Delfin II (oz16845)

About this Plan

Delfin II. Radio control sport pusher model. Wingspan 1060 mm.

Quote (google-translated): "DELFIN II. When I sent a small Dolphin Plan to Modelar at the beginning of this year, I had no idea what kind of response it would have. I admit I was surprised by how many modelers make radio models just for fun - without the ambition of winning statuettes, vases, ashtrays and similar more or less useful household items. Many of them wrote to me about the actual size plan. However, the original (artfully drawn with a bed on the back of Christmas paper) has not survived, and the few 1:2 copies (that's how the plan for the Modeler was drawn) that I could have ordered were gone. I only apologized to other interested parties and promised to paint it again.

However, the editors showed understanding, and so I present the Delfin to you again, this time a little larger, so that - with a little good will - the popular GAMA kit (designed for magnetic equipment or some servos) can also fit into it.

The basic version of the Delfin II - for sport flying - again has no landing gear. But for those lucky ones who have a suitable runway at home, I have drawn a landing gear, the front part of which is screwed on and the rear part is tied with rubber (so that it can eventually be used 'among people').

The model construction is very simple and the drawing is probably quite detailed, so I will limit myself to a few notes:

With domestic engines, the Delfin II comes out slightly heavy on the tail. A 'vetronal' head is used for the import. It is therefore worth saving weight on the rear part of the model (from the wing outlet to the rear). On the contrary, in front of the nose we can afford to build"honestly. It definitely makes no sense to make, for example, a balsa head.

The wing ribs are made by the proven 'rasp' interpolation, ie by sanding roughly cut balsa ribs to the entire half wings, clamped between two edge ribs (templates) made of plywood 2 mm thick. We cut out the middle rib separately (it has a different notch for the main spar) and reduce it along the perimeter by the thickness of the balsa covering. We reduce the other two middle ribs in the same way, and for the other four we make a reduction only in the front and rear parts, according to the clip reinforcement of the leading edge and trailing edge, see drawing...."

Note see also plan and article as published in AAM at Dolphin II (oz10867)

Supplementary file notes

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