Loadstar 40 (oz16515)

About this Plan

Loadstar 40. Radio control sport model. Wingspan 72-3/4 in, wing area 760 sq in. For .25 to .50 engines.

Quote: "The Bridi Loadstar 40 has a flat bottom airfoil. Easy construction of the wing and fuselage. Capable of multi-purpose use as a trainer or sport flyer. Great airplane for both general flying and beginners. The Loadstar 40 slows down for gentle landings. Dural landing gear, motor mount and hardware included."

Direct submission to Outerzone.

Quote: "Steve & Mary- Here’s the plan for Joe Bridi’s Loadstar 40, scanned by William Smith and edited by DPlumpe.

Trainer designs are typically high-wing cabin types for stability but vary in size and construction. All else being equal, the larger and lighter the plane the better and easier it’ll be to fly – important for a beginner. A heavily-designed model will often be stronger and better able to withstand an 'oops' but the faster it’ll have to fly, thus be more difficult to control. The lighter the wing loading, the slower it’ll fly and easier it'll be to control. I tend to feel a heavier design is made to withstand a crash, while a lighter design is made to fly.

At 73 inch span the Loadstar 40 is a good-size plane, certainly larger than the presently popular foamy trainers. Its construction is a compromise between an all stick design like Sig's Seniorita and the more common all sheet balsa models. Though I’d prefer to see a built-up tail vs. sheet balsa, the sheet balsa version is certainly easier to build – also important for a beginner."

Update 18/1/2026: Added kit instructions (16 pages, complete inc parts list), thanks to DPlumpe.

Supplementary file notes

Instructions.

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