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Aviation History
1925
1925 - 0567.PDF
SEPTEMBER 3, 1925 SPAN .. ..26-3 LENGTH... l'8-O" EFFECTIVE WING AREA IO7-6 SQ.Pr. PIERO MAGNlVlTTORIA 1924" SESQUI PLANE 50hP ANZANI 6-A.20 THE PIERO MAGNI " VITTORIA 1924" SESQUIPLANE: General arrangement drawings. planes give, it is claimed, much the same conditions as those obtaining with variable camber systems, thereby facilitating landing in restricted areas. The control of these auxiliary planes, it should be noted, its quite independent of the usual control of the machine, although the two controls may be partially interconnected for special purposes. We under- stand that this system of control, as first devised by Sig. Magni, was the first of its kind, although a machine embodying a similar idea was produced in America after the design of the first Piero Magni machine. Another important feature of the " Vittoria " consists of the improved range of vision its design offers. As will be seen, the main plane being level with the pilot's eyes, the maximum range forward and above is obtained as in the high-wing type monoplane, while the position and small size of the auxiliary planes does not restrict the vision downwards to any considerable extent. A second experimental machine, " Vittoria 1925 "—also for Sig. Magni's private use—is now nearing completion, but it differs from the " 1924 " in details only. There is also a commercial production model of the " "Vittoria " which will be placed on the market in a few weeks. Sig. Magni is also developing new commercial and militarymachines on similar lines, especially as regards deck-landing ships' 'planes, while designs are being prepared of machinesembodying new devices, such as variable camber wings, etc. Now as to some particulars regarding the constructionof " Vittoria 1924." The main plane is entirely of wood construction, consisting of a framework of longerons andribs built up in the form of a box, the covering being of plywood. There are five longerons, of which the first andfifth are auxiliary. As will be seen from one of the accom- panying illustrations the spars run parallel from the fuselageattachment up to the wing-strut attachment. Thence they curve back, converging together at the extreme wing tip. The thin main longerons are divided into one primary(the third) and two secondary (the second and fourth) ; they are built up of two spruce strips separated by atriangulated lattice of battens of the same material, the whole being boxed in by plywood. The ribs are of similarconstruction. The wing section emploved is known as " P.M. 14." The ailerons for lateral balance are mounted on the rear THE PIERO MAGNI "VITTORIA 1924" SESQUIPLANE : Some constructional details. On the left (top) the main starboard wing in skeleton, and below the fuselage frame, which is covered with plywood. On the right will be seen one of the auxiliary wings (top) and the tail plane, or elevator. 567
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