O.S. 95AX Ringed w/Muffler

Tower Stock# LXXMU4  •  Manufacturer Stock# 19120
O.S. 95AX Ringed w/Muffler (large view)
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Notes from our tech department:
This is the O.S. Max 95 AX ABL Aircraft Engine with Muffler.


Same mounting dimensions as the O.S. Max .75FX
Power Box muffler design provides more volume for increased power in
a very compact shape
Angular head design offers increased surface area for better cooling
Ball bearing-supported crankshaft
61C carburetor with diagonally placed needle valve eliminating
remote needle valve placement
Two year limited warranty


O.S. Max 95 AX ABL Aircraft Engine with E4040 muffler, carburetor,
#8 glow plug, needle valve extension illustrated instruction


Aircraft blend fuel containing 5%-20% Nitromethane with at least 18%
Propeller: 14x8, 15x6-8, 16x6-8
Glow starter and field equipment


Displacement: 0.949 cu in (15.55cc)
Bore: 1.091" (27.7mm)
Stroke: 1.016" (25.8mm)
Practical RPM: 2,000-16,000 RPM
Power Output: 2.9 PS, 2.86 HP/15,000 RPM
Weight: Engine, 20oz (567g)
Muffler, 6.28oz (178g)
Recommended Props: 14x8, 15x6-8, 16x6-8
Crankshaft thread size: 5/16-24
Distance from center of engine to drive hub: 2.6" (66.6mm)
Height from crankcase bottom to top of cylinder head: 4" (102mm)
Height/crankshaft center to top of cylinder head: 3.2" (81.3mm)
Width including mounting tabs: 2.4" (61mm)
Width below mounting tabs: 1.7" (42.6mm)
Width between mounting holes same side: 0.98" (25mm)
Width between mounting holes opposite side: 2" (52mm)
Diameter of muffler body: 1.8" (45mm)
Distance from Center of Engine to Exhaust Outlet: 4.4" (112mm)
Angle of muffler in relation to engine: 4

High Speed Needle: 1.5 - 2 turns out from fully closed
Low Speed Needle: 2mm gap between the needle and spray bar at full
throttle (looking down the neck of the carb)

jxs 6/23/09

See Tower Catalog page 173.
Easy RC: Engines
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