Billy Bunter (oz15087)


Billy Bunter (oz15087) by Colin Monk 2000 - plan thumbnail

About this Plan

Billy Bunter. Control line sports aerobatic model for 1.5 - 2.5 cc engines.

Quote: "Super sports stunt control line model for 1.5 - 2.5 cc engines. Billy Bunter, by Colin Monk.

I first saw Billy Bunter flying at this years Barton Bash and was immediately impressed with its smooth aerobatic performance, even in the hands of a self confessed novice, Colin himself. In the hands of an experienced flier the model is capable of the full repertoire of manoeuvres, with the centre of gravity brought forward and the control throws reduced it makes an ideal trainer for the learner pilot. I was so impressed with Colin's original model that I have built a 'Billy Bunter' for myself; which was flown for the first time at Old Warden recently. Suffice to say that the flying characteristics are beyond reproach, just as with Colin's original version. If you are a budding control-line flier or a regular sport flier 'Billy' is hard to beat.

'Billy Bunter' was conceived as a test bed for a new engine, a PAW .149 TBR, which I bought when our local model shop closed down. The model was built without a plan as with all my own designs. The basic shape was sketched in the margin of the local free rag, and I made up the construction as I went along, drawing the shapes straight onto the wood.

Construction couldn't be simpler or quicker, the original was built over a wet weekend. If you are anything like me you will probably change some of the construction details to suit your own referred methods, I know I do if I build from somebody else's plan.

Wing: I am neither a purist nor an expert at building, but this is how I did it. Start by pinning down the lower spar on the building board then add the ribs, followed by the top spar. The three centre ribs are 1/16 smaller all round to take the centre sheeting. When dry, pin down the lower TE sheeting to the board and glue the ribs to this, with the front of the ribs supported by a long strip of wood. When dry add the top TE sheeting. The LE is done in a similar fashion. Plane and sand a small radius on the front of the LE. Add the wingtips, gussets and bind and epoxy two pieces of brass or copper tubing to the underneath of the in-board wingtip for the leadout guides.

Add a 1/2 oz weight to the outboard wingtip to laterally balance the model. Epoxy in the bellcrank mounting plate. Fit the bellcrank and leadouts of your choice, I always use heavyweight Laystrate. Add the 1/16 centre sheeting leaving a large slot for the pushrod (don't fit it at this stage, you'll see why later). Give a good sanding all over and dust down well.

Fuselage: Start with the two 1/8 ply plates F1 and F2. Space the bearer cut-outs to suit your engine width, and the distance between the plates to suit your tank length. Drill the bearers to suit your engine..."

Direct submission to Outerzone.

Billy Bunter from R/C Model Flyer, October 2000.

Supplementary file notes

Article pages, thanks to RFJ.


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Billy Bunter (oz15087) by Colin Monk 2000 - model pic

  • (oz15087)
    Billy Bunter
    by Colin Monk
    from Model Flyer
    October 2000 
    34in span
    IC C/L
    clean :)
    all formers complete :)
    got article :)
  • Submitted: 27/01/2024
    Filesize: 268KB
    Format: • PDFbitmap
    Credit*: Circlip, RFJ
    Downloads: 223

Billy Bunter (oz15087) by Colin Monk 2000 - pic 003.jpg
Billy Bunter (oz15087) by Colin Monk 2000 - pic 004.jpg

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