OS Engines Pegasus FT-320 4-Cyclinder Ringed Four Stroke Aircraf

Overview

Power your prized Giant scale plane with an O.S. Multi-Cylinder 4-Stroke Engine. The O.S. FF-320 (Nicknamed "Pegasus") is a Flat-Four Cylinder Engine. It is the ultimate in scale realism: abundant power, realistic noise levels, and scale appearance.

Features

• Pushrod-Driven Overhead Valves
• Ringed Pistons
• Gear-Driven Camshaft
• 5 -Crankshaft Ball Bearings
• 2 -Camshaft Ball Bearings
• Four Cylinders (flat, 2 opposing 2) Firing Order: 1-3-2-4

Power your prized Giant scale plane with an O.S. Multi-Cylinder 4-Stroke Engine. The O.S. FF-320 (Nicknamed "Pegasus") is a Flat-Four Cylinder Engine. It is the ultimate in scale realism: abundant power, realistic noise levels, and scale appearance.

Includes: 

• One Assembled FF-320 4-stroke Engine
• One Set of Instructions, Decals, and Poster
• One Choke Valve
• Four Glow Plugs 
• One Motor Mount
• One Safety Prop Nut Assembly
• One Glow Plug Extension Harness
• One Spare Woodruff Key

Specs

Construction All aluminum and Aluminum alloys

Displacement 13.26 cc (x4) (.809 cu in x4)

Bore 27.7mm (1.091")

Stroke 22.0mm (.866")

Power Output 4.1 BHP at 8,000 RPM

Weight 2,190g (77.3oz) w/mount

Practical RPM Range 1,800 - 8,500 RPM

Length 181.5mm (7.15") from back of mount to front of drive washer

Width 196mm (7.72")

Height 80mm (3.15") from top of mount to bottom of mount. The carb extends 30-40mm farther down.

Distance from front-most edge of front header to drive washer 36mm

Crankshaft Thread size 5/16-24

Suggested Props 18x10, 18x11, 18x12, 18x13, 18x14, 20x8, 20x9, 20x10, 22x8

Needle Settings High Speed 3-3.5 turns out from fully closed

Mixture Control (low speed) Turn counter-clockwise until it stops, then 2 turns out