Sharp Scooter (oz1378)

 

Sharp Scooter (oz1378) by Keith Laumer 1961 - plan thumbnail

About this Plan

Sharp Scooter. Free flight gas model. Published in Aeromodeller as part 4 of a 'Beginner Course' series of easy to build designs.

Quote: "A slick 29 inch sportster: for .5 to .8 cc engines.

THIS IS THE first power model in our series and we have specially chosen a design and structure that will give a maximum reward of fun for minimum effort. With the thrust of a miniature aero engine to haul your model skyward, you can afford to build heavier stronger structure - which is fortunate, since these power plants require a rigid, vibration-proof mounting.

Surprisingly, added weight detracts nothing from the flying ability of a model (within limits, of course). In fact, a little added wing-loading makes for smoother, more realistic flights and better performance in windy weather.

Sharp Scooter is a sturdy all-balsa (well, almost!) ship with a high-aspect ratio (long and skinny to you) wing, sheet tail surfaces and ultra simple construction which gives yet another exercise in different types in this Beginners Course.

Start by cutting out two fuselage side panels, tracing the pattern from the plan and add reinforcing strips. Now cut out bulkheads 1 to 6. Bend the landing gear from 16 swg piano wire, bore holes in bulkhead 2 and lace the wire to the plywood with heavy linen thread. Coat the lacing with cement, forcing it through the holes to make a. secure job. Bend the tail skid from 18 swg piano wire and attach to bulkhead 6 with a strip of cloth (silk).

Decide on the engine you will use, and bore the hardwood motor bearers to fit. Attach the engine to the bearers, then mark the locations of the notches to receive the bearers on bulkheads 1 and 2. (The locations shown on plan are for inverted mounting of a DC Bantam and upright mounting means that the bearers must be raised by the thickness of the engine lugs in order to retain the correct thrust-line). Join the fuselage sides on bulkhead 2 and 3, then add the remaining bulkheads..."

Update 22/12/2016: added article, thanks to RFJ.

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Sharp Scooter (oz1378) by Keith Laumer 1961 - model pic

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