(a) The flap extended speed VFE must be established so that it is--
(1) Not less than the minimum value of VF allowed in Sec. 23.345(b); and
(2) Not more than VF established under Sec. 23.345(a), (c), and (d).
(b) Additional combinations of flap setting, airspeed, and engine power may be established if the structure has been proven for the corresponding design conditions. [Doc. No. 4080, 29 FR 17955, Dec. 18, 1964; 30 FR 258, Jan. 9, 1965, as amended by Amdt. 23-50, 61 FR 5192, Feb. 9, 1996]