BRISTELL BRMAERO Bristell B23, Руководство по обслуживанию

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Airplane Maintenance Manual Bristell
B23
Chapter 51
Chapter 51 Page 6 Issue: 30-Sep-2020
▶ Install bolts in two control surface ball bearings (flap,
rudder).
▶ Install a wire in the piano hinges (aileron, elevator, trim
tabs).
▶ Place control surfaces friction free on two mandrels.
Bolts in ball bearings need to be in line and aligned
horizontally.
▶ Check that the mandrels do not interfere with the control
surfaces.
▶ Determine control surface support weight at the point of
longest moment arm (weighing point) with the surfaces
in level attitude. Use a conventional spring balance or
table balance.
▶ Enter the support weights in the table and enter in
respective column of record form.
▶ Measure distances of hinge center line to weighing
points and enter the values in record form.
▶ Calculate the control surface moments and note in
record sheet
NOTE Limits given in the result form are for the finished part with mass
balancing weights, trim tabs and surface treatment.
Check that weight and balance are within limits. If rework is required,
contact BRM Aero.
(Re-) Install the control surfaces only if the weight and moment values
fall within limits.