The name of that plane, without a doubt, chose by analogy with the family of insects of the same name, with two pairs of wings of low aspect ratio.
This airplane comes in the form of a biplane to very staggered wings, wing before being placed under the fuselage and the rear, with a wingspan corresponding to 2/3 of the front wing, on the fuselage. The gap between plans is 1/3 of the chord. The airfoil of the front wing is classic with a positive 3 ° angle of attack while the rear wing is symmetrical and stalled at 0°.
The two wings are equipped with ailerons, differential acting in depth and jointly transversely.
Both fins and rudders are placed at the ends of the rear wing in order to be fully effective at large angles of attack. Their operation deserves to be explained. Each elevator is connected to a pedal and the coming back to the elevator position is entrusted to a reminder sandow, whose action is in addition to the effect of the speed. The simultaneous operation of the two pedals causes the aerodynamic braking action. Great, right?
Advantage of the formula: spin impossible, only fins control, low approach speed control "responding in all points to the requirements as well as of student and confirmed driver", as shown in an advertising brochure.
It made its first flight in April 1935 and took part in the rally of the wines of Tourraine in July of the same year and at “ twelve hours” of Angers the following year.
Unfortunately, the "Hemiptere" did not find the desired success with users provided, somewhat bewildered by this unusual formula that they considered unorthodox.
to learn more about the assembly of this model and see more photos, visit my blog at the address below (in french, sorry)
http://ift.tt/2e0lLvb
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