Full Size Printed PLANS Control Line Stunt Wingspan 38” Engine .15 AMBUSH 15 BY ALLEN W. BRICKHAUS
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This is for Full Size Printed PLANS
Not a KIT or MODEL
Aspiring CL stunt pilots can learn the basics quickly and inexpensively with this .15 powered all-sheet balsa scale-up of a Bill Netzeband design.
FULL SIZE PLANon a SHEET 46” x 24”
THREE PAGES of BUILDING NOTES, ILLUSTRATION and PHOTOS
BY ALLEN W. BRICKHAUS
Thanks toAllen W. Brickhaus For given his permission to sell this plan
My interest in the Ambush 15 came in talk with my friend Jim Pacourek. He, like many other beginners in CL stunt, was having a learning curve problem. Building a fully ribbed stunt trainer was time consuming, and a lack of good weather prompted few flying sessions. Crashes were more the norm than the exception. Pacourek's master guru, Iirn Renkar, suggested putting together a small 1/2A design called the Ambush, a fully-sheeted stunter developed by Bill Netzeband for the Testor 8000 engine. In Mr. Netzeband's words: "My first sketch and data sheet is dated 5/10/77. The concept was to create a 1/2A machine that was fully aerobatic, using the reed valve 1/2A engine power level. The structure was laid out to be bulletproof, and it was designed to bounce when accidentally landed in the grass. Since it was to be a rank beginner's project, I elected to hold material costs to a minimum. Thus, the parts all came out of two sheets of 1/8 x 3 x 36 balsa. The assembly was designed to be pinned flat on a work surface to align the critical surfaces. The controls were all commercially available, at the time.