This is the 56SR helicopter engine from Y.S. Engines. The YS 56SR Heli Engine features the patented YS regulated fuel system for positive fuel flow during all types of flight conditions. The pressurized fuel system makes throttle response superior and is unaffected by tank level. YS 56 SR brings you even higher performance to flying in 50 class helicopter than ever before. This super powerful 56 size engine fits all helis that accept a 50 size engine, such as the T-Rex Nitro 600, Thunder Tiger X50 or JR Vibe 50 or Outrage Velocity 50.

Key Features

Proven fuel injection system for a consistent run and more power.
Fuel regulator system not affected by fuel tank level

Specifications

Displacement: 9.14cc
Bore: 23.0mm
Stroke:22.0mm
Engine (Only) Weight: 406 grams