M-12 (oz14094)

About this Plan

M-12. Simple rubber stick model. Wingspan 800 mm.

Direct submission to Outerzone.

Instructions, thanks to Pit.

Quote (google-translated from the Italian): "Instructions for the construction and assembly of the flying model M.12

The M.12 stick model is the simplest type of flying model with an elastic motor both in terms of construction and flight tests, and is particularly suitable for those starting their own aeromodelling activity. Build the model by scrupulously adhering to the measurements and shapes given by the drawing, thus not varying the construction details and following the rules for the construction of the flying models described in the Vademecum dell'Aeromodellista.

Wing: The wing, single long member, with a rectangular plan with rounded ends, is made up of ten identical ribs, the leading edge in rod and the trailing edge in triangular strip. The wing structure is completed by the ailerons (No. 5) and the union elements of the wings: diaphragm (No. 6) and cork fillings (No. 7 and 8). Note that all ribs have identical slots for the spar, with the exception of the two ribs central A and B which, in addition to the said housings, have a notch which allows the interlocking with the corresponding notch of the diaphragm, thus facilitating the union of the halves and determining the desired dihedral.

After joining the halves, two appropriately shaped cork blocks must be interposed between the ribs A and B, respectively at the leading edge and the trailing edge. plexus favor the connection and perfect coverage of the central area of the wing (see the details illustrated on the drawing).

The fastening elements of the wing with the fuselage are made up of three metal wire hooks: the first two are integral with the central diaphragm, while the third is fixed to the n.9 handkerchief which covers the cork filling n.8.

The fixing of the wing to the fuselage takes place by means of elastic rings that fasten the fuselage itself with the aforementioned hooks.

The wing is fixed on the lower surface of the trailing edge by means of two aluminum rivets.

The wing tip is formed by the extension of the leading edge which curves and is glued to the trailing edge; a thread ligature facilitates the union of these two elements and makes the connection more solid.

Note that, beyond the last rib, the rod of the upper side member continues straight to the terminal curve, while the lower one bends to assume the shape visible on the drawing. The wing tip is completed with the crosspiece C (see particular wing tip with aileron).

Fuselage: The fuselage consists of a wooden ruler on which are rigidly fixed: the propeller support, the carriage, the skid and the tail fins; while the wing, as we have seen, is elastically connected to the fuselage. On the rear end of the fuselage ruler the housings (D - E) are provided for the application of the tail fins. The first is a 3mm diameter hole, while the other is a joint that must be performed with the fretsaw and which has the dimensions of 3 x 16 mm as clearly visible in the drawing..."

Supplementary file notes

Instructions, in Italian.

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