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OS FSα-72 四行程飛機用引擎 附消音器 #34720




商品貨號： E34720
商品品牌： O.S
市場價格： $11900元
本店售價： $10376元
備　　註： 需預訂
 
 

OS FSα-72 四行程飛機用引擎 附消音器 #34720

 

This is the glow powered O.S. 72FS-a 4-Stroke Aircraft Engine.

Features

  • O.S. FS72-A 34720 Ring 61N Carburetor OSMG0877

  • Ideal powerplant for 56 size aircraft-provides extra power for hovering and 3-D type manuevers, also provides torque for turning larger diameter props for more realistic scale filght

  • Broad power band suitable for Scale as well as Sport models

  • Same mounting bolt pattern as the FL-70 and FS-70 Ultimate

  • New 61N carburetor with extended intake tube eliminates reverse flow tendency of air/fuel mixture, carb is reversible 180°

  • Blow-by internal oil system eliminates the need for a crankcase breather fitting

  • Adjustable exhaust outlet direction and exhaust port to muffler distance

  • Same muffler as the O.S. 81FS-a offers a pleasant exhaust sound with a lower sound level

  • Two year limited warranty

Specifications

  • Displacement: 0.72 cu in (11.79cc)

  • Bore: 1.063" (27.0mm)

  • Stroke: 0.822" (20.6mm)

  • Weight: Engine, 16.79oz (476g)

  • Silencer & Manifold,1.90oz (54g)

  • Power output: 1.2 ps/11,000 RPM

  • Practical RPM: 2,400-12,500

  • Height from Bottom of Mounting Tab to Top of Crankcase: 3.5" (90mm)

  • Width of Crankcase below Mounting Tabs: 1.4" (36mm)

  • Center of Mounting Holes Same Side: .79" (20mm)

  • Center of Mounting Holes Opposite Side: 1.8" (45mm)

  • Center of Front Mounting Hole to Drive Washer: 1.9" (49.5mm)

  • Center of Rear Mounting Hole to Drive Washer: 2.7" (69.5mm)

  • Center of Crankcase to Center of Needle Assembly: 0.83" (21.3mm)

  • Center of Crankcase to Outer Edge of Needle Assembly: 1.3" (33.7mm)

  • Muffler Angle in Relation to Engine: 11°

Contents

  • O.S. 72FS-a 4-Stroke Aircraft Engine with muffler, header, type F glow plug and manual

Comments

  • Fuel: 10%-20% nitromethane with 18% lubricant. Synthetic, castor, or a synthetic/castor lubricant blend may be used. NOTE: Certain four-cycle fuels cannot be used due to low oil content. However, SOME four-cycle fuels  may be used due to its 18% oil content.

  • When choosing fuels for this engine, be sure to select a fuel with at least an 18% lubricant content.

  • Propeller: Sport and aerobatic scale 12x7, 13x6-8, 14x6-7
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