Jay-Pee (oz16427)

About this Plan

Jay-Pee. Control line line sport model. Wingspan 30-1/2 in, for 2.5 cc engines.

Note on scaling: As printed (ie as supplied by Aeromodeller) this plan has a wingspan of 34 in. This does not match with the article text that says: "30 in span" or indeed with the title block on the plan itself that says: "30-1/2 in span". Thanks to Ilgk48 for help with this.

Quote: "INTENDED TO resemble the Jet Provost Trainer, the original version of this model was built by Jack Muncaster, perhaps better known as the pipe-smoking pit man half of the Muncaster/Langworth team race duo, and was designed as a stunt/sport/display model for the ubiquitous Oliver Tiger.

Not having the time available to draw up the plans, etc., Jack arranged with John McAlroy to 'do the necessary', at the same time suggesting that the lads from the Rothwell Secondary School, where John teaches, might like to have a go at building the Jay Pee in the same way in which they adapted the Rainbow (oz10426) glider, John's own design published in the July 1972 issue.

Accordingly, five or six were built and all proved delightful to fly and were easily built. The semi-scale shape also allowed for several different colour schemes to be tried, ranging from actual Provost white and red, to British/German/Finnish-type colours for simulated 'dogfights' in display work.

The construction is simple enough for a beginner to tackle and since Jack based the design on stock sizes, acquiring the materials should prove no bother.

Begin with the wing, which is both strong and light. First cut out the 3/32 ribs, either individually or by the sandwich method, using two 1/16 ply templates. Remember to leave the middle three ribs (R1) 1/16 in smaller to allow for the centre-section sheeting. Cut holes for the lead-outs in the inboard ribs, taking special notice of the slightly unusual shape and position of the bellcrank assembly.

The two trailing edge pieces are then cut from 1/8 sheet and laid aside while you sand the 1/2 x 1/2 in leading edge to shape (a commercially shaped LE can be used, but be sure that the rear is squared off at 90 degrees to the nose of the strip.) Now you are ready to assemble the wing..."

Direct submission to Outerzone.

Supplementary file notes

Article.

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