EAA (Experimental Aircraft Association) Sport Aviation Articles by George G. Spratt

Three extensive articles on the Spratt Controlwing published and copyrighted in June, 1974, July, 1974 and May, 1980 by EAA Sport Aviation are reprinted on the following webpages with their kind permission:

The ControlWing Aircraft (Part 1) by George G. Spratt
EAA Sport Aviation June, 1974

The ControlWing Aircraft (Part 2) by George G. Spratt
EAA Sport Aviation July, 1974

Ultralights and Single Surface Wings by George G. Spratt
EAA Sport Aviation May, 1980