Notwun (oz16481)

About this Plan

Notwun. Control line sport model. Wingspan 29 in.

Quote: "Fancy a control liner with a dash of the past about it? Build Jym and Dave Leddy's latest for 1.5cc engines. Vintage? No - it's Notwun!

GUILDFORD MODEL FLYING GROUP is probably like many other aeromodelling clubs in the country in that a high proportion of its members are devotees of radio control. Control line modelling had all but died out in our group; but recently there has been a small but significant revival. The Group has been lucky to have had an influx of younger members, although none as yet with any C/L leanings.

It was one Sunday morning that we took our latest vintage control line model to the field. With pride we placed the model (a Barnstormer by Ted Buxton, dating from 1948) amongst the predominantly plastic-and-foam R/C jobs. 'Doesn't that look old fashioned, mister', was the remark we most remember. The conversation down at the local hostelry that night centred on talk of vintage looks and it was from the doodles that Notwun emerged.

Wing: The shaped trailing edge, cut from 3/16 sheet, and the 1/8 hard balsa spar are pinned down onto the plan. Onto these are glued the 1/8in ribs with rib R1 tilted very slightly inwards. Add the 3/16 sq balsa leading edge and when dry glue on the 1/4 in balsa tip and the 1/8 gussets. Remove this wing panel from the plan and pin the trailing edge and main spar for the second half on the plan. The first wing half can now be butt-joined to these but remember to pack the tip by one inch. The second half can now be completed with the ribs, leading edge, tips and gussets. When the assembly is completely dry remove from the plan and sand to shape. The 1/32 centre section covering can now be added.

Fuselage: The fuselage is built on a 3/16 hard balsa crutch. Make this on the plan and allow to dry thoroughly. Remove from the plan and add all the formers except F4 Upper, taking care to ensure they are square. We found this easier to do if the crutch was placed on two wooden blocks at the appropriate height above the building board. This depends on whether or not an undercarriage is attached to former F3. Add the 1/8 sq balsa longerons.

Securely glue in the bellcrank mounting and the 3/8 sq bearers. The bottom of the fuselage can now be planked with 1/16 x 1/4 in strips and the soft block added between F1 and F2. It may be easier to drill the engine mounting holes before the block is finally glued in place.

Tail unit and final assembly: The tailplane, fin and rudder are all cut from 1/8 balsa sheet and glued to the top of the fuselage crutch.

Now add the bellcrank, push rod, lead outs and elevator horn and ensure that all is working smoothly. After the fuel tank has been positioned glue the wing into place (taking care here) followed by former F4 Upper. The upper 1/16 x 1/4 in balsa strips should now be added to the top, and soft balsa block glued to the tail area.

Finishing: After careful shaping and overall sanding the model may be finished as required. The prototype was finished with heavyweight tissue on the wings and lightweight tissue on all the sheet surfaces. The wings were clear doped and the whole model was given several coats of sanding sealer before being completed with enamel paints and fuel proofer. A commercial canopy adds the final touch.

Flying Balance on the front leadout and fly on 30 to 35 ft lines. The prototype has been flown by several different pilots from beginners to experts, including one R/C enthusiast who had never flown control line before. He enjoyed himself! We hope you do, too."

Direct submission to Outerzone.

Quote: "Hallo Steve, good afternoon. “Notwun” is a 28” Control Line Model designed by Dave and Jym Leddy presented in Aeromodeller June 1986. The plan is printed on one side of a free folded “pull out” banner of four sheet. The other side of the banner presents “Pomilio” by Vic Smeed available at oz2357. Best regards,"

Supplementary file notes

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