Setting up the Throttle Jockey with the 8UHP non-super
•Make sure that during all phases of TJ setup that the receiver
battery has sufficient voltage. On the bench, lower than 3.56 volts will
compromise TJ setup.
•Before installing the TJ, set up your heli normally with the
pitch and throttle curves you would use under normal circumstances. (I
suggest a linear pitch curve with the throttle curve set to hold constant
RPM throughout the range). This will ensure that should the sensor fail and
the TJ revert to transmitter throttle curves that the heli still behaves
normally until a landing can be affected. Also ensure that this setup allows
the heli to hover at your desired stick position (1/2 or ² as preferred).
The engine should be run in and correct mixtures set.
•For the above setup, ensure that the throttle linkage is set
up so that throttle ATVâs are equal (low and high stick position) and as
close to 100/100 as possible. This ensures maximum number of steps for the
TJ to use within the throttleâs range to give the most accurate control
•Set the idle in the throttle hold menu as desired.
•For a PCM setup, set throttle fail safe as desired
(recommended position is idle).
•Install the TJ, ensure that all the plugs are installed as per
the printed card on the TJ.
•During installation, rotate the fan and check the red LED on
the TJ. At each pass of the magnet (magnetic sensor) or reflective surface
(optical sensor) the red LED should glow. If it does not, adjust sensor
position to achieve a reliable reading at every rotation.
•In this instance, the TJ will be set up on the Aux channel 7.
This is controlled by the 3-position switch (switch C with a TX in mode 1
configuration -mode 2 TXâs may have the switch on the other side).
•Switch on the TX and move the throttle trim to its lowest
position. Also ensure that the ATVâs on channel 7 are set to 100/100.
•Switch on the RX. Within the first two seconds move switch C
rapidly up and down until the green LED flashes rapidly. This puts the TJ in
•Move the throttle from absolute minimum to absolute maximum a
few times to calibrate the TJ.
•Flip switch C a few times to exit the calibration mode. The
green LED should extinguish.
For ThrottleMax Calibration, exit at High Stick(Yellow LED)for Limiter mode and Low stick for governor mode(Green LED)
•Whilst still on the bench, do the following check:
Set switch C to the center position and move the throttle from idle to full.
The green LED should stay off the whole way. This is because the middle
position of switch C disables the TJ and in this position you are therefore
flying the heli in the ungoverned mode.
2.Move the throttle back to idle and flip switch C to the lower
position. Advance the throttle and at the point where the throttle curve
hits 20% the green LED should come on indicating that the TJ is in governing
mode from that throttle position and up.
3.Repeat step 2 with switch C in the upper position.
4.While the throttle is above 20% (green LED on) flip the
throttlehold switch to on. The green LED should extinguish and the throttle
should return to your throttlehold setting (idle).
5.Return to normal mode and advance the throttle again. Switch off
the TX and the throttle should move to the fail-safe position.
•Move the heli to a safe location for TJ RPM setup.
•Start the heli and adjust throttle trim to achieve a
•Open the 8UHP normal mode and bring up the channel 7 ATV page.
•Move switch C to the lower position, and the corresponding ATV
level will be flashing. Set this number to around 40.
•Stand clear of the heli and slowly spool it up. You will
notice a point where the heliâs RPM increases quickly and plateaus. This is
occurring because the RPM has reached the governing threshold and the TJ is
bringing up RPM to the target level.
•Bring the throttle up a little more to ensure that the unit is
truly in governing range, the RPM should remain constant.
•REDUCE THE THROTTLE BACK TO IDLE This is
important, because if you flip switch C to the top position now before the
other ATV is set, the RPM could increase to the point where the heli will
lift off while you have your head down concentrating on setting the TX.
•Now flip switch C to the top position. Repeat the RPM setting
procedure to set the desired RPM for this switch position.
•For a typical setup using a stock Raptor 30 V2 with throttle
ATVâs at 100/100, channel 7 ATVâs required were:
Low switch position 40
which gave 1600 RPM
Top switch position 49
which gave 1700 RPM
•Individual setups and numbers may vary, so it is best to start
with a low channel 7 ATV and work UP. This ensures that the RPM is not too
high whilst commencing the ATV setting process.
1.Because the heli had been setup without the governor in the initial
instance, the desired stick position for hover should remain the same.
However for minor adjustments, move the hover pitch knob as required to
fine-tune the hover stick position (the hover pitch function must be enabled
in the advanced menu).
2.During flight-testing, perform a vertical climb from the hover by
progressively applying throttle up to full throttle. The RPM should remain
constant through out the climb. If the engine bogs down at the top end, this
may mean that the pitch is set too high for the power of the engine and that
the governor is at the full throttle stop. In this instance reduce top end
pitch via the pitch curve. This is unlikely if the heli has been setup
correctly without the governor in the initial instance.
Whilst the above is fairly long winded, in practice it
is easy and logical to achieve and once set the TJ will do a great job.