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This is the O.S. GT55 Gasoline Engine with Electronic Ignition Unit, Brand New in Box.
Introducing the first O.S. gas engine—designed especially for R/C!
It is similar in appearance to other O.S. 2-cycle engines, with a large number of extra-deep and -thin cooling fins on the crankcase and head. A unique 1-piece crankcase design eliminates gaskets and enhances strength and precision.
A unique front-mounted carb, however, provides several performance benefits. - Better carburetor cooling, for more consistent engine runs and high performance.
- Requires shorter standoffs, which results in more secure installation (mounting) and less vibration overall.
- Very simple, direct installation of the throttle and choke linkages.<
Another major performance benefit is the IG-01 Capacitive Discharge Ignition. Developed from proprietary O.S. technology, it uses a microcomputer programmed for optimum spark advance. Magnetic sensors on the crankcase and prop drive detect ignition timing. The IG-01 also detects and compensates for wet plugs, ensuring quick starts. Designed to accept a wide range of input voltages, the IG-01 requires minimal current in standby mode and features a low-voltage warning (intermittent engine operation).
FEATURES: - IG-01 Capacitive Discharge Ignition uses a microcomputer programmed
for optimum spark advance through the use of magnetic sensors on
the crankcase and prop drive, the IG-01 also detects and
compensates for wet plugs to ensure consistent quick starts, also
requires minimum current in stand-by mode and features a low
voltage warning (intermittent engine operation)
- Front mounted carburetor stays cooler for less heat percolation and
more consistent performance, simple and direct throttle and choke
linkages
- Unique one-piece crankcase eliminates gaskets and enhances strength
and precision
- Front induction rotary valve crankshaft design for positive opening
and closing of valve for optimum timing, no oil seal required which
eliminates RPM loss due to additional friction
- Massive front and rear crankshaft bearings for longer life and
maximum power output
- Thin high-performance piston ring and high-strength aluminum alloy
piston for reduced break-in and high compression from the very
first run
INCLUDES: O.S. GT55 Gasoline Engine with Electronic Ignition, Carburetor, CM-6
Spark Plug, four Mounting Standoffs, Prop Washer with four 5x40mm
Socket Head Cap Screws and Instruction Manual
Suggested Propeller: 20x10 - 22x10, 24x8
SPECS:
Displacement: 54.93cc (3.325 ci)
Bore: 41.2mm
Stroke: 41.2mm
Practical RPM: 1,500 - 8,000
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