A patient has plaques on the extensor surfaces of both elbows and on the face with minimal scaling and pruritis. What is the most appropriate diagnosis?

Mach tuck can only occur after the aircraft passes its critical Mach number

Swept wings reduce the onset of shock waves by breaking down the total velocity over the wing into two components: chordwise flow and flow

A jet aircraft’s operating ceiling, occurs when the aircraft reaches its MMO which is the

Coffin Corner in aircraft performance refers to the

The expression for rate of climb is 

As temperature decreases, the speed of sound

Given: A Citation jet is cruising at a velocity of 492-mph (1-mph = 1.47-ft/sec) at an altitude of 33,000-ft, where the ambient air density is 7.9656X10-4 slugs/ft3.  The aircraft weight and wing planform areas are 15,000-lbs and 342.6-ft2 , respectively. The drag coefficient at cruise is 0.015. Calculate the lift coefficient (two decimal points) and the lift-to-drag ratio (nearest whole number)  

The variable in the lift equation that gives the greatest influence on lift is

Wing aspect ratio is defined as