Venture (oz7343)

About this Plan

Venture. Free flight sport biplane model.

Quote: "The Sporty (oz338) and Coquette (oz33) have already proved that there is something about a biplane that catches the admiration of all aeromodellers. Now we present another bipe that is as easy on the eye as it is to build and fly. Larger than its predecessors, Venture is well suited to the wide range of 2 cc motors, though, judging by the assortment of power units used in versions of 'Sporty' (in spite of its original stipulated 1 cc) there is little doubt that Ventures will be flying with larger motors than those for which it was designed. We would not advise anything greater than 3.5 cc or you will find yourself with a rocket on two wings. For realistic flight, 2-6 cc should be a maximum, and 2 cc ideal, though the prototype completed hundreds of trouble-free flights with the Mills 1-3 cc.

Note, too, that the pendulum is employed in this model, it is a sure safeguard against unwanted spiral dives and we would not advise its omission in any circumstance.

CONSTRUCTION: Start the Fuselage by building the two conventional sides over the plan. Cut out the wing struts from in. ply and cement securely to the formers. Assemble the fuselage sides together, fitting all formers, engine bearers, and the nose-block. Construct the wing box, noting that it must be cranked in the centre to allow for the dihedral of the lower wings. Cement it lightly in place. Make up the pendulum rudder control and fit into the fuselage, leaving sufficient surplus on the control lines for fitting to the rudder. Form the cockpit from block, fit the tail wheel assembly, add the wing runners and undercarriage.

Now construct the Lower Wings and fit them temporarily in the fuselage box. Check for the 1-1/2 in dihedral at the tips and cement the box securely. Add sheet around the fuselage nose, and construct the cowling with two layers of 1/16 sheet cemented at cross grains. Cut out a panel for engine access and fit the linen hinge. Add the motor (5° right side thrust was used on the prototype).

Build the Upper Wings in the conventional manner. Bind strut hooks securely in line with ribs. Make the Wing Struts by forming paper tubes around 3/16 in dowel. Sandwich between balsa sheet, before sanding to shape.

The Tailplane and Fin are built in the normal way, cement the fin to the tailplane and temporarily fix to the fuselage to line up the locating dowel. Make up small hooks, clip to rudder bar hooks and connect the control lines. Note that the lines should not be tight, but equally tensioned. Allow rudder movement of 3/4 in to the right and 1/8 - 1/4 in to the left. Cover all surfaces with Modelspan, and give two coats of dope with a final coat of the desired colour. "

Supplementary file notes

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