# Comparing turboprop and turbofan

by balogun
Tags: comparing, turbofan, turboprop
 Sci Advisor P: 5,095 Yes. There is a, although outdated method, that is called thrust horsepower. It is uses a selected reference speed of 375 MPH that the math works out 1 pound of thrust to 1 HP. $$THP=\frac{T*MPH}{375}$$ Really, a more substantial and meaningful comparison is in thrust SFC or Thrust Specific Fuel Consumption. $$T_{SFC}=\frac{\dot{m_f}}{T}$$