Design Equivalent Cruise Speed

The relationship between the equivalent air-speed and the true air-speed is given by:

..\Images\INFO0414_wmf.gif

where:

..\Images\INFO0415_wmf.gif

is the equivalent air-speed.

..\Images\INFO0416_wmf.gif

is the true air-speed.

..\Images\INFO0417_wmf.gif

is the ratio of air density at altitude to that of sea-level.

Note:

..\Images\INFO0418_shg.gif