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.’s 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
Flyzone Tidewater Float Plane
Was: £149.99
Now: £94.99
read more
Flyzone Mini Switch 2 Planes in 1 RTF
Was: £149.99
Now: £135.00
read more
Flyzone Mini Switch 2 Planes in 1 TX-R
Was: £129.99
Now: £73.99
read more
Flyzone Eraze Brushless RTF 2.4GHz
Was: £107.99
Now: £64.50
read more
Spektrum DX8 Transmitter and Charger Only (1 ONLY)
Now: £90.00
read more
Savage XL Octane Monster Truck
Was: £739.00
Now: £655.00
read more
Etronix PowerPal Touch Charger/Discharger
Was: £89.99
Now: £59.99
read more
VQ Yakovlev Yak-9 (1 ONLY)
Now: £99.99
read more
Cambrian ME 109 (One only)
Was: £69.99
Now: £64.99
read more
E Flite UMX™ Ultra Micro Radian® BNF
Was: £85.49
Now: £69.99
read more
Parkzone Sukhoi SU29-MM BNF Basic
Was: £149.99
Now: £129.99
read more
E Flite Ultra Micro AS3Xtra BNF Basic
Was: £79.99
Now: £59.50
read more
Hobbyzone Duet RTF
Was: £44.99
Now: £34.99
read more
E Flite Spacewalker BNF
Was: £60.50
Now: £49.99
read more
E-Flite Ultra-Micro F4U Corsair BNF With AS3X
Was: £71.99
Now: £59.99
read more
Blade 350QX2 AP RTF inc. camera (1 ONLY)
Now: £469.99
read more
E Flite P-51D Mustang 280 BNF Basic (2 ONLY)
Was: £130.50
Now: £99.99
read more
Parkzone Ka8 2.25metre Sailplane PNP (Limited Stock Available)
Was: £93.75
Now: £79.99
read more
E Flite UMX Whipit DLG BNF Basic (Limited Stock Available)
Was: £66.99
Now: £56.99
read more
E-Flite Apprentice S 15e RTF with DX5e Transmitter (Limited Stock Available)
Was: £207.99
Now: £179.99
read more
Hobbyzone Corsair S RTF UK Version (Limited Stock)
Was: £215.99
Now: £174.99
read more
E Flite Apprentice ESP 15e BnF (Limited stock)
Was: £169.99
Now: £149.99
read more
Blade 180 CFX BNF Basic (Limited Stock)
Was: £159.50
Now: £149.99
read more
E Flite FJ-2 Fury 15 DF BNF Basic (Limited Stock Available)
Was: £179.99
Now: £159.99
read more
Spektrum AR610 6-Channel DSMX Aircraft Receiver Boxed
Was: £49.99
Now: £24.99
read more
Flycam One HD 720P (Venus) (1 ONLY)
Was: £119.99
Now: £69.99
read more
Parkzone Ultra-Micro 3.95x3.95 3 blade prop.
Now: £2.50
read more
Losi 8ight-E RTR with AVC Electric 4wd Buggy (1 ONLY)
Was: £499.99
Now: £399.99
read more
Dynamite 200W x 2 Dual AC/DC Charger (5 ONLY AVAILABLE)
Was: £249.99
Now: £199.99
read more
Dynamite Prophet Sport Duo 50Wx2 AC Battery Charger UK (VERY LIMITED STOCK AVAILABLE) 5 ONLY
Was: £74.95
Now: £61.50
read more