Laddie chose to construct the model’s five-cylinder dummy engine (above left) from a combination of cardboard tube and balsa. The engine was painted black and glued to the firewall for a realistic look. The completed Canova PC-
O.D. aluminium or plastic tubing (21). Glue the tubes into the groves. On the lead- ing edge, mark the location of the 1⁄4-inch wide notches for the hinge brackets and cut the notches out. From 1⁄16-inch aircraft plywood or fiber-
glass, cut out eight hinge brackets (13). Drill a 1⁄16-inch hole in each bracket and in- sert and glue a 1⁄4-inch long tube to each bracket. Slide the piano wire into the tubes. Insert the brackets into the slots and push the wire all the way to the other end of the control surface. Now position each bracket inside the slots and glue them to the wing.
Insert the tail skid wire (14) into the alu- minium tube (17) and bend the top end to 90 degrees. Make the landing gear. Bend the main strut (15) to shape and cut to the
140 (above right) sits on the runway awaiting its maiden flight. Despite the fact the model only has a tail skid, Laddie found the ground handling of the model to be very effective.
proper length. Do the same thing for the auxiliary struts (16). Temporarily insert the landing gear struts into the holes in the plywood supports (9). At the bottom where the landing gear struts meet, wrap the joint with copper wire and solder them together.
Make the fin and the rudder from 3⁄16-inch balsa strips as shown on the drawing. In the top sheeting over the rib W1, cut a slot and glue in the fin. Cover the model. Install the landing gear. Install all control surfaces and connect them to the servos. Install the motor. The dummy engine can be made from the cardboard or plastic tube. The inside of the tube has to be a slightly larger diameter than the motor. The five cylinders are made from balsa. The whole dummy engine was painted black and
glued to the firewall with a clear silicone type of sealer.
Install the battery. The battery is held to the floor with hook and loop material. Check the c.g. If necessary, slide the battery to ad- just the c.g. or use a different weight battery.
Flying
The takeoffs can be made from a hard sur- face or short grass. In the air, the model is very stable and yet responsive to commands. The model will loop and roll, but just the sight of this unusual plane in the air is enough for me and hopefully for you. The landings are non-issue.
The only thing I am missing is having more information about the designer, Mr. Canova. I would like to know what made him to come up with this unorthodox design.
List of Materials by Number
W1 – 1/8″ balsa sheet W2 to W6 – 3/32″ balsa sheets 1 – 1/4″ × 1/4″ balsa 2 – 1/4″ × 1/8″ balsa 3 – 1/16″ balsa sheet 4 – 1/8″ plywood 5 – 1/4″ balsa sheet 6 – 1/16″ balsa sheet 7 – 5/8″ balsa sheet 8 – 1/8″ balsa sheet 9 – 1/8″ plywood 10 – 1/16″ plywood 11 – 1/32″ plywood 12 – 1/16″ balsa sheet 13 – 1/16″ plywood 14 – 1/16″ piano wire 15 – 5/64″ piano wire 16 – 1/16″ piano wire 17 – 1/16″ i.d. aluminium tubing 18 – 1/16″ plywood 19 – 1/8″ balsa sheet 20 – 1/8″ balsa sheet 21 – 1/16″ O.D. aluminium tubing
The unorthodox shape of the Canovamakes it stand out, yet performance is like any other sport model. FLYING MODELS
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