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OSMFF320

OS FF-320 Four Cylinder 4-C

Product Info | Replacement Parts
OS ENGINES

OSMFF320
OS FF-320 Four Cylinder 4-C
By OS ENGINES
$2,899.99 CAD    
Order Quantity:  
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SPECIFICATIONS
4 x 0.809 cu in
Displacement:
1.091 in
Bore:
0.866 in
Stroke:
77.3 oz
Weight:
1,800 to 8,500 rpm
RPM Range:
5/16-24
Crankshaft Thread:

FEATURES

Closely following the design of a typical full-size light aircraft engine, the 53cc Pegasus FF-320 is a horizontally-opposed 4-cylinder engine and has been developed from the 40cc Pegassus FF-240 introduced in 1986. The Pegasus is unique; it is the only flat four model aircraft engine on the market. It is powerful, yet very easy to handle and incredibly free from vibration. Features include: pushrod over-head valve; seven ball bearings; ringed pistons; and special propeller locknut assembly. Firewall mount and glow plugs are included.

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ADDITIONAL PHOTOS
   
PRODUCT RESOURCES
VENDOR TECHNOTES
  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. This engine is covered by a 2-Year Warranty.


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

INCLUDES: One Assembled FF-320 4-stroke Engine
One Set of Instructions, Decals, and Poster
One Choke Valve
Four Glow Plugs (OSMG2692)
One Motor Mount (OSMG2804)
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

REQUIRES: 2-STROKE Fuel with 5%-15% nitromethane and 16% MINIMUM oil content.
(All 5%-15% fuels we carry meet these requirements)
DO NOT USE 4-STROKE FUELS!!)
JBN 7.27.93
These items are no longer included: ir/jl
NEEDLE VALVE EXT CABLE, CHOKE VALVE ROD updt lmm 4/6/09
(3) ALLEN KEYS 2.0,2.5,3.0-SCREW DRIVER
FOR MIX CNTRL, PROP WASHER,5 WRENCHES
** Please check the ACG for these part numbers***
4531028002418 4531028002418 
OSMG1320