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Dwg. 56201-2
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INSTALLATION, ADJUSTMENT AND FUNCTIONAL CHECK
2.0
Installation Procedure
2.1
The installation of the SCc AoA System requires installing the Lift Transducer on the leading
edge of the wing, installing the Indexer Computer, and system wiring. After installation, both
a ground functional and a flight check are performed. The data from the flight check is to be
recorded in Appendix B. If needed, Appendix C provides a guide for adjustment of the Lift
Transducer mounting plate on the wing to adjust the results obtained from the flight test data.
Lift Transducer Wing Position
2.2
The following is a procedure for finding the initial location for the mounting of the Lift
Transducer.
The installation of the SCc Lift Transducer should typically be made on the wing opposite to
the existing stall warning device, at the same or close to the same spanwise position. This
location may be varied in order to facilitate the ease of installation access of the wing
components through an existing wing panel access.
The SCc System cannot be used as a replacement for or
modification of an existing FAA approved Stall Warning System.
NOTE
The location should be clear of any internal interference from ribs and other aircraft structure.
Be sure to note locations of pitot lines, wiring, fuel tanks, fuel lines, and other aircraft
hardware to avoid any interference.
The Lift Transducer is to be mounted initially at 1% chord. Use the method described in
Appendix A to determine the proper location for mounting the Lift Transducer. Place a mark
on the wing at this location. This will be the center of the cutout for the Lift Transducer
Doubler.
Doubler Installation
2.3
Using the Doubler provided as a template, contour and temporarily tape the Doubler to the
leading edge of the wing. Align the center of the cutout of the Doubler with the leading edge
1% chord mark. Using a fine-tipped marker, trace the outline of the Doubler cutout so as to
mark the area of aircraft skin that is to be removed from the wing’s leading edge for the
installation of the Lift Transducer.
Remove the Doubler and reserve it for installation inside the wing.
Cut through the wing, as outlined by the Doubler cutout, to create the Lift Transducer
mounting hole.
Through a nearby access panel, insert the Doubler into the wing and align it with the leading
edge wing hole. Bend the Doubler to match the wing contour at this position. Rivet the
Doubler to the inside wing surface using appropriate rivets, in accordance with AC 43-13.
Ensure that sufficient space is left for rivnut installation.
Place the Lift Transducer in the hole, forming the Mounting Plate to the contour of the leading
edge. As with the Doubler, the Lift Transducer Mounting Plate has been contoured to the
approximate curvature of the wing’s leading edge. Final adjustments to the Lift Transducer
mounting plate will be made during the installation on the wing.
