Pilot’s manual BiGolden2 Version no. 1, from 27.4.2009
chosen to give the maximum resistance to premature air flow separation and
optimal control forces.
•
The distribution of forces from attachment points on the carrying ribs is
effected by a completely new, special system of adhesive reinforcements,
made from a new fabric developed for Gradient by Porcher Marine.
•
For better distribution of force within the canopy, diagonal segmented rib
technology is used. These segmented ribs are anchored to the attachment
points of lines A, B, C and distribute forces to the innerribs. This enables the
canopy to be divided into as few as thirteen carrying ribs on each side while
still retaining the correct aerofoil shape. Thanks to this, BiGolden2 has few
lines and therefore less drag. The result to the pilot of this reduced drag is a
higher top speed and better glide angle. Diagonal segmented ribs (compared
to non segmented diagonals) also increase compactness and canopy stability
especially in terms of a gliders capacity to recover from an asymmetric
collapse.
•
A new form of “partly triangle cell openings” helps to inflate a canopy in wide
range of angle of attack. Graduated sized cell openings reduce the air
movements and aid pressure distributions within the glider.
•
Five rows of lines (A, B, C, D, E) are used for the upper level of suspension
system. Suspension lines of rows D and E combine into main lines so a
system of four carrying risers can be used. This method helps to reduce drag
and gives maximum simplicity which pilots will appreciate especially during the
pre-flight checks and on launch. BiGolden2 is certified to be flown with a
trimmer on C and D risers with a working range of 8 cm.
•
BiGolden2 is supplied with a well-
tried four-riser speed system with
split A-risers and a trimmers with
working range of 8 cm. Total length
of risers is 30 cm only.
Length of the BiGolden2 risers (mm):
Size 38+42: A
1
+A
2
B C D
Non-accelerated: 300 300 300 300
Accelerated: 300 300 340 380
