Wetwun (oz8602)

About this Plan

Wetwun. Control line floatplane trainer for 1.5cc engines. Can be built either as monoplane or biplane.

Quote: "Make this amphibious control line trainer designed by Jim and Dave Leddy.

Wetwun is one of a series of models designed to encourage younger modellers to try control line flying, and enjoy the results.

The original idea came from 'Brother Dave'. What we need is a biplane with floats, said the ideas man, who then thought he was going back to his vintage control-line models. He was wrong! Wetwun finally emerged as a one or two wing float plane, with either open or closed cockpit powered by a 1.5 cc diesel. The prototypes used the PAW 1.49 and an old AM 15.

Wing: Build one or two, the choice is yours. Cut the spar 1/2 in x 1/8 in and notch 1/4 in deep to accept the 1/16 ribs. The spar, lower trailing edge and tips are pinned directly onto the plan. Locate and glue all the ribs and when dry, glue in leading edge and upper trailing edge. Epoxy in the ply bellcrank mount on the lower wing only and cover centre-section with 1/4 in sheet balsa. When dry, remove from the board and sand to shape. The only difference between the two wings is that the lower wing has the ply plate, the upper has two centre ribs.

Rudder Fin and Tailplane: Are all cut from 3/16 balsa sheet. The two elevators are joined with 14 swg wire and commercial Radio Control hinges were used on the prototypes. Sand to shape.

Fuselage: Cut the lower 1/4 in balsa sheet and glue onto this the engine bearers and formers F1 and F2 with the fuel tank in between. With the upper 1/4in. sheet glued on top of this box, you have the unit around which the fuselage is built. Now add the fuselage sides, doublers and formers F3 and F4 and join together at the rear. The tailplane and rear top decking is glued on, together with the top decking and side panels. Whilst this is drying, make up the float strut units and secure to the ply plates with glue and thread. These strut units are glued inside the fuselage to formers F2 and F3. The lower wing bellcrank and push-rod can now be fitted..."

Scan from DBHL, cleanup by theshadow.

ref DBHL-7289.

Direct submission to Outerzone.

Supplementary file notes

Article pages, thanks to Algy2.

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