Bob Penko books & textbook
RC Modeler: Puffin II; Bi-fly; the Islander; Quarter Midgets; a Different Approach to Control Rods; Half-a Wire Wheels; Wind Effects
Clarence Lee Jim Bonar John D. Wood John Riley Jim Simpson Ken Willard Bob Lovejoy Bob Penko Jim Doty Dave Orr
R/C Modeler Corp /1970T Journal
