(1) The maximum design r.p.m. determined under §29.309(b); and
(2) The maximum r.p.m. shown during the type tests.
(b) Minimum power-off. The minimum power-off rotor speed must be established so that it is not less than 105 percent of the greater of—
(1) The minimum shown during the type tests; and
(2) The minimum determined by design substantiation.
(c) Minimum power-on. The minimum power-on rotor speed must be established so that it is—
(1) Not less than the greater of—
(i) The minimum shown during the type tests; and
(ii) The minimum determined by design substantiation; and
(2) Not more than a value determined under §29.33 (a)(1) and (c)(1).
NEXT: Sec. 29.1517 - Limiting height-speed envelope.
PREVIOUS: Sec. 29.1505 - Never-exceed speed.