In the context of an aircraft’s spark ignition (SI) engine, the “Radius of the cylinder bore” is half of the bore diameter, which is the inner diameter of the engine cylinder where the piston moves. It’s an essential parameter in engine design.
Formula for Radius of Cylinder Bore (r):The radius (r) of the cylinder bore is half of the bore diameter. So, if the bore diameter is ‘D,’ then the radius is given by r = D / 2.
- Â Radius (r) is typically measured in meters (m).