This is my new Thunder Tiger GP-42 Engine (No.9041). Designed using CAD computer technology. Major components of the engine are machined from the highest quality materials using state-of-the-art CNC manufacturing techniques, resulting in consistent high quality and reliability. Schnuerle porting, a special ABN type piston and cylinder sleeve, a new and easy to tune carburetor and a safe angular (swept back) needle valve. Designed for beginners or experienced modelers.
Recommended fuel by the manufacturer: 20% castor or castor/synthetic blend with no more than 10% nitromethane for break-in. The manufacurer also strongly discourage using fuel containing only synthetic lubricants during the initial break-in period.
Recommended prop:
During break-in = 10x5
Normal = 10x6
Glow plug
Operates best with a 'hot' R/C long-type plug, such as Redline R2, K&B or O.S. No. 8
Engine specification
Displacement: 6.49cc/0.396cu.in
Bore: 21.2mm/0.835in
Stroke: 18.4mm/0.724in
Crankshaft Thread: UNC 1/4-28
Practical RPM: 2,000-17,000
Output: 1.10BHP@16,000 RPM
Weight with muffler: 357.2g/12.6oz.
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