Turncoat (oz13078)

 

Turncoat (oz13078) by MJ Morris from Aeromodeller 1967 - plan thumbnail

About this Plan

Turncoat. Control line combat model. Wingspan 28-3/4 in, for 2.5 - 3.5 cc engines.

Quote: "The Latest in the Flying Wing Trend by Combat Exponent MJ 'Moggs' Morris.

MOST of Turncoat's features may be quite familiar to those aeromodellers who build and compete in the combat class of control line. They should be, as Turncoat has been developed from such designs as Razor Blade 64 (oz3236), September Warrior (oz5391), Dominator (oz2605), and Early Bird (oz3271) - all established APS favourites.

Taking all the best features from each of these models, a fast, manoeuvrable and virtually indestructible model has evolved. In the right hands it will prove to be a winner in the 1967 season. Having already won the South Midland Area Gala at Cranfield in prototype condition, flown by Mike Delaney of Northwood.

Construction: Commence construction by Blueing together the trailing edge which consists of 1/2 x 1/4 in hard balsa strip, 1/4 x 3/16 spruce and soft 1/4 in sheet, pin down to board and glue. Glue laminated tips together from soft 1/32 sheet, cross the grains and remember to insert brass lead out tubes into inboard tip. Make a 1/16 plywood rib template and cut ribs from medium close grained 1/8 balsa sheet and one centre 1/4 in sheet rib, making holes for controls in the inboard ribs. Pin 1 in sq hard balsa leading edge to building board and cement all ribs to it except the centre rib. After sanding trailing edge to shape, slot and glue to ribs on board. Shape the 1/2 in sq beech engine bearers, add spacer, glue and screw together. Remove framework from the building board and cement engine bearers over leading edge, add centre rib then allow to dry.

Cut out developed tank shape from tin plate and solder up with air vents and fuel feed pipes. Fix tank in position using Araldife, riblet W4 and 1/4 in sheet fillet. Cement on 1/16 bottom sheeting, and glue on laminated tips, adding 1/2 oz of lead weight to outboard tip.

Bind and solder Bowden cable extensions to 20 swg wire leadouts, solder to bellcrank, add 16 swg pushrod, bolting unit to 1/8 plywood bellcrank mount, then glue into position.

Add 1/8 sheet and 1/4 in sheet gussets, also cement top 1/2 in sheeting in place. Double cement 1/2 in soft balsa sheet fuselage sides and nose block to engine bearers. Carve and sand fuselage to streamline shape. Drill engine mounting bolt holes. Round off leading edge and sand the framework smooth.

Bind and solder loops on the end of lead out wires. Either bandage or fibre glass the engine pod wing joint area. Dope framework with one coat of clear dope, cover in nylon and apply three coats of dope. Cut 1/16 plywood booms, drill holes for the 20 swg wire hinge then cut 1/8 hard sheet elevator. Slide booms on to the hinge wire, bend to shape and sew it on with carpet thread and cement well.

Cover elevator with nylon, add 1/16 plywood elevator horn mounts and elevator horn. Double cement booms to model and fuel proof. Connect up control system. Bolt in your 2.5 cc - 3.5 cc engine/ silencer unit and Turncoat is finished.

To make Turncoat fly fast, build light but strong Aim for around 15 ozs. all-up weight, taking great care in choosing the right wood for the job. "

Turncoat, Aeromodeller, February 1967.

Direct submission to Outerzone.

Supplementary file notes

Article pages, thanks to RFJ.

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Turncoat (oz13078) by MJ Morris from Aeromodeller 1967 - model pic

Datafile:
  • (oz13078)
    Turncoat
    by MJ Morris
    from Aeromodeller
    February 1967 
    28in span
    IC C/L
    all formers complete :)
    got article :)
  • Submitted: 05/04/2021
    Filesize: 403KB
    Format: • PDFbitmap
    Credit*: Circlip, RFJ

Turncoat (oz13078) by MJ Morris from Aeromodeller 1967 - pic 003.jpg
003.jpg

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Scaling

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