ZupAir ZULU, Руководство пользователя

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8
Soaring
Keeping the Zulu aloft only by the power of natural rising air
can be very rewarding. Slope lift is the easiest form of
soaring, but not everyone is fortunate enough to live near a
ridge with consistent wind. The Zulu can also use thermals,
or columns of warm rising air to gain altitude.
Deep Stall
The Zulu needs around 20° (just past stall) of upward deflection to enter the
deep-stall mode (very nice for top-landings). Higher descent rates can be
reached with more deflection. If you encounter wing-rock during deep stall,
higher deflections may help.
High Control Deflection Aerobatics
Setting the elevons up for higher deflections opens up some
additional aerobatic maneuvers: rapid deep-stall (+45° to +90°),
tumble (+90°to +100°), and tail-slide (+100° to +120°). While
these maneuvers can be spectacular to perform, there are some
drawbacks:
-
reduced control resolution during regular flying
- extra force on the servos
-
potential for servo-slop to initiate flutter at high speeds
-
non-optimal ratio between drooperon and elevon travel OR a spring
mechanism between the drooperon horn and servo OR two additional
servos
Tips for a quick +90° setup using ES09MD servos:
1. With a programmable radio, maximize the servo travel limits (± 786
u s
)
2. Adjust the sub-trim by about 30% on both servos, so that the neutral
position gives the elevons more up and less down travel.
3. Position the servo arm so that it is angled forward, and adjust the linkages
so the control surfaces are neutral at this position.
4. Put the elevon pushrod in the outermost servo-arm hole, and the
drooperon a hole or two below.
5. Power up your servos and transmitter, and pull the stick back. Fine-tune
the sub-trim and pushrods to get the full 90°+ deflection. (85° is not
enough)