O.S.
O.S. GT55 Petrol (L-OS38000)
O.S. GT55 Petrol (L-OS38000) The biggest single cylinder engine made by O.S. so far is the first O.S. engine for many decades to...
O.S. FS-200 Surpass w/F-6010 Sil. (L-OS35940)
O.S. FS-200 Surpass w/F-6010 Sil. (L-OS35940) The largest, single-cylinder four-stroke engine that O.S. has ever made draws on...
O.S. FS120 Surpass III w/F-5020 Silencer (L-OS35540)
Ripmax O.S. FS120 Surpass III w/F-5020 Silencer (L-OS35540) An updated version of the FS120 MkII now fitted with an integral O....
O.S. FSa-110-P W/F-5040 Silencer (L-OS35420)
O.S. FSa-110-P W/F-5040 Silencer (L-OS35420) The FSa-110-P is a great engine to increase power when you want to replace a ...
O.S. FSa-110 w/F-5040 Silencer (L-OS35410)
O.S. FSa-110 w/F-5040 Silencer (L-OS35410) Designed specifically to offer more power and torque compared to a .91 size four...
O.S. MAX 91HZ-PS Ring (L-OS18620)
O.S. MAX 91HZ-PS Ring (L-OS18620) Designed primarily for the 3D flight and dramatic aerobatic manouevres. Compared to the old 'Hyper' the n...
O.S. FSa-81 w/F-5030 Silencer (L-OS34810)
O.S. FSa-81 w/F-5030 Silencer (L-OS34810) The new FSa-81 is a direct replacement for the FS-70 Surpass II, offering greater power and throt...
O.S. FSa-72 w/F-5030 Silencer (L-OS34720)
O.S. FSa-72 w/F-5030 Silencer (L-OS34720) Sharing the same mounting dimensions as the old FL-70 and FS-70U, the new FSa-72 is a simple bolt...
O.S. MAX 91HZ w/61E Carb Engine (L-OS18650)
O.S. MAX 91HZ w/61E Carb Engine (L-OS18650) Identical in most techincal respects to the original Max 91HZ Ring engine but now wi...
O.S. MAX 55HZ-R Engine (L-OS15650)
O.S. MAX 55HZ-R Engine (L-OS15650) The latest engine in the 600/50 helicopter class borrows much of its technology from the fabulous M...
O.S. FS-95V w/F-5050 Silencer L-OS30900
O.S. FS-95V w/F-5050 Silencer L-OS30900 The first in a completely new series of four stroke engines aimed squarlely at the sport and sca...
O.S. FSa-56 w/F-4040 Silencer (L-OS34300)
O.S. FSa-56 w/F-4040 Silencer (L-OS34300) The new FSa-56 from O.S. is the first engine in a completely new series of adv...
O.S. FS91 Surpass II w/F-4020 Sil. (L-OS35920)
O.S. FS91 Surpass II w/F-4020 Sil. L-OS35920 Developed from the popular FS 91 Surpass and honed to perfect...
O.S. MAX 120AX Ring w/E-5020 Sil. (L-OS19210)
O.S. MAX 120AX Ring w/E-5020 Sil. (L-OS19210) The distinctive shape is hard to ignore, and with peak power of 3.1hp at 9000rpm, you can be ...
O.S. MAX 120AX Ring w/E-5020 Silencer (L-OS19210)
O.S. MAX 120AX Ring w/E-5020 Silencer (L-OS19210) The distinctive shape is hard to ignore, and with peak power of 3.1PS at 9000RP...
O.S. MAX 95AX w/4040 Silencer (L-OS19120)
O.S. MAX 95AX w/4040 Silencer (L-OS19120) Designed to replace the 91FX yet retain the same mounting dimensions but with increased power and t...
O.S. MAX 55HZ Hyper (L-OS15630)
O.S. MAX 55HZ Hyper (L-OS15630) The max 50SX-H Hyper has established an enviable reputation for power, reliability and ease of ...
O.S. FS-62V w/F-4050 Silencer (L-OS30600)
O.S. FS-62V w/F-4050 Silencer (L-OS30600) The second engine in the new 'V' series of O.S. four strokes is targeted at bo...
O.S. MAX 75AX w/E-4040 Silencer (L-OS17400)
O.S. MAX 75AX w/E-4040 Silencer (L-OS17400) The third engine in the new ‘AX’ range of high performance two-stroke engin...
O.S. FS40 Surpass w/FS40S Silencer (L-OS35220)
O.S. FS40 Surpass w/FS40S Silencer (L-OS35220) The original 6.5cc FS-40 was O.S.'s second production single cylinder four stroke and th...
O.S. MAX 50SX-H Ring Hyper (L-OS15550)
O.S. MAX 50SX-H Ring Hyper (L-OS15550) The best '50-class' engine on the market just became amazing with the introduction of the ne...
O.S. MAX 37SZ-H Ring w/o Drive Wash (L-OS14000)
O.S. MAX 37SZ-H Ring w/o Drive Wash (L-OS14000) Following on from the concept developed in the 70SZ-H, the latest 37SZ-H brings a new...
O.S. MAX 32SX-H Ring w/o Drive Wash Engine (L-OS12986)
O.S. MAX 32SX-H Ring w/o Drive Wash Engine (L-OS12986) The ringed piston/liner assembly gives a lower compression on start-up wit...
O.S. MAX 15CV-A w/871 Silencer (L-OS11620)
O.S. MAX 15CV-A w/871 Silencer (L-OS11620) High performance from the smallest physical size is the name of the game as far as the Max 15CV-A is ...
O.S. OCA-170HV Brushless ESC(70A) (P-OS52012070)
O.S. OCA-170HV Brushless ESC(70A) (P-OS52012070) Suitable O.S.Brushless motors: OMA-3825-750 / OMA-5020-490 Specification Cell Count: 14-...
O.S. OMA-5025-375 Brushless Motor (M-OS5101400)
O.S. OMA-5025-375 Brushless Motor (M-OS5101400) Legendary O.S. quality in a brushless electric motor! The OMA-5025-375 provides strong, line...
O.S. OMA-5020-490 Brushless Motor (M-OS51013000)
O.S. OMA-5020-490 Brushless Motor (M-OS51013000) Legendary O.S. quality in a brushless electric motor! The OMA-5020-490 provides strong, linear power and is inte...
O.S. MAX 25LA Silv. w/E-2030 Sil. (L-OS12352)
O.S. MAX 25LA Silv. w/E-2030 Sil. (L-OS12352) The 25LA replaces its FP predecessor and offers the reliable performance you'd expect fro...
O.S. MAX 46LA Silv. w/E-3030 Silencer (L-OS13393)
O.S. MAX 46LA Silv. w/E-3030 Silencer (L-OS13393) Physically identical to the popular 40LA but with a 20% increase in power and no di...
O.S. OCA-150 Brushless ESC (50A) (P-OS52010050)
O.S. OCA-150 Brushless ESC (50A) (P-OS52010050) Suitable O.S.Brushless motors: OMA-3820-1200 / OMA-3825-750 / OMA-3815-1000 / OMA-3810-1050 Speci...
O.S. MAX 10LA Silv. w/871 Silencer (L-OS11411)
O.S. MAX 10LA Silv. w/871 Silencer (L-OS11411) Although the smallest engine in the O.S. range, the Max 10LA packs quite a punch, whilst producing an amazin...
O.S. OMA-3820-1200 Brushless Motor (M-OS51011000)
O.S. OMA-3820-1200 Brushless Motor Legendary O.S. quality in a brushless electric motor! This one is intended as a replacement of .25 class 2 stroke engines usin...
O.S. OMA-3825-750 Brushless Motor (M-OS51012000)
O.S. OMA-3825-750 Brushless Motor Legendary O.S. quality in a brushless electric motor! This one is intended as a replacement of .25 - .32 class 2 stroke engines using 3 or...
O.S. OMA-3820-1200 Brushless Motor (M-OS51011000)
O.S. OMA-3820-1200 Brushless Motor (M-OS51011000) Legendary O.S. quality in a brushless electric motor! The OMA-3820-1200 provides strong, linear power and ...
O.S. OMA-3815-1000 Brushless Motor (M-OS51010915)
O.S. OMA-3815-1000 Brushless Motor (M-OS51010915) Specification Connectors: 3.5mm (Inc.) Poles: 14 Length: 37.8mm Weight: 130g ...
O.S. Programmer for OCP-1 (P-OS52610001)
O.S. Programmer for OCP-1 (P-OS52610001) Program your OS electronic speed controller easily using this tiny digital programmer. You can program OS ESC using a ser...
