Also known as FIV or cat AIDS, feline immunodeficiency virus is an infectious disease caused by a retrovirus belonging to the lentivirus family. It is in the same family as the feline leukemia virus (FeLV), and is similar to the HIV virus in humans. FIV infects both domesticated cats, lions, tigers, pumas and cheetahs.
This map only incorporates the wide-open throttle condition, but adding a third independent axis of throttle position can create a 3D performance map; it is noted that throttling directly affects efficiency via an inverse proportion, and maximum efficiency and minimum BSFC is realized at 100% throttle.
The above mechanical loss effects the stall torque as shown left. Stall torque of a geared motor can be calculated using the following formula: __Motor stall torque gear ratio efficiency. Speed reduction by means of a gear box results in increased torque. The reduction/increase is determined by the gear ratio and efficiency of the gear box.