Velivole Canard (oz802)

About this Plan

Velivole Canard. Rubber powered pusher sport model.

Quote: "THE Canard is due for another lease of life. Time and again the early pioneers stumbled upon designs only to give them up in disgust when their scant aerodynamic knowledge was insufficient to appreciate them. Thus with the Canard, or 'tail-first' type. Santos Dumont ground-hopped such a design in 1907, Heinrich Focke was an early enthusiast, as were Dr. Rumpler, Alberti and Voisin. Only Focke returned to it in modern times with his Focke-Wulf 'Ente' developed between 1927-31. Now designers are looking once again at the neglected Canard in their search for the perfect formula; already the Miles Libellula and the Curtis Ascender have made their appearance, while others are still at the drawing-board stage.

Whatever its future in full-size aviation, it appears, on analysis, to have a great deal to recommend it from a modeller's standpoint. For the benefit of those, who, in the past, have been content to dismiss it as 'just one of those weird types', the Canard layout has a small elevator in front and the mainplane at the rear. The elevator is at a greater degree of incidence than the mainplane and must consequently stall first. The machine then settles by the nose until the front wing regains its lift. In a badly trimmed model this produces a curious pitching movement, but this is the sole result of bad trimming: it will not develop into a power dive.

The elevator employs a lifting section and takes a full part in bearing its share of the lift. Lift being propor-tional to angle of attack, it carries, in fact, more than its share, as it is set at a higher angle of incidence than the mainplane. Such a force set-up is impossible in a normal design where the tail is set at a lesser angle than the main plane..."

Update 22/01/2013: Replaced this plan with a clearer copy thanks to rogerc41.

Quote: "Cleaned re-scan of the interesting canard pusher Velivole from Aeromodeller June 1946 (originally uploaded by Aeromeddeler in post #2373), together with the article and the Aeromodeller front cover (from Colin Usher's site)".

Note photos of compete Velivole model by Cliff Kershaw [pics 006,007] are from RCM&E, March 1991.

Supplementary file notes

Article pages, text and pics.

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