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Telemetry : speed – Futaba 14SG 2.4GHz User Manual

Page 102

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101

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TELEMETRY : SPEED

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The speed screen displays and sets the speed data

from an SBS-01G (GPS sensor) sold separately.

The speed of the aircraft during flight can be

displayed.

After flight, the maximum speed during flight

can be viewed. Because this speed is based on
position data from a GPS satellite, the ground speed

is displayed instead of air speed. Consequently,
with a head wind, the displayed speed decreases
and with a tail wind, the displayed speed increases.

*It cannot be used in FASST mode and S-FHSS mode.

*Only receiver voltage and EXT voltage can be used in

FASSTest12CH mode.

*The FASSTest14CH mode can use all the telemetry functions.

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*Alarm when the speed has increased.

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*Alarm when the speed has decreased.

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Alert setting when speed increases

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*When the RTN button is touched for one second, the rate is reset

to the initial value.

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Alert setting when speed decreases

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*When the RTN button is touched for one second, the rate is reset

to the initial value.

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*Speed alarm precaution

Since the GPS speed sensor displays the ground speed, it cannot
be used as a stall alarm. For example, an aircraft that stalls
at 50km/h will stall if the tailwind is 5km/h or greater even
through 55km/h is displayed by ground speed. In addition,
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an over-speed alarm, when the headwind reaches 30km/h the
airplane will disintegrate in midair due to over speeding even at
a ground speed of 370km/h.

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