O.S. Engine #38000 - OS GT55  [OS-38000]

Introducing 1st O.S. gas engine-designed particularly for R/C!

It's similar to look at with other O.S. 2-cycle machines, with a significant number of extra-deep and -thin air conditioning fins in the crankcase and head. An original 1-piece crankcase design eliminates gaskets and enhances power and accuracy.

An original front-mounted carbohydrate, but provides several performance advantages.

• Better carburetor cooling, to get more constant engine runs and high performance.
• Requires smaller standoffs, which results in better installation (mounting) and less vibration in general.
• Quite simple, direct installation of the throttle and choke linkages.

Another major performance advantage could be the IG-01 Capacitive Discharge Ignition. Developed from proprietary O.S. technology, it utilizes a microcomputer programmed for maximum spark advance. Magnetic sensors on the crankcase and prop drive detect ignition timing. The IG-01 additionally detects and compensates for wet plugs, ensuring quick begins. Made to accept many input voltages, the IG-01 requires minimal present in standby mode and features a low-voltage warning (intermittent engine operation).

Features:

• IG-01 Capacitive Discharge Ignition utilizes a microcomputer programmed for optimum spark advance by using magnetic sensors on the crankcase and prop drive, the IG-01 additionally detects and compensates for wet plugs to make certain consistent quick begins, also calls for minimal current in stand-by mode and features a reduced voltage warning (intermittent motor operation)
• Front mounted carburetor stays cooler at a lower price heat percolation and much more constant performance, simple and direct throttle and choke linkages
• Unique one-piece crankcase eliminates gaskets and enhances power and accuracy
• Front induction rotary valve crankshaft design for positive opening and closing of valve for maximum timing, no oil seal required which eliminates RPM loss due to extra friction
• Massive front side and back crankshaft bearings for extended life and maximum energy production
• Slim high-performance piston ring and high-strength aluminum alloy piston for paid down break-in and high compression from 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, Guide

Specs:

• Displacement: 54.93cc (3.325 ci)
• Bore: 41.2mm
• Stroke: 41.2mm
• Practical RPM: 1,500 - 8,000

Suggested Propeller:

• 20x10 - 22x10, 24x8