- Thread starter Alex Aero UA
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How many degrees of geometric twist do you have on it ?We do not have small taper ratio, but the fall characteristics do not deteriorate due to the application of aerodynamic andgeometric wing twist, wing strake and slotted ailerons. The plane will be securely parachuted without the tendency to fall on the wing.

With regard to wing area and wing load, I will give some examples for comparison. VP12 has a wing area of 9.37 m², a maximum take-off weight of 482kg, a wing load of 51.44 kg/m².

H36 DIMONA has a wing area of -15.24 m², maximum take-off weight of 770kg, load per wing - 50.52 kg/m².

The advanced version of the H36 aircraft DA20 KATANA has a wing area of -11.61 m², maximum take-off weight of 800kg, load on the wing - 68.9 kg/m².

Therefore, such area and load is chosen by us not by accident, it is necessary to get high speed in the motor glider mode at transitions.

To illustrate the above, I can give you an example of a modern glider that uses water ballast of up to 200 kg of water to increase wing load and speed accordingly. Because whoever goes through first wins.

We also took care to reduce the drop speed at a small wing area (9.37 m² ), due to the application of a high degree of wing mechanization throughout the wing, as well as the use of a high-bearing wing profile. This allows to process the ascending flows at low speeds. And by removing mechanization, you get a significantly higher cruising speed.

geometric twist -1 degree + aerodynamic twistHow many degrees of geometric twist do you have on it ?

Regarding the wing profile, unfortunately, I cannot give you the name of the profile. Because the set of wing profiles was developed by our company. Based on the HQ 3.5 / 14 profile. But we have subjected it to a deep modernization. The thickness of the profile and the trailing edge of the profile (trimming), as well as the rear part of the profile, where the aileron and flap are located, have been changed.What airfoil section are using for the wing? Thanks.

Doug

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