OSM19218
OS Engines MAx-120Ax Ring (70d) with O Silencer
$449.99
Out of stock
O.S. Max Two-Stroke 1.20AX ringed engine without a muffler.
Looking for spare parts or upgrades?
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Features
- Ideal for 3D, precision and sport flying.
- Mounts in same space as the .91FX (actual mounting dimensions vary slightly, see SPECS)
- Steel piston ring and liner, aluminium piston
- Carburetor: 70D with rearward angled needle valve for safety.
- Glowplug: O.S. #8 supplied with engine, A5 can also be used.
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Product Information
O.S. Max Two-Stroke 1.20AX ringed engine without a muffler.
What you need
- Fuel: Two stroke with 20% lubricant and 5-20% nitromethane
- Muffler: E-5020 Power Box
- Propeller: 15x10-12 or 16x8-10
- Field Equipment: Glow starter, fuel filter, fuel pump, fuel tubing
Specs
- Displacement
- 1.218 cu in (19.96cc)
- Bore
- 1.197" (30.4mm)
- Stroke
- 1.083" (27.5mm)
- Crankshaft thread size
- 5/16-24
- Practical RPM
- 1,800 - 9,500 RPM
- Power Output
- 3.1ps/9000 RPM
- Weight
- 22.82oz (647g) without muffler
- Weight
- 7.074oz (219.2g) with 90? adapter installed
- Weight
- 7.907oz (245g) with extension installed
- 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)