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Singapore Hobby Supplies Pte Ltd
Distributor of R/C Products since 1972 and Authorised Service Center for Futaba radio systems

 

 

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Aircraft

Max-BGX-1
Max-160FX EFI
Max-160FX Ring
Max-140RX EFI
Max-140RX
Max-108FSRring
Max-91FX
Max-65LA
Max-61FX
Max-50SX Ring
Max-46/40FX
Max-46/40LA
Max-32SX
Max-25FX
Max-25LA
Max-15CV-A
Max-15LA-S
Max-10LA

Helicopter

Ducted fan

Car

Marine

Single/Multi

 

OS 91SX-H Ring C-Spec VIPER &
OS 91 SX-H Ring C-SpecPS VIPER

OS 91SX-H C Spec Viper

The latest range of OS helicopter engine installed with VIPER twin-plug head made by OMI, USA. The twin-plug head will give you more power while the material of the head provides a very effective cooling system.

The Viper series also includes a new low-friction piston that offers a more stable hovering as well as broader power band.

This engine comes in 2 version:

  1. OS 91SX-H Ring C Spec VIPER (without pump) &
  2. OS 91SX-H Ring C SpecPS VIPER (with pump)
91sx-h C Spec Viper Twin Head
OS Viper Cylinder Head
OS 91SX-H C Spec Viper Carburettor
91SX-H C Spec Viper
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(Click here to view the detailed engine parts)

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