HobbyStores
Sort By:
Important Links
Part No:
L-IRV4362
Item Name:
Irvine 36 Ring R/C Helicopter Mkii
Our Price:
£78.29
Irvine 36 Ring R/C Helicopter Mkii - l-irv4362

The Irvine 36 helicopter engine features a ringed piston/liner assembly for easy starting and forgiving handling that makes this an excellent choice for the novice pilot. Features twin ball races for durability, and a high precision twin needle carburettor for smooth progressive throttle response.
SPECIFICATION
Bore:20.5mm (0.807")
Displacement:5.94cc (0.36cu.in.)
Power Output:1.1PS @ 19000 rpm
Practical RPM:3,000 - 20,000
Irvine

Supplier stock. Despatch will take 3-5 days longer than our standard delivery time.
£78.29
Part No: L-IRV4362
Item Name: Irvine 36 Ring R/C Helicopter Mkii
Brand: Irvine
Part No:
L-IRV4393
Item Name:
Irvine 39 Abc R/C Helicopter
Our Price:
£94.49
Irvine 39 Abc R/C Helicopter - l-irv4393

A phenomenally powerful helicopter engine that produces massive levels of torque. Features an ABC piston/liner assembly and twin ball races for enhanced durability. The twin needle precision carburettor ensures razor-sharp throttle response. Best suited to the latest generation of 'larger' 30 size machines.
SPECIFICATION
Bore:21.20mm (0.835")
Displacement:6.35cc (0.39cu.in.)
Power Output:1.4PS @ 20000 rpm
Practical RPM:3000 - 21000 rpm
Irvine

£94.49
Part No: L-IRV4393
Item Name: Irvine 39 Abc R/C Helicopter
Brand: Irvine
Part No:
L-OS14000
Item Name:
OS O.S. Max 37SZ-H Ring w/o Drive W
Our Price:
£144.99
O.S. Max 37SZ-H Ring w/o Drive Wash - l-os14000

The brilliant new O.S. 37SZ-H is the perfect choice when you want the ultimate in performance from your 30 class helicopter. Features a super-rigid crankcase, ringed piston/liner assembly, and a new carburettor for precision control, suitable for use with push-pull set ups. An outstanding performer.
SPECIFICATION
Bore:20.5mm (0.807")
Displacement:6.07cc (0.37cu.in.)
Power Output:1.4PS @ 18000rpm
Practical RPM:2,000 - 21,000
OS

Supplier stock. Despatch will take 3-5 days longer than our standard delivery time.
£144.99
Part No: L-OS14000
Item Name: O.S. Max 37SZ-H Ring w/o Drive Wash
Brand: OS
Part No:
L-OS15470
Item Name:
OS O.S. Max 46FX-H Ring
Our Price:
£125.99
O.S. Max 46FX-H Ring - l-os15470

A new, high performance 46 class heli engine with a ringed piston and fitted with a Type 40C carburettor developed for helicopter use.Very powerful, but easy to handle and reliable. Its features include a large heatsink head for improved cooling, twin ball raced crankshaft and identical mounting hole pattern, crankshaft thread and external dimensions to its predecessor, the popular 46SF-H.
SPECIFICATION
Bore:22.0mm (0.866")
Displacement:7.45cc (0.455 cu.in.)
Power Output:1.62 bhp @ 16,000 rpm
Practical RPM:2,000-17,000
OS

£125.99
Part No: L-OS15470
Item Name: O.S. Max 46FX-H Ring
Brand: OS
Part No:
L-OS15550
Item Name:
OS O.S. Max 50SX-H Ring Hyper
Our Price:
£191.39
O.S. Max 50SX-H Ring Hyper - l-os15550

The ultimate 50 class helicopter engine. Features a CNC machined cylinder head, for increased power with improved cooling, twin ball races, and a newly designed high performance carburettor for razor-sharp control of the immense power and torque available. Outstanding quality, with performance to match.
SPECIFICATION
Bore:22.0mm (0.866")
Displacement:8.17cc (0.50cu.in.)
Power Output:1.9PS @ 17000rpm
Practical RPM:2,000 - 20,000
OS

Supplier stock. Despatch will take 3-5 days longer than our standard delivery time.
£191.39
Part No: L-OS15550
Item Name: O.S. Max 50SX-H Ring Hyper
Brand: OS
Part No:
L-OS15630
Item Name:
OS O.S. Max 55Hz Hyper
Our Price:
£209.99
O.S. Max 55Hz Hyper - l-os15630
Click here to see more images.

The max 50SX-H Hyper has established an enviable reputation for power, reliability and ease of use. The Max 55HZ Hyper moves that to a whole new level!Designed primarily with the demands of the 3D pilot in mind, the 55HZ Hyper delivers .61 size performance in a .46 size crankcase. That power comes from the extensive experience that O.S.
SPECIFICATION
Bore:23mm (0.91")
Displacement:8.93cc (0.55cu.in)
Power Output:2.1PS @ 17,000rpm
Practical RPM:2,000 - 20,000
OS

Supplier stock. Despatch will take 3-5 days longer than our standard delivery time.
£209.99
Part No: L-OS15630
Item Name: O.S. Max 55Hz Hyper
Brand: OS
Part No:
L-OS15650
Item Name:
OS O.S. Max 55Hz-R
Our Price:
£251.99
O.S. Max 55Hz-R - l-os15650
Click here to see more images.

The latest engine in the 600/50 helicopter class borrows much of its technology from the fabulous Max 91HZ-R, to provide class leading power under the most demanding of 3D manouevres.

The latest DRS system (Demand Regulator System) uses a crankcase pressure tap-off to pressurise the fuel tank via a one way valve.
SPECIFICATION
Bore:23mm (0.91")
Displacement:8.93cc (0.55cu.in)
Power Output:2.1PS @ 17000rpm
Practical RPM:2,000 - 20,000
OS

Supplier stock. Despatch will take 3-5 days longer than our standard delivery time.
£251.99
Part No: L-OS15650
Item Name: O.S. Max 55Hz-R
Brand: OS
Part No:
L-OS17930
Item Name:
OS O.S. Max 61SX-H Ring World Champ
Our Price:
£179.99
O.S. Max 61SX-H Ring World Champion - l-os17930

An uprated version of the 61-SX-H, this engine is aimed at FAI F3C competition pilots - hence the World Championship suffix to the name.Performance has been increased by the use of a modified Type 60B carburettor, which also makes the engine easier to adjust and set-up - confirmed by exhaustive flight testing and early F3C contest results.
SPECIFICATION
Bore:24.0mm (0.945")
Displacement:9.95cc (0.602cu.in.)
Power Output:2.2 bhp @ 16,000 rpm
Practical RPM:2,000 - 18,000
OS

Email me when availabe!Out of Stock
£179.99
Part No: L-OS17930
Item Name: O.S. Max 61SX-H Ring World Champion
Brand: OS
Part No:
L-OS17940
Item Name:
OS O.S. Max 61RX-H Ring World Champ
Our Price:
£199.99
O.S. Max 61RX-H Ring World Champion - l-os17940

As with the engine above (L-OS17930) this is designed expressly for FAI F3A competition, the O.S. Max 61RX-H Ring is the engine to install in your competition helicopter.
SPECIFICATION
Bore:24.0mm
Displacement:9.95cc
Power Output:2.2ps @ 16,000rpm
Practical RPM:2,000 - 18,000rpm
OS

£199.99
Part No: L-OS17940
Item Name: O.S. Max 61RX-H Ring World Champion
Brand: OS
Part No:
L-OS18620
Item Name:
OS O.S. Max 91HZ-PS Ring
Our Price:
£305.99
O.S. Max 91HZ-PS Ring - l-os18620
Click here to see more images.

Designed primarily for the 3D flight and dramatic aerobatic manouevres.. Compared to the old 'Hyper' the new 91HZ-PS offers improved hovering stability as well as power at high speed to meet the further sophisticated 3D competition manouevres. A new design piston and crankshaft reduces vibration to provide further, stable torque over the entire RPM range.
SPECIFICATION
Bore:27.7mm
Displacement:14.95cc
Power Output:3.5PS @ 15,000rpm
Practical RPM:2,000 - 16,000
OS

Email me when availabe!Out of Stock
£305.99
Part No: L-OS18620
Item Name: O.S. Max 91HZ-PS Ring
Brand: OS
Showing 1 - 10 of 24 Results

Show items per page.
<Previous  Page: 1 2 3   Next >


Newsletter Sign Up
Follow HobbyStores on Twitter
HobbyStores YouTube Channel
HobbyStores BloggerHobbyStores Facebook
Verified by Visa
Mastercard SecureCode