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All Products > "L-OS34810 OS FSa-81 With F5030 Silncer"
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L-OS34810OS FSa-81 With F5030 Silncer£291.99
OS FSa-81 With F5030 Silncer - L-OS34810
The new FSa-81 is a direct replacement for the FS-70 Surpass II, offering greater power and throttle precision in a compact and lightweight design. The crankcase mounting dimensions allow the FSa-81 to slot into the same mount that an FS-70S II would for an instant power upgrade.

Like the FSa-56, the crankcase breather system has now been incorporated inside the engine to negate the need for an external vent and the excess oil that emanates from it. A propeller locknut assembly is of course standard.

The new F-5030 silencer is very effective, thanks to its internal baffle and carefully matched internal volumes and passages. The design allows a huge range of outlet positions to accommodate almost every model. Even the distance away from the engine can now be adjusted. The latest 60RA carburettor features a 'constant velocity' inlet for improved throttle response and reduced spitting.

SPECIFICATION
Bore:27.7mm (1.091")
Displacement:13.26cc (0.809 cu.in.)
Power Output:1.3PS @ 11,000rpm
Practical RPM:2,200 - 12,000
Propeller Range:13 x 7-9, 14 x 6-7
Silencer:F-5030
Stroke:22.0mm (0.866")
Weight:556g (19.63oz)
OS
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In stock for immediate despatch.
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£291.99

Part No: L-OS34810
Item Name: OS FSa-81 With F5030 Silncer
Brand: OS
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