Cessna 170
The vertical tail is built directly over the plans. Balsa shims (above) are used to center the bowed outline on the ribs and spars. A dowel joiner (above right) is fitted and glued into the elevator. The balsa spar is cut away first and the elevators notched to accept the dowel. With the vertical and horizontal stabilizer assemblies (at right) sanded to final shape, the hinges are fitted into the slots, but won’t be glued in until final assembly.
Building the model For those who still prefer scratchbuilding, full-size parts patterns are provided on the plans and are set up to transfer to 4 × 36- inch balsa sheets to make print wood. A list of Additional Materials and Components is also provided on the plans. For those who like to use laser-cut parts, a Parts Pack contain- ing laser-cut wood and a plastic cowl is avail-
able from
www.patscustom-models.com. Tail section: Make up the bowing pat-
terns for the vertical and horizontal stabi- lizer outlines using the patterns provided on the plans. I use 3⁄16-inch Artists Foam board, but standard corrugated cardboard is fine too. Bow the outlines using 1⁄16 × 1⁄8-inch medium balsa sticks around the forms and allow them to dry completely.
The tail section is built directly over the plans using the wood sizes shown. The
bowed outlines are spaced off the plans with 1⁄32-inch thick shims to center them on the ribs. Then, once the framing is done, the frames are lifted from the plans and sanded to an airfoil shape. Cut in the hinges and dry fit into the frames, but don’t glue them in until after the frames are covered.
CD441A © Carstens Publications
Full-size plans available through Carstens Bookstore
www.carstensbookstore.com 20
JULY 2012
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