Background of Loftin's statistic

Loftin determined a statistic which sets the landing field length in relation to the square of the approach velocity.
Remodelled after the velocity it gives the linear equation:

Loftin calculated a number of aircraft; twin-, three-, four-engined, wide-body and narrow-body aircaft and gets the following factor:

The result equation is now:

Equation characters - explanation page   Back to Landing Field Length