Flymaster NAV, User Manual

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During a competition task flight using the optimal tangent navigation saves a substantial amount
of time. The smaller arrow closer to the centre of the navigation wheel points to the centre of next
waypoint cylinder, and the arrow furthest away from the centre of the navigation wheel points to
the optimised edge of the waypoint after the next one. The combination of all three arrows provides
a spatial location of the waypoint.
Figure 3.6: Route Optimisation
The example in Figure 3.6 shows a hypothetical task. A pilot navigating to the centre of the
waypoint (following the small arrow) will probably be flying the blue course, whilst a pilot using
the optimised route (red course) will fly the substantially shorter red route. The direction to the
waypoint after the next one is shown by a small arrow on the outer part of the navigation wheel.
In the example in Figure
3.6 this arrow is pointing along the green line, which shows the direction
to WP2, even though WP1 has not been reached.
Small course corrections are sometimes required and these are shown on the NAV by a fine
adjustment indicator in the form of a third small arrow.
An arrow to the left means the pilot should turn slightly to the left, and inversely an arrow to
the right indicates a small adjustment to the right is needed. In the example of Figure 3.6 a very
small arrow pointing to right indicates that the pilot should turn right slightly.
When the course is perfect, i.e. less than 1 º off, the NAV indicates this by showing a large arrow
forward (Figure 3.7 ).
Figure 3.7: Perfect Heading
Note that, a start is automatically validated when a pilot correctly completes the start. Until
the start is valid the NAV will not advance to the next point in the route. Another important
aspect of the start is that the NAV does not point to the start cylinder but rather to the next turn
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