The easy choice in sport performance!
Why burn daylight fiddling with a finicky motor? Take the easy way out, with an engine that’s as powerful and dependable as the day is long: LA-Series engines from O.S. are flier favorites because they are easy: easy to afford, easy to run, easy to maintain โ and hard to beat for powerful, dependable performance. That’s because O.S. has worked hard to make them that way. With CNC-machined parts, for precise fit and finish. Heavy โwebbingโ on one-piece crankcases to resist distortion and prevent binding. A tall heat sink head and crankcase fins so LA engines cool better and last longer. And with nylon backplates that include an integral, molded-in fuel inlet and needle-valve holder.
Key Features
- One-Piece natural finish crankcase
- Non-ringed cylinder construction
- Two Bronze Crankshaft Bushings (sometimes called oilite bearings)
- Schnuerle Porting (Schnuerle scavenging)
- Side Exhaust
- Nylon Backplate with Remote Needle Valve
- #10G carb with remote needle valve assembly
Product Specifications
| Manufacturer # | 11532 |
| Cylinders | Single |
| Product Width | 1.6″ (40mm) at mounting tabs |
| Product Height | 2.4″ (61mm) crankcase botton to top of cylinder head |
| Prop Range | 7×5-6 x 8×4-5 |
| RPM Range | 2,500 – 18,000 |
| Bore | 0.598″ (15.2mm) |
| Crankshaft Type | Threaded |
| Power Type | Glow |
| Plug Type | O.S. A3 |
| Stroke | 0.539″ (13.7mm) |
| Muffler Weight | 1.5oz (42g) |
| Crankshaft Threads | UNF1/4-28 M5 |
| Benchmark Prop | 8×4 break-in |
| Displacement | 0.15 cu in (2.49 cc) |
| Oil Type & Content | At least 18% synthetic lubricant |
| Product Length | 2.16″ (56.5mm) from back plate to front of drive washer |
| Engine (Only) Weight | 4.87oz (138g) w/o muffler |
| Muffler Type | 2-piece aluminum |
| Carb Type | Rotary |







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