Miss San Bernardino (oz12091)

About this Plan

Miss San Bernardino. Control line profile Goodyear racer.

Quote: "Dave Rudd's Nationals winning Goodyear racer. Robust, straightforward design is easy to fly and really competitive with a hot 2.5 - 3.5 cc glow plug engine.

A BRIEF HISTORY of the full-size aircraft: first built in 1949 by Jim Kistler and known as the Kistler Skeeter, in the late '50s known as La Jollita, changed hands in '62 to be flown by Art Scholl and renamed Miss San Bernardino. Although not the fastest with a top speed around 196 mph, it had good placings in various air races, and has always been a good 'novicer' which is the main reason why the design was chosen for a CL Goodyear Racer. Said it was a 'brief history', didn't I!

Construction: Start by joining 3/8 sheet wing piece together, using PVA (do not forget that spruce leading edge), and clamp together by use of elastic bands. Put aside to dry. Cut out the tailplane from 3/16 sheet and sand to shape, leaving the centre section untouched ('square') so that a strong joint can be obtained when joining to the fuselage. Finish off by cutting out the elevators and radius hinge edges before fitting 16 swg elevator horn (use five-minute epoxy). When dry, add nylon tape hinge, first to the tailplane, then to elevators, using balsa cement as the adhesive.

Cut the fuselage out of 1/2 in sheet, and make slots for 3/8 x 1/2 in beech bearers and 1/4 x 1/2 in spruce (do not cut out engine space or wing slot yet). Glue bearers and spruce in place using PVA, and once more clamp with elastic bands.

Back to the wing once again to cut out and groove for 14 swg leadout tubes (I cut out the whole segment then channel grooves in the edges to take the aluminium tubes - makes a neat job). Glue in 1/8 plywood mount for the bellcrank, then join seven-strand Laystrate control line wire leadouts to the bellcrank. Use a 14 swg bicycle spoke for the pushrod (saves soldering at the bellcrank end). Hollow out to take 10 swg aluminium tube and allow fin. of pushrod movement. Finish wing by carving and sanding to shape, but leave final sanding until the complete model is assembled.

Make the fin ply plates for the detachable undercarriage and, with the 10 swg undercarriage leg in position, glue together, clamping in vice. Allow to dry. Then drill holes to take 6BA blind nuts. Using PVA, glue to the fuselage, making sure that the surface is flat before fitting 1/16 ply doubler - use clamps or vice once again. Do not forget to cut out the engine space and wing slot at this stage..."

Miss San Bernardino, Aeromodeller, October 1976.

Direct submission to Outerzone.

Supplementary file notes

Article pages, thanks to RFJ.

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