Perhaps one of you ole timers can assist with information on a CL kit I purchased at an estate sale. It is a NAvion manufactured by the Engineering Development Company, Escondido, Ca. It appears to be from the early fifties as the plans and box label show a spark plug engine. Also, most of the construction is of the old balsa block type. Any assistance would be appreciated.

The Model Aviation plans service has the plan for the EDCO Navion.  The plan number is 23572, and my list says it is (or was) $10.  Also says the wingspan is 32"