O.S. 55AX ABL .55 Airplane Glow Engine w/Muffler

Tower Stock# LXCRTR  •  Manufacturer Stock# 15612
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Notes from our tech department:
This is the O.S. Max .55 AX ABL Aircraft Engine
with the E3071 Muffler.


Same mounting dimensions as the O.S. Max .46 AXII
Advanced Bi-Metallic Liner process uses a double layer of plating
material rather than one thick layer. This helps the metal bond to
the cylinder and makes the plating more durable. Also, the plating
process is more consistent, resulting in a more precise fit between
piston and sleeve for better compression and longer life.
Angular head design offers increased surface area for better cooling
40K Carburetor with diagonally placed needle valve eliminating remote
needle valve placement
Two year limited warranty through Hobby Services beginning at date of


O.S. Max 55 AX ABL Aircraft Engine with E-3071 Muffler, 40K
carburetor, 8 glow plug, illustrated instruction manual, 3.5
(90mm) long needle valve, extension cable and two 3x35mm muffler


Aircraft blend fuel containing 5-20 Nitromethane with at least 18


Displacement: .545 cu in (8.93cc)
Bore: .91 (23mm)
Stroke: .85 (21.5mm)
Practical RPM: 2,000-17,000
Power Output: 1.75 PS, 1.68 HP16,000 RPM
Weight: 14.29oz (404g) wo muffler
4.23 oz (120 g) w muffler
Recommended Props: 11x6, 11x7, 12x6, 12x7, 13x6
Crankshaft thread size: 14-28
Distance from center of engine to drive hub: 2.4 (60.4mm)
Distance from center of engine to end of crankshaft: 4.4 (112.6mm)
Distancecrankshaft center to muffler exhaust outlet: 1.4 (36.7mm)
Height from crankcase bottom to top of cylinder head: 3.6 (91.1mm)
Heightcrankshaft center to top of cylinder head: 2.8 (72.6mm)
Width including mounting tabs: 2 (51mm)
Width not including mounting tabs: 1.4 (36mm)
Width between mounting holes same side: .69 (17.5mm)
Width between mounting holes opposite side: 1.7 (44mm)
Diameter of muffler body: 1.5 (38mm)
Angle of muffler in relation to engine: 4

jxs 010312



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