GMEG1047     47ABC-FN .47 ABC BB Fr Ndl Vlv w/Mfflr 

TECH NOTES

This is a .47 2-Stroke Airplane ABC Engine with Front Mounted Needle Valve
from GMS.

FEATURES: Ball bearing-supported crankshaft
Front-mounted High Speed needle valve
Low Speed needle-equipped carburetor
Aluminum Brass Chrome piston/sleeve construction
Adjustable exhaust outlet on muffler allows 360° rotation of
muffler tip
Gold anodized heatsink head
One piece crankcase with a bead-blasted finish
2 year warranty on all GMS engines

INCLUDES: One .47 airplane engine
One bolt-through muffler
One carburetor
One muffler gasket
One glow plug
Two allen key tools
Two muffler screws
One manual and parts list

REQUIRES: Attaching High Speed remote needle valve and muffler.
5-15% airplane nitro fuel.
10x7 break-in propeller

SPECS:    Displacement: .47 cid (7.72cc)
Bore: 22.4mm
Stroke: 19.6mm
Output: 1.47 BHP at 15,000 RPM
Practical range: 2,000 - 16,000 RPM
Weight: 475g (with muffler)

Center distance width across mounting holes: 1.7" (44mm)
Center distance length of mounting holes on same side: 0.69" (17.5mm)
Length from front of crankcase to backplate screws: 3.4" (87.3mm)
Width across mounting flanges: 2.0" (51.5mm)
Total height of engine: 3.43" (87.3mm)
Length from center of head to front of crankcase: 2.4" (61.8mm)
Widest width of crankcase neglecting mounting flanges: 1.4" (35.7mm)
Length from front of crankcase to center distance of front
mounting hole: 2.1" (53mm)
Height from crankshaft center to top of head: 2.8" (71.2mm)
Crankshaft thread size: 1/4-28

COMMENTS: Sport Model: 10x7, 11x6
Racing Model: 9x6
Scale Model: 11x6

For the GMS .47 engine with remote mounted needle, use GMEG1147.
To convert to a remote needle use GMEG7265 & GMEG7365

All GMS engines use the same owner's manual
If using Bisson Pitts one must use screws that come with the engine.

ACCESSORIES

THIS IS THE GMS .47 FRONT NEEDLE VALVE AIRPLANE ENGINE.
FEATURES: 2 NEEDLE CARB FOR SEPARATE HIGH AND LOW SETTINGS, HIGH SPEED NEEDLE
HAS HOLE FOR MUSIC WIRE EXTENSIONS, BALL BEARING SUPPORTED CRANKSHAFT, GLOW
PLUG, ROTATABLE MUFFLER W/PRESSURE TAP & GASKET
REQUIRES, 10-15% FUEL, BREAK-IN PROP, FUEL FILTER, FUEL TUBING, GLOW STARTER