5.3.7.14 Short Throw Travel / Short Throw Shape
Parameter Possible Values Default Rev HHP Lite Std Adv
Short Throw Travel 100 – 200 % 100 % C -
Short Throw Shape 100 – 200 % 200 % C -
Normally a DX joystick will output a 100% Joystick Deflection signal (see 5.3.1) only
when the joystick is pushed as far as it can mechanically go (for example when it hits
the restrictor plate).
Short Throw Travel increases the joystick gain (output/input ratio) so that less
movement of the joystick is required to generate full output. Increasing the joystick
gain can be useful in two situations:
• A small gain increase (up to 105% or 110%) makes sure that a 100% Deflection
signal is possible in situations where a joystick has not been or can not be
calibrated correctly
• A large gain increase (up to 200%) allows users with very little hand movement
full proportional control.
Output
Movement
100%
100%
50%
Short Throw Travel 100%
Short Throw Travel 200%
Warning:
Increasing Short Throw Travel can introduce a safety risk, because the
mechanical resistor plate does not anymore restrict the joystick before
its output reaches 100%. This can cause a situation where the joystick
demands full forward speed
and full turning speed, which can be
dangerous.
Short Throw Travel 100% Short Throw Travel 200%
GBK60348
: Issue 1 – October 2007
70
Joystick is
physically
restricted to
reach this point
100 %
forward
100 %
turning
0
100 %
forward
100 %
reverse
0
100 %
turning
0
Joystick is not
physically
restricted to
reach this point
100 %
reverse
0