A needle valve extension that allows the main needle valve to be adjusted when the engine is mounted in a cowled model. Manufactured from flexible stranded wire so that the needle is protected from vibration damage.

The smallest engine in the OS range supplied with effective silencer a glow plug and rear needle.

Compact yet very powerful with minimum fuss and maximum reliability.
This engine is supplied with rear needle and quiet 871 muffler.

This reliable performance engine has all the design advantages of the latest LA series and is supplied with `safety` rear needle assembly and extended crankshaft.

Physically identical to the 40LA but with a 20%increase in power. Supplied with A3 glowplug as standard plus the highly effective E-3030 Silencer.

This low-cost lightweight engine is also reliable and easy to handle.

The needle valve is mounted at the rear of the motor allowing a safe distance from a spinning propeller.

This small high performance engine has a twin ball-raced crankshaft; full Schnuerle porting and large bore carburettor which all contribute to the 0.5PS power output.

Has great performance durability and easy safe handling from the rear mounted needle. It also features a twin ballraced crank and 892 silencer.

Exciting new addition to the `SX` range features include ringless O.S. piston and liner assembly; twin ballraced crankshaft; rear mounted needle and E-3030 silencer.

This first engine in the AX series features a new rear-mounted needle valve system that tolerates crash damage better.

Also features the new `P-Box` silencer and ringless piston and liner system.

Designed to combine maximum power with razor sharp throttle response within the smallest possible crankcase.

The dramatic AX fin styling is used for optimum cooling and rearward angled needle makes adjustments safer.

Offers high performance and durability plus easy handling. Features rear mounted needle; O.S ringless piston and liner and a large fin area for improved cooling.

The New 75AX is supplied with P-Box style muffler and 61A carburettor with angled needle valve.

The same crankcase dimensions as the 61FX make upgrading straightforward.

Offers 47% increase in power with almost no weight penalty; this 91FX has rear needle valve assembly with addition of a variable fuel inlet location and a ringed piston and liner.

Third engine in the AX series with a distinctive shape that is hard to ignore. Has peak power of 3.1PS at 9000RPM and features a neat needle valve and silencer system.

Largest engine in the FX series; it boasts an impressive bhp for its compact external dimensions.


The ringed piston allows easy starting and is supplied with the effective E-5010 silencer and locking propeller nut system.

Developed for small helicopters this high performance engine has a new large bore carburettor to provide stable hovering characteristics.

Features include twin ball raced crankshaft enlarged cylinder head and mounting holes.

Brings a new level of performance to `30-class` helicopters.


Features super-rigid crankcase; ringed piston and liner and optimised crankshaft for precision control power and smoothness.

The best `50-class` engine on the market. Features CNC cylinder head to give better power and improve cooling and new carburettor.

Produces copious quantities of power across the rev range without sacrificing its ability to perform precision hovering.

Features new stronger crankcase; 3-needle carburettor and liner/port design.

This totally new engine is likely to set the standard in competition flying over the next few years. Has unique `SZ` crankcase.

Based on the Max91SZ-H Ring it has additional O.S PD-07 pump and 60M-P carburettor.

Designed specifically for scale mechanics this rear exhaust engine has the convenience of a cast cylinder head.

Similar to the 91SX-H C-Spec but with the stunning new `Viper` head.

Gives improved power cooling and throttle response.