S-1 Swift

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S-1 Swift is a single seat mid-wing glider with retractable undercarriage. It was manufactured by glider manufacturer MDM / Edward Margañski. It is the single-seat counterpart for the MDM-1 Fox. It is often used for aerobatics.

[edit] Technical data

Wing Span 12.7 m
Wing Area 11.8 $m 2$
Wing Aspect Ratio 14.3
Wing Airfoil: NACA 641412
Tail area: 1.65 $m 2$
Tail airfoil: NACA 631012-63006
Vertical Empennage Area: 0.9 $m 2$
Vertical Empennage Airfoil: NACA 632015-63012
Weight (empty): 280 kg
Weight (max in flight): 390 kg
Length 6.91 m
Manouver Speed Va: 228 km/h
Diving Speed Vd: 320 km/h
Max Lift/Drag Ratio: 30.0 107 km/h
Min Descent Speed: 0.9 m/s at 104 km/h
Minimum Speed: 73 km/h