Description
OSM19210 O.S. 120AX Ringed 1.20 Airplane Glow Engine w/Muffler
Note: Graves RC Coupons are not applicable with this product
This is the O.S. Max Two-Stroke 1.20AX Ringed Engine with Muffler.
| FEATURES |
Model Application: Ideal for 3D, Precision and Sport flying
Mounting Application: Mounts in same space as the .91FX (actual
mounting dimensions vary slightly, see SPECS)
Internal Construction: Steel piston ring and liner, aluminum piston
Muffler: E-5020 "Power Box" with extension and 90° adapters
Carburetor: 70D with rearward angled needle valve for safety
Glowplug: O.S. #8 supplied with engine, A5 (OSMG2693) will also work
Warranty: Two-year limited
| INCLUDES |
O.S. Max Two-Stroke 1.20AX Ringed Engine with E-5020 Power Box
Muffler, #8 glow plug, muffler adapter, prop washer and lock nut,
needle valve extension cable,instruction manual and decal sheet,
two muffler screws, two muffler extension bolts, two long muffler
bolts.
| REQUIREMENTS |
Fuel: Two-Stroke with 18% lubricant and 5-20% nitromethane
Propeller: 15x10-12 or 16x8-10
Field Equipment: Glow starter, fuel filter, fuel pump, fuel tubing
| SPECIFICATIONS |
Displacement: 1.218 cu in (19.96cc)
Bore: 1.197" (30.4mm)
Stroke: 1.083" (27.5mm)
Practical RPM: 1,800 - 9,500 RPM
Power Output: 3.1 PS, 3.06HP/9000 RPM
Weight of engine: 29.0oz (823g) with muffler
Weight of muffler: 7.074oz (219.2g) with 90° adapter installed
Weight of muffler: 7.907oz (245g) with extension installed
Crankshaft thread size: 5/16-24
Distance Between Mounting Holes Same Side: 0.98" (25mm)
Distance Between Mounting Holes Opposite Side: 2.3" (58mm)
Distance Center of Crankcase to End of Crankshaft: 4.3" (109.5mm)
Distance Center of Crankcase to Drive Hub: 2.7" (69.8mm)
Width Between Mounting Tabs: 2.6" (67mm)
Width of Crankcase Below Mounting Tabs: 1.8" (46.5)
Length from Backplate to End of Crankshaft: 5.5" (139.9mm)
Length from Backplate to Drive Hub: 3.9" (100.2mm)
Height/Bottom of Crankcase to Top of Cylinder Head: 4.3" (109.2mm)
Height/Bottom of Mounting Tabs/Top of Cylinder Head: 3.4" (85.7mm)
Distance center to center of muffler mounting holes: 48mm (1.89")
Needle Settings: High Speed: 2 - 2.5 turns out from fully closed
Low Speed: 3/4 turn out from fully closed with the
throttle fully closed
| COMMENTS |
For version without muffler, order OSMG0651. The version without the
muffler does not include the muffler extension or the 90° adapter.
At this time one would not be able to use the muffler extension and
90° adapter at the same time. The long muffler bolts are too long.
Manuals:
Additional Information
Cylinders: |
1 |
Displacement: |
1.20 ci (19.6cc) to 1.59 ci (26.0cc) |
Parts & Accessories: |
Nitro (2-Stroke) |
