Twenty-Five Years Ago in MA:
September 1981

• Plans builders are rewarded with four options this month. They are A.A. Lidberg's Davis D1K Scale CO₂-powered FF design, L.F. Randolph's RC One Step—a three-channel trainer for a .15 engine—Luther Hux's 1/72-scale Columbia Space Shuttle that can be carried aloft by a Falcon 56, and three CL 1/2A Goodyear racers in one plans set from John Penhallow: the Rivets, Misty, and La Jollita.

• Don Berliner presents Part 1 of an informative article covering 1913-1922 Schneider Trophy Races. The article contains three-views of six of the early Schneider winners, along with accounts of each airplane's races.

• This issue features the second part of Dominic J. Palumbo's "True Dynamic Scaling" article.

• Bob Meuser's report on the US Free Flight Championships in Taft, California, almost takes us there with his many pictures and colorful descriptions.

• New products include the $299.95 Isotronic Master Series 7 RC system that Tower Hobbies imports. For the beginner Estes Industries announces the Sky Hawk RC .15-powered trainer that is foam-core covered with vacuum-molded plastic for quick construction.
   
    Electroline Models introduces an interesting system for the CL flier: electric models using a hefty battery that stays in the center of the circle with insulated control wires. On-off control is provided by a thumb switch on the handle, and 15- to 20-minute flight times are expected.  MA

—Rich LaGrange
AMA Librarian

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