50+:1 15m sailplanes

SZD-56-2, Diana 2: Newest 15-meter Sailplane

The technologically advanced SZD-56-2 Diana 2 will
soar on new wings next summer. Bogumil Beres, chief
design engineer of the Diana and owner of Biuro Projektowe
'B' Bogumil Beres, recently announced the design project
of a breakthrough Diana 2, featuring a curved wing
platform with a continuously varying airfoil and high-performance
winglets. The original Diana fuselage will be retained,
but with a lower drag fuselage-wing junction. The wing
loading range will be 6.08 - 11.7 psf. Most remarkably,
the Diana 2 will break the long-standing 15-meter glide
ratio barrier of 50/1 with room to spa forecast
performance includes a max L/D of 52/1. Krzysztof Kubrynski
Ph.D of the Warsaw Institute of Technology has created
the Diana 2 airfoils using his custom 3-D computer
software. Mr. Kubrynski has worked extensively with
Delft University's Prof. Loek Boremans, who has designed
airfoils for many of the latest German competition
sailplanes. The prototype Diana 2 wings will fly next
August. Diana 2's will be delivered in the Spring of
2005.

Ventus 2cM (AR)