Swing Powerplay Scorpio, Руководство пользователя, Страница: 25 / 52

Setting up the Scorpio and test-flying Section 4 25
Brake pressure increases in this speed
range. Steering with weight-shifting and the
wing tip brakes is much more effective at
high speeds than using the main brakes.
Two-tier speed system
The Scorpio has specifically designed risers
which allow pilots to use a variable transfer
speed system to adjust the speed bar
extension range and pressure to best suit
their own leg length and position.
It is important that the speed system is
correctly installed and adjusted to ensure
that it can be used smoothly during flight.
Before first launch, therefore, the length
should be adjusted according to the
individual pilot and the line guide should be
checked.
Special Brummel-hooks are used for the
connection between speed bar and riser. It
is wise to adjust the line length so that the
pilot’s legs are fully stretched when flying at
maximum acceleration (the two riser pulleys
together). If this is not done, fatigue can be
caused if used this way over a long period
of time. When you have applied the speed
system fully, you should still be able to take
up a comfortable seating position.
After the speed bar has been adjusted
according to the length of the pilot’s legs or
the harness, then the two-stage speed
system is adjusted. This system has two
ball-bearing pulleys which reduce the
acceleration pressure, thereby allowing
comfortable acceleration even when the
pilot’s legs are bent. A stop ball then blocks
the lower pulley, reducing the acceleration
distance, and effectively converting every
centimetre into speed.
The position of the stop ball can be varied.
This allows pilots to alter the speed bar
according to their own preferences, and to
adjust the speed bar extension range and
pressure ergonomically according to leg
length, the harness and the speed bar used.
Fig. 7: Stop ball on the riser’s speed bar line
The two-stage speed system can be
adjusted using a stop ball, which is attached
to the speed system cord by a simple knot.
The speed bar distance is increased if the
stop ball is pushed upwards. If it is pushed
down, then the lower pulley is locked earlier,
which reduces the speed bar distance and
increases the pressure.