Great Planes Super Sportster (original) User Manual
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Step 36
Check for adequate width clearance for your engine. If your 4 cycle and mount is over 2" wide for the
Sportster 20, 2-1/4" for the 40 and over 2-5/8" for the 60 size, you'll need to relieve the 3/8" or 1/2" balsa nose
blocks and the 3/8" or 1/2" filler pieces in the engine mount area. Or you can custom make 3/8" balsa nose
side blocks as shown in Figure 5. Now follow step 36 in the first part of this book about gluing these side
pieces to the fuselage.
Next, if desired, add a front bulkhead to the engine mount as shown on the drawings on pages 33 through
37. Make this Bulkhead from 1/8" plywood. Once the front Bulkhead is epoxied in, drill the front of this
bulkhead mount for 4-40 bolts. Then tap the mount and install 4-40 bolts.
RELIEVE AS SHOWN
Figure 4
IF MOUNT WIDTH EXCEEDS THE SPACE AVAILABLE.
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