Steve,

L/D max angle of attack is usually less than the critical angle of attack. I think you are blending L/D curves with Coeficient of Lift/AOA curves. L/D max AOA and critical AOA are different.. Tell us what you flew - I too, flew in the U.S. Air Force, like many others here on RCU.

Kurt

USAFA '88
Big Mouth Block 30!