The airfoils

That's how an airfoil was supposed to look like in 1911 (see also The Gallery). Today, there are more of them, sometimes even better ones - but alas not too many in this very interesting thickness range of 8 % and below. So we had to roll our own.

Airfoil	Thickness	Camber	Geometry	Polars	Remarks
HD45 Coordinates	7.5 %	1.4 %			For fast models (F5B, F5D, slope).
HD46 Coordinates	7.0 %	1.4 %			For fast models (F5B, F5D, slope).
HD47 Coordinates	6.5 %	1.4 %			For fast models (z.B. F5B, F5D, slope). Ariane V10 wing airfoil.
HD48 Coordinates	8.0 %	2.5 %			Optimized for F3B. The "-2FLAP.73" polar is for a 27 % flap, deflected 2 degrees upwards (speed task configuration).
HD48A Coordinates	8.5 %	2.5 %			Optimized for F3B. The "-2FLAP.73" polar is for a 27 % flap, deflected 2 degrees upwards (speed task configuration).
HD48B Coordinates	9.0 %	2.3 %			Optimized for F3B. The "-2FLAP.73" polar is for a 27 % flap, deflected 2 degrees upwards (speed task configuration).
HD50 Coordinates	8.0 %	1.3 %			Special purpose F5B airfoil, designed for the Ariane V5 and Ariane V6. Low minimum drag and high maximum lift, but higher drag than the new HD4x series in the middle lift range.
HD53 Coordinates	7.5 %	1.2 %			Special purpose F5B airfoil, designed for the Ariane V7. Low minimum drag and high maximum lift, but higher drag than the new HD4x series in the middle lift range.
HD54 Coordinates	7.0 %	1.4 %			Special purpose S8E rocket glider airfoil, designed for the Ariane RAK2.
HD800 Coordinates	8.0 %	0.0 %			General purpose tail airfoil. Lower drag and a more linear lift/alfa curve (see NACA0008 comparison polars).
HD801 Coordinates	7.0 %	0.0 %			General purpose tail airfoil, used on almost every Ariane plane. Lower drag and a more linear lift/alfa curve (see NACA0007 comparison polars).

These airfoils are Copyright © 1994-1997 Hannes Delago. Feel free to use them for noncommercial purposes. No commercial use or publication (e.g. on other www or ftp sites, print media or airfoil collections) without my written consent.