14 CFR 27.1545
§ 27.1545 Airspeed indicator.
United States · 14 CFR — Aeronautics and Space · Status: effective
Cite this
- Citation
- 14 CFR 27.1545, § 27.1545 Airspeed indicator, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/54656
- Permanent ID
ys:prov:54656@1- SHA-256
a69c7d6ea88d8f7ad7175bae3679942c63e2438805b9acaabaa10642bcb7a672
The hash is SHA-256 of this version's text, with every run of whitespace collapsed to a single space and the ends trimmed. The ID always leads back here, and checking it says whether the text you cited is still the current version.
Full text
(a) Each airspeed indicator must be marked as specified in paragraph (b) of this section, with the marks located at the corresponding indicated airspeeds.
(b) The following markings must be made:
(1) A red line—
(i) For rotorcraft other than helicopters, at VNE.
(ii) For helicopters, at VNE (power-on).
(iii) For helicopters, at VNE (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).
(2) [Reserved]
(3) For the caution range, a yellow range.
(4) For the normal operating range, a green or unmarked range.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.