# 14 C.F.R. § 27.1505 (2026): Never-exceed speed

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/CFR_T14_P27_S27_1505

## Section

- **Citation:** 14 C.F.R. § 27.1505 (2026)
- **Heading:** Never-exceed speed
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Title 14 CFR: Aeronautics and Space / Chapter I: FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION / Part 27: AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFT / Subpart G: Operating Limitations and Information / § 27.1505: § 27.1505   Never-exceed speed.

## Text

(a) The never-exceed speed, V
NE,
must be established so that it is—
(1) Not less than 40 knots (CAS); and
(2) Not more than the lesser of—
(i) 0.9 times the maximum forward speeds established under § 27.309;
(ii) 0.9 times the maximum speed shown under §§ 27.251 and 27.629; or
(iii) 0.9 times the maximum speed substantiated for advancing blade tip mach number effects.
(b) V
NE
may vary with altitude, r.p.m., temperature, and weight, if—
(1) No more than two of these variables (or no more than two instruments integrating more than one of these variables) are used at one time; and
(2) The ranges of these variables (or of the indications on instruments integrating more than one of these variables) are large enough to allow an operationally practical and safe variation of V
NE
.
(c) For helicopters, a stabilized power-off V
NE
denoted as V
NE
(power-off) may be established at a speed less than V
NE
established pursuant to paragraph (a) of this section, if the following conditions are met:
(1) V
NE
(power-off) is not less than a speed midway between the power-on V
NE
and the speed used in meeting the requirements of—
(i) § 27.65(b) for single engine helicopters; and
(ii) § 27.67 for multiengine helicopters.
(2) V
NE
(power-off) is—
(i) A constant airspeed;
(ii) A constant amount less than power-on V
NE
; or
(iii) A constant airspeed for a portion of the altitude range for which certification is requested, and a constant amount less than power-on V
NE
for the remainder of the altitude range.
(Secs. 313(a), 601, 603, 604, and 605 of the Federal Aviation Act of 1958 (49 U.S.C. 1354(a), 1421, 1423, 1424, and 1425); and sec. 6(c) of the Dept. of Transportation Act (49 U.S.C. 1655(c)))
[Amdt. 27-2, 33 FR 964, Jan. 26, 1968, and Amdt. 27-14, 43 FR 2325, Jan. 16, 1978; Amdt. 27-21, 49 FR 44435, Nov. 6, 1984]

## Nearby sections

- [14 C.F.R. § 27.1501 (2026) § 27.1501   General.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P27_S27_1501.md)
- [14 C.F.R. § 27.1503 (2026) § 27.1503   Airspeed limitations: general.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P27_S27_1503.md)
- [14 C.F.R. § 27.1505 (2026) § 27.1505   Never-exceed speed.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P27_S27_1505.md)
- [14 C.F.R. § 27.1509 (2026) § 27.1509   Rotor speed.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P27_S27_1509.md)
- [14 C.F.R. § 27.1519 (2026) § 27.1519   Weight and center of gravity.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P27_S27_1519.md)
- [14 C.F.R. § 27.1521 (2026) § 27.1521   Powerplant limitations.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P27_S27_1521.md)
- [14 C.F.R. § 27.1523 (2026) § 27.1523   Minimum flight crew.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P27_S27_1523.md)
- [14 C.F.R. § 27.1525 (2026) § 27.1525   Kinds of operations.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P27_S27_1525.md)
- [14 C.F.R. § 27.1527 (2026) § 27.1527   Maximum operating altitude.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P27_S27_1527.md)
- [14 C.F.R. § 27.1529 (2026) § 27.1529   Instructions for Continued Airworthiness.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P27_S27_1529.md)
- [14 C.F.R. § 27.1541 (2026) § 27.1541   General.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P27_S27_1541.md)
- [14 C.F.R. § 27.1543 (2026) § 27.1543   Instrument markings: general.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P27_S27_1543.md)
- [14 C.F.R. § 27.1545 (2026) § 27.1545   Airspeed indicator.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P27_S27_1545.md)
- [14 C.F.R. § 27.1547 (2026) § 27.1547   Magnetic direction indicator.](https://www.frixlaw.com/law-library/statutes/CFR_T14_P27_S27_1547.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/CFR_T14_P27_S27_1505. Check the current official text before relying on it. Not legal advice.