Champ (oz1643)

About this Plan

Champ. Control line gas profile model. ED Bee motor shown.

Planfile includes full build instructions.

Quote: "The CHAMP is a prefabricated controliner intended primarily for the ED Bee, DC Spitfire or Mills .75 diesels - which all feature integral fuel tanks. However, the motor mount provided is also suitable for other motors of similar capacity - but when using these it will be necessary to attach a 15 cc KK team racing tank to the model, as detailed on the plan.

The model makes an ideal trainer for two or three-in-a-circle flying. For rapid assembly, study the plan, photographs and building instructions carefully. All main parts are numbered for easy reference.

1. Begin by placing the wing panel (1) over the full size pattern. Mark the positions of the 1/4 in wide centre section and the line guide (13) using a soft pencil or ball-point pen. Mark the tailplane (2) centre section in the same manner. Now carve (with razor blade or KK modelling knife) and sand the flying surfaces to the indicated sections - leaving the centre sections untouched. Round off the edges of the fin (7) - except at the base. Wrap sandpaper round a 3 x 1 in piece of 1/8 sheet for best results.

2. Push the 5/8 long bolt (6 BA) through the hole in the motor mount (3) from above. Now thread on three large washers, the bellcrank (5) and another washer that order. Check installation with plan, then screw on a nut just sufficiently to allow free bellcrank movement. Holding the nut in this position, screw on a second nut to lock the first.

3. Open up the large ends of the paper clips slightly and insert through the outer bellcrank holes. Squeeze the paper clips with a pair of pliers at the large ends, so that they fit snugly on either side of the bellcrank. Bind and cement as shown on plan. Hold the motor in place under the wing and press to make an impression with the bolt. Remove the mount and cut a recess in the wing to aoconunodate the bolt head. Insert the front end of the push-rod (4) through the inner of the two remaining bellcrank holes - then cement wing to the top of the motor mount, checking carefully for accurate alignment.

4. Round off the edges of the fuselage (6) except at the portion forward of the wing slot. Taper the last 3/8 in of the fuselage (in top view) to the same thickness as the fin at the extreme end. Place the tailplane (2) flat on the full size pattern and mark the position of the elevator hinge line. Cut the elevators free and cement the tailplane (front portion) in the fuselage slot - carefully checking alignment.

5. Cut the tape in eight pieces and cement these to the upper and lower surfaces of the tailplane at the rear edge. When dry, join the elevators to the tailplane by cementing the ends of the tape to the latter (see plan). Smear cement over the top of the wing (at centre) and underside of motor mount - then insert in the fuselage wing slot and put aside to dry. Cut away the surplus material from the hardwood line guide (13) and cement to the underside of the left hand wing panel.

6. Place one of the ply formers (8) flat on the full size pattern and line up the undercarriages on it. Cement the packing pieces (10 & 11) to the former to retain correct U/C line up and cement other ply former (8) over the top. Hold assembly firmly together with the 3/8 long (8 BA) bolts, nuts and washers. Cut slot for fuselage in 10 to match up with 8 formers..."

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