Martin B-26 (oz2146)

About this Plan

Martin B-26 Marauder. Twin engined scale bomber for control line. Zombie artwork on the nose.

Quote: "With the small total wing area, wing loading is quite high. Despite this, with two 29 displacement engines running at full rpm's, this 'Zombie' really moves. To improve stability the bellcrank is shown mounted lower on the plans; however, it could be in the wing as on the original.

Although not intended for novice builders, the construction of the model is not hard when following the plans and assembling the plane as recommended. A little patience in its construction and finish will repay the builder with a fine-appearing, good-flying, twin-engine model that has realism. Easiest way to mount the engines is as shown on the photos; follow the plans if you want best scale appearance.

Construction begins with the fuselage. Cut out all the fuselage formers of 1/8 sheet except F2 which is 3/16 plywood. Make the formers in halves vertically except F2 which is cut to its full outline. Lay down the 1/8 x 1/4 in top and bottom longerons over the fuselage side plan. Cement all formers in position except F2. Add 1/4 in square side longeron and several planking strips to aid stiffness. Take up this assembly when thoroughly dry and add other top and bottom longerons. Add other halves of all formers and side longeron.

Bend nose gear wire to shape and fix to plywood former with 'eye' or 'j' bolts. Former F2 is then slid into position between longerons and cemented. It will be necessary to cut lower longeron to clear gear leg. Doublers should be added around the cut. Back up F2 with 1/4 in sheet gusset as shown on plans. Plank fuselage with 1/8 x 1/4 or 1/8 x 3/8 strips. Add bellcrank mount, bellcrank and pushrod before planking is completed. Nose, cockpit and tail cone blocks can be added and carved to shape.

The wing is assembled after the 1/8 sheet balsa ribs have been cut to shape. The spars should be of firm, hard balsa wood. Build up over the plan views, blocking up leading and trailing edge so the chord line is level. Omit rib W1 until later. Plan has right wing panel construction shown. Left panel has scale details with construction omitted for clarity. Connect short lines at leading and trailing edges with pencil lines to get rib positions. Spars and edge ends are shown dotted at rbot and tip. These should also be connected with pencil lines..."

Supplementary file notes

Planfile includes build article text.

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