attitude of the helicopter. A re-designed combustion chamber has been shaped to match the big bore carburetor and advanced exhaust cylinder timing providing optimum performance, while the lightweight, CNC machined cooling head and black anodized crankcase provides efficient cooling in the harshest conditions.

91HZ-R 3D Speed Features:

• Designed for all-out, aggressive 3D competition.
• Offers incredibly stable mid-range torque for awesome 3D flight
• Carburetor inlet enlarged to 11.2 mm
• Exhaust port timing set at 165°
• Combustion chamber shaped to match the big bore carburetor and advanced exhaust cylinder timing
• Demand Regulator System (DRS) guarantees a steady fuel supply to the carb at any attitude, on a full or empty tank and during the most abrupt throttle changes
• Lightweight, machined cooling head
• Crankshaft counter weight has been modified to reduce vibration at high RPM
• Black anodized crankcase offers better heat dissipation

Specifications:
Displacement: 0.91 cu in (14.9cc)
Bore: 1.09 in (27.7mm)
Stroke: 0.98 in (24.8mm)
Output: 3.6 hp @ 15,500 rpm
Practical RPM: 2,000-16,500
Weight: 21.2 oz (603g)
Requirements: 10%-30% nitro fuel with at least 18% lubricant content

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

Yamada TareQ 96 SRX Helicopter Engine

The YS96 SRX Tareq engine has been a collaboration between YS Engines of Japan, and Tareq Alsaadi. Looking to further improve on the impressive performance of the YS 91 SRX, YS and Tareq spent many hours of R&D to bring the 96 to the table. With the co-op, YS has landed with the highest power 90 sized engine to date.

Features:

• Larger Cylinder Head for Improved Cooling
• Improved Porting of Sleeve
• Counterbalanced Crankshaft for Excellent Balance at all RPM's
• Proven pressurized regulator and fuel injection system for a superior throttle response
• Steel lined back plate to reduce drag for more power

Specifications:

• Type: 2-stroke helicopter engine
• Displacement: 0.96 cu. in. (15.75 cc)
• Bore: 1.06 in (27.0mm)
• Stroke: 1.08 in (27.5mm)
• Cylinders: Single
• Total Weight: 19.5 oz (565 g)
• RPM Range: 2,000–17,000

This is the YS .60SR Side Exhaust Competition Helicopter Engine. The YS60SR was developed specifically for 50 class helicopters. The increased displacement of the YS60SR produces more power, and will make your 50 fly more like a 700/90 class machine! Additionally, the YS60SR was designed to run well on 15-30% nitro content fuel without head clearance changes.

Features:

Same mounting as the YS50ST and YS56SR
Proven fuel regulator system for a consistent and reliable operation
Three needle valve sytem for easier adjustment and fine tuning
Balanced crankshaft for smoother running
 

• DISPLACEMENT: 10cc
• BORE: 24mm
• STROKE: 22mm
• WEIGHT: 407 GRAMS

This is the 50 ST helicopter engine from Y.S. Engines made for 600 SIZE nitro helis. The YS 50 ST Heli Engine features the patented YS regulated fuel system for positive fuel flow during all types of flight conditions. The pressurized fuel system makes throttle response superior and is unaffected by tank level. YS 50 ST brings you even higher performance to flying in 50 class helicopter than ever before. This super powerful 50 size engine fits all helis that accept an O.S. 50 size engine, all 600 Nitro size helicopters

Key Features

• Proven fuel injection system for a consistent run and more power.
• Fuel regulator system not affected by fuel tank level
• Displacement:8.17cc
• Bore:22.0mm
• Stroke:21.5mm
• Engine (Only) Weight:398 grams

The new Power Yamada Engie, the best choice for 3D !!!! now tuned by Rüdiger Feil!

New even more powerful 90 size heli motor from YS, Featuring a brand new crankcase design, new cylinder head design, new cylinder liner & piston design & new crankshaft the overal effect is a huge power increase while still keeping the same mounting patterns as a standard YS 91SR! it really is simply the best!

Features Include:

NEW Larger cylinder head for better cooling and performance

  NEW Steel lined backplate to minimize drag resulting in better performance and increased horsepower
  NEW Piston & Sleeve design increasing both performance and efficiency
  Proven Regulated fuel system for positive fuel flow during all types of flight conditions

•   DISPLACEMENT: 14.89cc
•   BORE：27mm
•   STROKE：26mm
•   WEIGHT: 553g
•   PRACTICAL RPM: 2000~17,000

The new YS91SRS has a steel lining on the back plate to minimize drag to increase performance and horsepower. Back plate mounting RPM sensors will not work, because the steel lining will block the pick-up. A magnet mounted on the clutch bell or fan unit is recommended. Another option is to replace the steel lined back plate with an all aluminum back plate (same as YS91SR), if you choose to use your back plate mounted RPM sensor.

BH Hanson most powerful RC Heli engine.This is a Modified engine by Hanson.

The engine is very well balanced to minimize vibrations and is tuned to adjust power, torque and rpm perfectly for the Whiplash-G II. It runs very smooth

30.5 cc using Zenoah 36mm modified cylinder, 2mm stroker crank, pump bulb 990 carburetor, trued and balanced crankshaft and flywheel for smooth running ,transfer port modifications, lightened piston, metal isolator block, air filter, and muffler. very smooth and very powerful operation up to 12,800 engine speed.

Perfect for heavy lifting or gear up for higher head speed

Already since years the Zenoah Engines are the non plus ultra if people are talking about powerful and reliable engines. Especially in competition use they are well known.

Technical Data:

• Cylinder displacement: 22.5 cm³ / 1.37 cu.inch
• Cylinder bore: 32 mm / 1.26 inch
• Cylinder stroke: 28 mm / 1.1 inch
• Power output: 2,46PS / 1.81 kW at12.000 RPM
• Drehmoment: 1,58NM bei 9.000 RPM
• Carburettor: WT-990
• Venture: 12,7mm (Diameter)
• Spark plug: NGK CMR7H
• Spark plug gap: 0,65mm
• Ignition system: Transistor charger ignition (TCI with BTC 30° / 8000 URPM)
• Start system: Seilzugstarte
• Effective Compression Ratio: 8,9
• Recomended Fuel: 25 Parts gasoline / 1 Part Oil
• Clutch: 2 Shoes
• Clutch Engagement at ca. 6.000 RPM
• Idling Speed: ca. 4000 RPM
• No load max. Speed: ca. 19.500 RPM
• Fuel Consumption: ca. 616g/kw h
• Overall dimensions (LxWxH): 166 x 205 x 196mm
• Weight ca: 2,07 kg / 4.63 lbs

Scope of supply:

• Walbro 990 Carburetor
• Airfilter
• Silencer / Muffler
• Service & Small Parts Accessories bag
• Clutch System from Zenoah incl. Clutch Shoe Arm
• Clutch Housing

Already since years the Zenoah Engines are the non plus ultra if people are talking about powerful and reliable engines. Especially in competition use they are well known.

Technical Data:

• Cylinder displacement: 25.4 cm³ / 1.55 cu.inch
• Cylinder bore: 34 mm / 1.34 inch
• Cylinder stroke: 28 mm / 1.1 inch
• Power output: 2,49PS / 1.86 kW at12.000 RPM
• Drehmoment: 1,63NM bei 9.000 RPM
• Carburettor: WT-990
• Venture: 12,7mm (Diameter)
• Spark plug: NGK CMR7H
• Spark plug gap: 0,65mm
• Ignition system: Transistor charger ignition (TCI with BTC 30° / 8000 URPM)
• Start system: Seilzugstarte
• Effective Compression Ratio: 8,9
• Recomended Fuel: 25 Parts gasoline / 1 Part Oil
• Clutch: 2 Shoes
• Clutch Engagement at ca. 6.000 RPM
• Idling Speed: ca. 4000 RPM
• No load max. Speed: ca. 19.500 RPM
• Fuel Consumption: ca. 653g/kw h
• Overall dimensions (LxWxH): 166 x 205 x 196mm
• Weight ca: 2,07 kg / 4.63 lbs

Scope of supply:

• Walbro 990 Carburetor
• Airfilter
• Silencer / Muffler
• Service & Small Parts Accessories bag
• Clutch System from Zenoah incl. Clutch Shoe Arm

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)