§29.1545. Airspeed indicator.
14 C.F.R. § 29.1545
Each airspeed indicator must be marked as specified in paragraph (b) of this section, with the marks located at the corresponding indicated airspeeds.
The following markings must be made:
A red line—
For rotorcraft other than helicopters, at V<I>NE</I>.
For helicopters, at V<I>NE</I> (power-on).
For helicopters, at V<I>NE</I> (power-off). If VNE (power-off) is less than VNE (power-on) and both are simultaneously displayed, the red line at VNE (power-off) must be clearly distinguishable from the red line at VNE (power-on).
[Reserved]
For the caution range, a yellow range.
For the normal operating range, a green or unmarked range.
Notes, amendments, and revision history
Amendments
[Doc. No. 5084, 29 FR 16150, Dec. 3, 1964, as amended by Amdt. 29-15, 43 FR 2327, Jan. 16, 1978; 43 FR 3900, Jan. 30, 1978; Amdt. 29-17, 43 FR 50602, Oct. 30, 1978; Amdt. 29-59, 88 FR 8740, Feb. 10, 2023]
Authority
Authority: 49 U.S.C. 106(f), 106(g), 40113, 44701-44702, 44704.
Source
Source: Docket No. 5084, 29 FR 16150, Dec. 3, 1964, unless otherwise noted.
Amendments
[Doc. No. 5084, 29 FR 16150, Dec. 3, 1964, as amended by Amdt. 29-15, 43 FR 2327, Jan. 16, 1978; 43 FR 3900, Jan. 30, 1978; Amdt. 29-17, 43 FR 50602, Oct. 30, 1978; Amdt. 29-59, 88 FR 8740, Feb. 10, 2023]