To work out what the units are for speed you need to know the units for distance and time. Write the formula A2 D224 Press Enter on your keyboard. Speed Distance Time.
It is equal to the distance traveled divided by the time.
Secondary is the maximum design airspeed which cannot exceed about 280 mph for a conventional single rotor helicopter. Looking for speed feed calculators and recommendations for your Dapra tooling. The metric unit of the result will depend on the units you put in. Surface Feet Per minute Cutting speed Speed at which tip of tool travels through material.