Assembly is easy. Wings are one piece (above) and everything fits perfectly. The BP 2814-8 motor (below) includes the pro adaptor and motor mount for just $30. The included prop adaptor is too short for spinner use.
ARF, some finer points are not covered in the directions but will be here. Here’s an ex- ample. Determine what performance de- mands will be placed on your Pitts 12. For regular aerobatics, push each control sur- face tightly against its flying surface. If 3-D is in your Pitts’ future, leave a 1⁄16-
inch gap instead. Then seal the gap using clear covering or tape to maintain control stability (no flutter) and to equalize effec- tiveness. For 3-D, all control surfaces should travel 30 degrees in each direction but can’t without the small gap. When installing the ailerons, work from the top side to insure the top side trim designs are aligned. The metal, 4mm lower wing mounting
bolt does not fit into the fuselage blind nut. The directions state the bolt should be nylon but there was none in the kit. So, just re-tap the nut, using oil, for a 2-inch 6-32 bolt. This is easier than replacing the blind nut and maintains the factory’s perfectly placed wing positioning. If your transmitter per- mits, use separate channels for the twin aileron servos rather than a “Y”-cord. Con- sidering the four ailerons’ 30-degree move- ment, the airplane will need differential to avoid adverse yaw at slow 3-D speeds. The tail surfaces are conventionally installed into fuselage slots which, happily, were per- fectly positioned for a level stabilizer and vertical fin. Obviously, install the rudder after eleva-
tor installation is complete. In this airplane, the wire tail wheel’s torque rod was bent 180 degrees out of phase. Carefully straighten it
FLYING MODELS The hardware package is fairly extensive but would benefit from improved quality control. 31
and then bend it 90 degrees the other way from a slightly different spot from the origi- nal bend to insure the tortured wire doesn’t break. When mounting the rudder control horn, drill through the lower hinge for extra durability. The rudder and elevator push - rods were about 7 inches too long. After the servos are installed, cut them to the proper length from the “Z”-bend end and re-do the “Z”.
Bolt on the front cabane struts first and tighten firmly. Leave the rear cabane struts
slightly loose until the wing is mounted and aligned. When epoxying the eight interplane and four cabane strut mounts in place, re- member to remove the covering from their glue spots. Use light-duty thread locking compound on all bolts when finally attach- ing the top wing as this conveniently sized airplane will probably be kept fully assem- bled between flying sessions. The landing gear bolts nicely onto the fuselage. But the 3mm axles supplied are too short. Replace them with 1¼-inch long 4-
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