FS56-a 4-Stroke Engine
A big performance boost for 40-size planes!
Ushering in a new era in O.S. 4-stroke technology: the FS56-a. It's the first in the alpha series, with the latest advancements for boosting your plane's performance.
- Mounts with no-mod ease in the same space as the 52FS.
- In addition to less noise, the muffler features a multi-positional manifold with a rubber that helps prevent oil leakage.
- A newly designed lubrication system eliminates the need for crankcase ventilation.
- The 40NA carburetor is equipped with a venturi that reduces the chance of fuel leaking out onto the cowl, while also creating more positive air/fuel flow.
It's like giving your 40-size plane a new lease on life!
[ Click here for a review by RC Power ]
- Specifications
- Exploded Views
- Parts Listing
- Accessories
- Gallery
Stock Number: OSMG0956
Displacement: 0.569 cu in (9.32 cc)
Bore: 0.945 in (24.0 mm)
Stroke: 0.811 in (20.6 mm)
Practical rpm range: 2,400-13,000
Output: 0.99 hp @ 10,000 rpm
Weight w/muffler: 16.26 oz (461 g)
Includes: 40NA carburetor, muffler
Recommended props: Sport & aerobatic; 13x6, 12x6-8; Scale: 13x6-7, 12x6-8
Displacement: 0.569 cu in (9.32 cc)
Bore: 0.945 in (24.0 mm)
Stroke: 0.811 in (20.6 mm)
Practical rpm range: 2,400-13,000
Output: 0.99 hp @ 10,000 rpm
Weight w/muffler: 16.26 oz (461 g)
Includes: 40NA carburetor, muffler
Recommended props: Sport & aerobatic; 13x6, 12x6-8; Scale: 13x6-7, 12x6-8
Primary Accessories
| Stock Number | Mfr Number | Product Description | Quantity Needed |
| GPMP2012 | GPMP2012 | Great Planes Standard ProGlo Starter w/Charger | 1 |
Field Equipment
| Stock Number | Mfr Number | Product Description | Quantity Needed |
Optional Accessories
| Stock Number | Mfr Number | Product Description | Quantity Needed |
| APCQ1207 | LP12070 | APC 12x7 Sport Propeller | 1 |
| APCQ1307 | LP13070 | APC 13x7 Sport Propeller | 1 |
| GPMG1061 | GPMG1061 | Great Planes Adjustable Engine Mount .40-.70 | 1 |
| GPMP2022 | GPMP2022 | Great Planes Standard ProGlo Starter w/Meter & Charger | 1 |
| HCAP3205 | HCAP3205 | Hobbico Panel Ready TorqMaster 90 | 1 |
| HCAP3335 | HCAP3335 | Hobbico Safety Stick Engine Starter | 1 |
| PAAP1453 | PT31 | Pacer Zap After-Run Engine Oil 1 oz | 1 |
| TOPQ5140 | TOPQ5140 | Top Flite 12x6 Power Point Propeller | 1 |
| TOPQ5145 | TOPQ5145 | Top Flite 12x8 Power Point Propeller | 1 |
| TOPQ5155 | TOPQ5155 | Top Flite 13x6 Power Point Propeller | 1 |
| TOPQ5235 | TOPQ5235 | Top Flite 20x8 Power Point Propeller | 1 |
