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BiGolden2

 
BiGolden2 
 

 
BiGolden2 

After a worldwide success of the BiGolden (850 produced wings) Gradient comes up with the new tandem glider BiGolden2. The wing's manoeuvrability could be improved by using a perfectionized computer program while creating the prototypes. The break pressure of the BiGolden2 is lower and more precise than in Gradient's predecessor model, what makes thermaling more comfortable. Further, the long time proven Gradient construction method achieving a low wing weight makes the new BiGolden2 easy to take off in any conditions. According to Gradient director, and test pilot Ondrej Dupal, the BiGolden2 should primary hit the target of professional tandem pilots who appreciate agile flight characteristics. The new BiGolden2 is available in three standard colour combinations and comes up in a new visual design.

 

BiGolden2
38
42
Flat Area [m2]
38.47
41.31
Projected area [m2]
32.91
35.34
Span [m]
14.32
14.84
Projected span [m]
11.62
12.04
Aspect ratio -
5.33
5.33
Projected aspect ratio -
4.10
4.10
Max. chord [m]
3.34
3.46
Min. chord [m]
0.66
0.69
Number of cells -
54
54
Line consumption [m]
465.4
482.3
Weight of the glider [kg]
7.4
7.9
Take-off weight range [kg]
115 - 180
140 - 220
Certification -
EN B
EN B, LFT 1-2
Basic speed * km/h
40-42
40-42
Max. speed * km/h
50+
50+
Min. sink rate * m/s
1.1
1.1
Gliding ratio * -
8.5+
8.5+
*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. 

 
 
Standard color Combination

Blue
 Gold
 Sangria

 

Homologation: / BiGolden 38 / BiGolden 42 /

Line Concept:  all sizes (download in format PDF)

User Manual: (download in format PDF)


 

Specification of materials Canopy
Upper Sail - leading edge ......... Porcher Marine 9092 New SKYTEX, E85A - Evolution, 45 g/m2
Upper Sail - rear part ........ Porcher Marine 9017 New SKYTEX, E38A - Classic, 40 g/m2
Bottom Sail ........ Porcher Marine 9017 New SKYTEX, E38A - Classic, 40 g/m2
Ribs ................... Porcher Marine 9092 New SKYTEX, E29A-Hard Finish, 45 g/m2
Reinforcements ... Adhesive laminated PES, 80 g/m2, Dacron 160 g/m2 , Scrimm 180 g/m2
Thread ........... Baner PES
Suspension lines
Liros DC 120 / 0.8 mm - strength 120 daN
Edelrid Dyneema 7850-100 -1.1 - strength min. 100 daN
Edelrid Dyneema 7850-130 -1.3 - strength min. 130 daN
Edelrid Dyneema 7850-160 -1.4 - strength min. 160 daN
Edelrid Dyneema 7850-200 -1.6 - strength min. 200 daN
Edelrid Aramid 6843-160 -1.5 - strength min. 160 daN
Edelrid Aramid 6843-200 -1.8 - strength min. 200daN
Edelrid Aramid 6843-240 -2.1 - strength min. 240 daN
Edelrid Aramid 6843-340 -2.4 - strength min. 340 daN
Risers
Risers ................... PAD 1,6/25 mm- strength 1300 daN
Pulleys .................. Riley
Karabiners ........... Maillon Rapide, Inox 4.0 mm