Section 27.1
27.1325
27.1327
27.1329
27.1335
27.1337

14 CFR Ch. I (1-1-19 Edition)
Static pressure systems.
Magnetic direction indicator.
Automatic pilot system.
Flight director systems.
Powerplant instruments.

ELECTRICAL SYSTEMS AND EQUIPMENT
27.1351 General.
27.1353 Storage battery design and installation.
27.1357 Circuit protective devices.
27.1361 Master switch.
27.1365 Electric cables.
27.1367 Switches.
LIGHTS
27.1381 Instrument lights.
27.1383 Landing lights.
27.1385 Position light system installation.
27.1387 Position light system dihedral angles.
27.1389 Position light distribution and intensities.
27.1391 Minimum intensities in the horizontal plane of forward and rear position
lights.
27.1393 Minimum intensities in any vertical
plane of forward and rear position lights.
27.1395 Maximum intensities in overlapping
beams of forward and rear position
lights.
27.1397 Color specifications.
27.1399 Riding light.
27.1401 Anticollision light system.
SAFETY EQUIPMENT
27.1411 General.
27.1413 Safety belts.
27.1415 Ditching equipment.
27.1419 Ice protection.
27.1435 Hydraulic systems.
27.1457 Cockpit voice recorders.
27.1459 Flight data recorders.
27.1461 Equipment containing high energy
rotors.

Subpart G - Operating Limitations and
Information
27.1501

General.
OPERATING LIMITATIONS

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27.1503 Airspeed limitations: general.
27.1505 Never-exceed speed.
27.1509 Rotor speed.
27.1519 Weight and center of gravity.
27.1521 Powerplant limitations.
27.1523 Minimum flight crew.
27.1525 Kinds of operations.
27.1527 Maximum operating altitude.
27.1529 Instructions for Continued
worthiness.

ROTORCRAFT FLIGHT MANUAL AND APPROVED
MANUAL MATERIAL
27.1581 General.
27.1583 Operating limitations.
27.1585 Operating procedures.
27.1587 Performance information.
27.1589 Loading information.
APPENDIX A TO PART 27 - INSTRUCTIONS FOR
CONTINUED AIRWORTHINESS
APPENDIX B TO PART 27 - AIRWORTHINESS CRITERIA
FOR
HELICOPTER
INSTRUMENT
FLIGHT
APPENDIX C TO PART 27 - CRITERIA FOR CATEGORY A
APPENDIX D TO PART 27 - HIRF ENVIRONMENTS AND EQUIPMENT HIRF TEST LEVELS

AUTHORITY: 49 U.S.C. 106(f), 106(g), 40113,
44701-44702, 44704.
SOURCE: Docket No. 5074, 29 FR 15695, Nov.
24, 1964, unless otherwise noted.

Subpart A - General
Section 27.1

Applicability.

(a) This part prescribes airworthiness
standards for the issue of type certificates, and changes to those certificates, for normal category rotorcraft
with maximum weights of 7,000 pounds
or less and nine or less passenger seats.
(b) Each person who applies under
Part 21 for such a certificate or change
must show compliance with the applicable requirements of this part.
(c) Multiengine rotorcraft may be
type certified as Category A provided
the requirements referenced in appendix C of this part are met.
[Doc. No. 5074, 29 FR 15695, Nov. 24, 1964, as
amended by Amdt. 27-33, 61 FR 21906, May 10,
1996; Amdt. 27-37, 64 FR 45094, Aug. 18, 1999]

Air-

MARKINGS AND PLACARDS
27.1541
27.1543

27.1545 Airspeed indicator.
27.1547 Magnetic direction indicator.
27.1549 Powerplant instruments.
27.1551 Oil quantity indicator.
27.1553 Fuel quantity indicator.
27.1555 Control markings.
27.1557 Miscellaneous markings and placards.
27.1559 Limitations placard.
27.1561 Safety equipment.
27.1565 Tail rotor.

Section 27.2 Special
ments.

retroactive

(a) For each rotorcraft manufactured
after September 16, 1992, each applicant
must show that each occupant-s seat is

General.
Instrument markings: general.

488

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