Sec. 23.655 - Installation.
(a) Movable surfaces must be installed
so that there is no interference between any surfaces, their bracing, or
adjacent fixed structure, when one surface is held in its most critical
clearance positions and the others are operated through their full
(b) If an adjustable stabilizer is used,
it must have stops that will limit its range of travel to that allowing
safe flight and landing.
[Doc. No. 4080, 29 FR 17955, Dec. 18, 1964, as
amended by Amdt. 23-45, 58 FR 42164, Aug. 6, 1993]