Key facts
- Brand
- O.S. Engines
- Model
- MAX-61SX
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-08
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O.S. MAX-61SX/RX-H RING WC Engine Owner's Instruction Manual
This instruction manual covers the safe operation of the O.S. MAX-61SX and 61RX-H RING "WC" internal combustion engines designed for FAI World Championship Class F3C model helicopters. It includes critical safety warnings regarding fuel toxicity, flammability, and carbon monoxide exhaust, as well as instructions on mounting the engine securely to prevent distortion.
Read onlineO.S. Engines MAX-61SX specifications
| Displacement | 9.95 cc (0.607 cu.in.) |
|---|---|
| Bore | 24.0mm (0.945 in.) |
| Stroke | 22.0mm (0.866 in.) |
| Practical R.P.M. | 2,000~18,000 r.p.m. |
| Power output | 2.2 bhp / 16,000 r.p.m. |
| Weight (SX-H) | 600g(21.2oz.) |
| Weight (RX-H) | 597g(21.1oz.) |
Source: O.S. MAX-61SX/RX-H RING WC Engine Owner's Instruction Manual
All O.S. Engines MAX-61SX documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What type of fuel is recommended for this engine?
The manual recommends model glowplug engine fuel of good quality, preferably containing a small percentage of nitromethane.
From: O.S. MAX-61SX/RX-H RING WC Engine Owner's Instruction Manual
What is the recommended power source for heating the glow plug?
A 2-volt rechargeable lead-acid cell (at least 5Ah) is preferred over a large heavy-duty 1.5 volt dry cell.
From: O.S. MAX-61SX/RX-H RING WC Engine Owner's Instruction Manual
Which glowplug is recommended for these engines?
The recommended O.S. plug is No.8.
From: O.S. MAX-61SX-HRING/MAX-61RX-HRING Engine Instructions
What type of fuel is recommended for best throttle response?
A fuel containing 10% to 30% nitromethane is recommended for the best throttle response.
From: O.S. MAX-61SX-HRING/MAX-61RX-HRING Engine Instructions