TMQ AP9 Autopilot (V6.0 - 965)
Page 14 of 51
31/1/2017
Rudder Control (Rudder Ratio)
This setting is used to determine the amount of rudder angle applied
for a given angle off course (ie: the amount of rudder the vessel
requires for good steering)
The centre position is suitable for most vessels, but should the
steering be sensitive or slow, adjustment maybe required. In
general, a responsive vessel with a relatively large rudder or very
small keel will require a small rudder setting. A large, slow vessel
may require a high value for the rudder ratio.
This may also be adjusted according to speed - low speeds require more rudder angle for
steering than high speeds.
·
A value of "1" signifies the minimum amount of applied rudder (for sensitive
steering, large rudders or low gearing ratio.)
·
A value of "10" signifies the maximum amount of applied rudder (for vessels
with slow steering, small rudders or high gear ratio).
When the rudder setting is too low, turns will take an excessive amount of time, and the
vessel may "wander".
When the rudder setting is too high, turns will be rapid and the vessel will oversteer.
Autopilot Operation- Remote Control
The following is a brief overview of the capabilities of the AP9 autopilot with remote
control units. Each is described in more detail later in the manual.
Hand remote
The AP9 can be controlled with a hand remote unit. Auto and power steer modes can
be selected. Special remote response mode r-1 must be set in AP9.
Steering Lever/Electric helm
The boat may be steered using a steering lever with the AP9. Special internal remote
modes r-3, r-4, r-5 or r-6 must be set in AP9 depending on remote control connection
(see pages 58 and 59)
