Home | About Us | News | Find Us | Contact Us | Links | My Account | Login | Checkout | Carriage | Terms
You are not logged in
aircraft
helicopters
boats
Radio Control Equipment
IC Engines
modelling accessories
cars & vehicles
Modelling Help
Electric Motors
All Batteries
Multirotors
search

Results per page

Advanced Search

SSL Certificate
Discontinued OS GT55 Petrol discontinued
from OS Engines
New Petrol Engine from OS

O.S. has developed a long-awaited 2 stroke (gasoline) petrol  engine. The GT55 was expressly developed for hobby use to meet the many demands of O.S. fans and large (gasoline) petrol engine users. The external appearance was designed after conventional O.S. glow engines.

Features
Carburetor
With the carburetor mounted in front you get the following advantages
a)Throttle linkage, needle adjustment and choke valve operation are easily made.
b)The carburetor is easily cooled which is better for heat migration.
c) the standoffs are much shorter or not needed, which enables more secure engine installation and results in less vibration.

CDI Igniter
CDI which is good against wet plug conditions is employed. It keeps high voltage up to high RPM, which reduces misfiring. The idling current is very low. It also has a function to warn voltage drop of current source by intermittent running.

IC Magnetic Sensor
The IC magnetic sensor consists of a magnet installed in the drive hub with the pick-up sensor mounted on the crankcase. This makes it easy to control ignition timing. It detects a stable position signal for starting and from idle to high speed.

Cylinder Head & Crankcase
Dense and deep head fins as well as crankcase cooling fins allow better cooling which is vital with a gasoline engine that generates higher heat.

Cylinder Liner & Piston
O.S.ís precision machining is done on the cylinder liner to achieve accurate scavenging and exhaust timing. The piston is machined from low expansion and high durable aluminium alloy and the connecting rod is machined from extra super duralumin block.

Crankshaft
Since a rotary shaft iis employed, the valve is opened and closed at optimum timing. Also by eliminating an oil seal it greatly reduces rotation loss.

Displacement::54.93cc(3.35cu.in)  -  Bore: 41.2mm(1.62in)  -  Stroke:41.2mm(1.62in)   -  Practical RPM: 1,500〜8,000r.p.m.  -  Power Output::5.5ps/7,000r.p.m  -  Weight:Engine:1,580g(55.7oz.)............Igniter : 140g(4.94oz.)




This item is currently out of stock.

  • OS GT55 Petrol (one only) Was: £574.99 Now: £0
    SMC-E-OS38000
read more
shopping cart
Special Offers and Sale Items
Hobbyzone Champ RTF Limited Offer
Was: £84.99
Now: £49.99
read more
Spektrum AR9020 9 Channel DSMX/XPlus Receiver (Bagged)
Was: £120.00
Now: £89.99
read more
New Spectrum DX18 18 Channel Telemetry System (TRANSMITTER ONLY)
Now: £445.00
read more
New Spectrum DX18 18 Channel Telemetry System Transmitter (LIMITED STOCK)
Was: £652.50
Now: £495.99
read more
Overlander Extreme Pro 2200mAh 3S 11.1v 60C (Limited Stock Available)
Was: £32.99
Now: £26.95
read more
Overlander Super Sport 6100mAh 5S 18.5v 30C (Limited Stock Available)
Was: £109.99
Now: £65.95
read more
Top Flite P-47D Thunderbolt (1 ONLY)
Was: £312.99
Now: £299.99
read more
Spektrum A3020 Sub-Micro Digital Hi-Speed Aircraft MG Servo (Limited Stock Available)
Now: £10.99
read more
Blue Light Technologies Ultra Bright Nav Lights (1 ONLY)
Was: £79.95
Now: £59.99
read more
Blue Light Technologies Super Bright Nav Lights (2 ONLY)
Was: £99.95
Now: £69.99
read more
Axion RC Excell 200 2.4Ghz (RTF)
Was: £56.99
Now: £37.99
read more
UDI U841 Nano RX4 with Video Camera (Red)
Was: £49.50
Now: £45.50
read more
Seagull Extra 300S 61-75 (2 only)
Was: £132.99
Now: £125.00
read more
Seagull Extra 260 (90-120) 2 only
Was: £145.35
Now: £135.00
read more
E Flite Apprentice ESP 15e BnF limited offer
Was: £188.99
Now: £159.99
read more
Weston Velocity 50 Size With West 52v1, pipe & spinner
Was: £296.10
Now: £281.00
read more
Great Planes Factor 3D limited offer
Was: £99.99
Now: £89.99
read more
Blade 350 QX3 BNF Version
Was: £314.99
Now: £275.99
read more
Futaba BLS153 Servo Mini Brushless 0.15s/4.8kg (Limited amount available)
Was: £99.99
Now: £39.99
read more
Spektrum DX6i 2.4GHz DSMX Mode 2 Tx/AR610Rx Combo with aditional AR610 Rx (Limited stock available)
Was: £104.99
Now: £99.99
read more
Spektrum DX5e 2.4GHz DSM2 Mode 2 (Limited Stock)
Was: £67.49
Now: £59.99
read more
Spektrum DX9 Transmitter Only Mode 2
Was: £334.99
Now: £259.99
read more
Q500 Typhoon RTF Quadcopter (LIMITED STOCK AVAILABLE)
Was: £959.99
Now: £877.50
read more
Maxford USA Nieuport 28 EP 70 ARF (1 ONLY)
Was: £269.00
Now: £242.99
read more
Ikarus Aerofly FS (WINDOWS) Version LIMITED STOCK
Now: £4.99
read more
Hangar 9 P-51D Mustang (1 ONLY)
Was: £174.50
Now: £159.99
read more
Atomic Lightning Bolt (RED)
Was: £59.99
Now: £39.99
read more
Atomic Flash V Hull Speed Boat RTR (RED)
Was: £35.99
Now: £23.95
read more
Mini Twister Scale Helicopter - New Low Price
Was: £39.99
Now: £26.95
read more
Twister Police Helicam RTF
Was: £149.99
Now: £69.95
read more