Hi George,
You found an interesting note in Radeckes book. The order indeed exists and deals with Tschako for generals. The eagle is described as the "Altpreu�ischen fliegenden Adler (Vergoldet)"
I am not sure if this was the insignia as shown by Radecke(and in the pictures above). That design was introduced a few months later and is described as the new flying eagle as opposed to the description of Juli 1933 which describes the "Old flying eagle"

No mentioning of a version for officers and EM/NCO