A thermal plank with low wing loading and a low drag airfoil. It has elevons and an active rudder.
Dimensions and detailsWing Span panel1 =695 mm, Wing Span panel 2 =298 mm, Total = 1986mm (corrected)
The Airfoil - HS 117.
Cord panel 1 =250mm, Cord panel 2 (tip) =150mm
Sweep panel 1 =0, Sweep panel 2 (tip) =30mm
Dihedral panel 1 = 20mm, Dihedral panel 2 = 150mm
Vertical Tail to wing TE distance = 410mm, Vertical Tail cord 100mm, Vertical tail span 230mm
Control surfaces are elevons and rudder
The wing is hotwired out of EPS and covered with fiber-glass (vacuum bagged). There is a CF tow (5mm) running on top and bottom at 30% cord. The two outer panels of 298mm each are detachable for ease of carrying.
The elevon cord is 40 mm and it is across the whole length of the inner panel. It has a kevlar hinge built into a skin, and the underside gap sealed with mylar (BO-PET film)strip
Wing area in inches = 723.4 sq inch
Electronics
2212 980kv motor, 30A esc, 9x5 folding prop, 2200mah 3s bty, 2 x 17 gm servos, 1X 9 gm servo,
AUW = 903gm, 31.85 oz (with a 2200mah 3S bty)
Wing loading = 6.34 oz/sq ft
Wing cubic loading = 2.8
Spiral stability = 4.63, Vv = 0.015, Eda = 10.47
CG @20% SM = 1.54cm, @15% SM = 2.73cm
Happy Flying