User Manual

USER GUIDE
35
5.3 Mounting the Optional ET PSU
The optional ET PSU can be mounted with double sided foam tape, or with other methods. Before mounting
the Current Sensor/PSU, make sure that your ESC/Motor connector, battery connector and PSU to MicroVector
harness will reach.
It is recommended that the Current Sensor/PSU be mounted so that cooling air can flow into the one of the
openings of the current sensor during flight.
5.4 Mounting the Optional Pitot Tube
If you have the optional airspeed sensor, the pitot tube should be mounted as follows.
Using two lengths of the included small diameter silicon tube, the pressure and static connections of the pitot
tube connect to the “+” and “-” ports of the
MicroSensor, respectively, as shown
below.
It is best to mount the pitot tube in your
model first, then determine where you
will mount the sensor, and then cut the
two lengths of silicon tube so they reach
between the two. Note that the sensor
itself can be mounted anywhere in the
model.
Follow these guidelines when mounting
the pitot tube:
1) The pickup end of the pitot tube (the silver colored tip) should be pointing toward the direction of the
model’s travel. While best results will be obtained if the pitot tube is perfectly aligned with the direction
of travel in both axes, the “Prandtl” design of the tube will compensate somewhat for higher angles of
attack.
2) The static holes on the pitot tube (shown in the figure) should extend at least 1/2” (13mm) past the wing’s
leading edge or the nose cone, or past any other obstructions - the farther out, the better. This is to
ensure that the static holes and pitot pickup are in undisturbed air.
3) For prop planes, it’s important that the tube be placed so that it is not directly in the plane’s prop-wash,
which will result in erroneous readings. The best place to install the tube is on the leading edge of the wing
several inches out from the fuselage, as shown in the figure.
4) For jets, gliders, or “pusher” prop planes, the nose cone often provides a perfect mounting location.
After pitot tube installation, it is recommended that you glue or otherwise attach the silicone hose to the
airframe, to reduce the chance that hose vibration or movement which could cause erroneous readings.
Note: The pitot airspeed can be calibrated as described in the section 8.5.3 – ‘Pitot Airspeed Calibration’.