91FX O.S. Engine  [OSMG0591]

Made for sport, but engineered for quality, the 91FX supplies the power and user-friendly top top top top options that come with other FX Series products in a displacement complement large-scale aircraft. The 91FX well bridges the vitality area between .60-size radiance products and fuel products, providing the straightforward familiarity of radiance technology with the added power that today's large-scale modelers require. Featuring its top production of 2.8 hp, the 91FX can place a large-scale airplane through its paces effectively. Adequate basis for O.S.' careful assessment and design behind it, large-scale pilots can travel the utmost in lasting dependability.

Coarse threads and an O-ring seal concerning the needle valve minimize settings creep ultimately due to vibration and environment leakages, supplying more routes with less alterations.

Extra-long crankshaft and locknut construction offer more thread size for better prop nut engagement and much more security for pilots and onlookers.

A diminished crankcase profile renders area to obtain additional head height and air-con fins-semi-squared mind design further improves ac ability and satisfaction.

Dual bearing design includes a significant front bearing for additional durability and smoothness.

The most truly effective power plant for all Top FliteR Gold Edition Kits

DEMANDS

• Inventory quantity: OSMG0591
• Displacement: 0.912 cu in (15.0 cc)
• Bore: 1.091 in (27.7 mm)
• Stroke: 0.976 in (24.8 mm)
• Practical rpm: 2,000-16,000
• Output: 2.8 hp @ 15,000 rpm
• Weight: 19.3 oz (550 g)
• Includes: Muffler, protection Propeller Locknut Assembly, #8 radiance plug
• Needs: fuel, mount & prop
• Suggested Props: 13x8, 13x9