Gradient Logo
CZ   EN
Login
GRADIENT s.r.o.
Plzenska 130/221
150 00 Praha 5 - Motol
Czech Republic
Tel/Fax: +420 257 216 319
gradient@gradient.cx
Contact
Montana 2011
Technical Data
size
22 24 26 28 30
Flat area m2 21.28 23.18 25.54 28.12 30.41
Projected area m2 18.60 20.26 22.32 24.58 26.58
Span m 10.51 10.97 11.51 12.08 12.56
Projected span m 8.70 9.08 9.53 10.01 10.41
Aspect ratio
5.2 5.2 5.2 5.2 5.2
Projected aspect ratio
4.08 4.08 4.08 4.08 4.08
Max. chord m 2.55 2.66 2.79 2.93 3.04
Min. chord m 0.52 0.54 0.57 0.60 0.63
Number of cells
40 40 40 40 40
Line consumption m 277.8 289.9 304.3 319.3 332.1
Weight of the glider kg 3.5 3.8 4.1 4.5 4.9
Min. take-off weight kg 58 65 75 90 105
Max. take-off weight kg 70 80 95 110 120
Basic speed* km/h 37 37 37 37 37
Max. speed* km/h 48+ 48+ 48+ 48+ 48+
Min. sink rate* m/s 1.0 1.0 1.0 1.0 1.0
Gliding ratio*
8.5 8.5 8.5 8.5 8.5
Certification EN / LTF
– B/1–2 B/1–2 B/1–2 –

* These data are valid at the mid-point of weight range. 

Note: performance data are dependant upon the wing loading, type of harness and position of the pilot.