Pt. 27
27.239
27.241

14 CFR Ch. I (1-1-19 Edition)
Spray characteristics.
Ground resonance.

27.573 Damage tolerance and fatigue evaluation of composite rotorcraft structures.

MISCELLANEOUS FLIGHT REQUIREMENTS
27.251

Subpart D - Design and Construction

Vibration.

GENERAL

Subpart C - Strength Requirements

27.601 Design.
27.602 Critical parts.
27.603 Materials.
27.605 Fabrication methods.
27.607 Fasteners.
27.609 Protection of structure.
27.610 Lightning and static electricity protection.
27.611 Inspection provisions.
27.613 Material strength properties and design values.
27.619 Special factors.
27.621 Casting factors.
27.623 Bearing factors.
27.625 Fitting factors.
27.629 Flutter.

GENERAL
27.301
27.303
27.305
27.307
27.309

Loads.
Factor of safety.
Strength and deformation.
Proof of structure.
Design limitations.
FLIGHT LOADS

27.321 General.
27.337 Limit maneuvering load factor.
27.339 Resultant limit maneuvering loads.
27.341 Gust loads.
27.351 Yawing conditions.
27.361 Engine torque.

ROTORS

CONTROL SURFACE AND SYSTEM LOADS
27.391
27.395
27.397
27.399
27.411
27.427

27.653 Pressure venting and drainage of
rotor blades.
27.659 Mass balance.
27.661 Rotor blade clearance.
27.663 Ground resonance prevention means.

General.
Control system.
Limit pilot forces and torques.
Dual control system.
Ground clearance: tail rotor guard.
Unsymmetrical loads.

CONTROL SYSTEMS

GROUND LOADS
27.471 General.
27.473 Ground loading conditions and assumptions.
27.475 Tires and shock absorbers.
27.477 Landing gear arrangement.
27.479 Level landing conditions.
27.481 Tail-down landing conditions.
27.483 One-wheel landing conditions.
27.485 Lateral drift landing conditions.
27.493 Braked roll conditions.
27.497 Ground loading conditions: landing
gear with tail wheels.
27.501 Ground loading conditions: landing
gear with skids.
27.505 Ski landing conditions.
WATER LOADS
27.521

Float landing conditions.
MAIN COMPONENT REQUIREMENTS

27.547 Main rotor structure.
27.549 Fuselage, landing gear, and rotor
pylon structures.

27.671 General.
27.672 Stability augmentation, automatic,
and power-operated systems.
27.673 Primary flight control.
27.674 Interconnected controls.
27.675 Stops.
27.679 Control system locks.
27.681 Limit load static tests.
27.683 Operation tests.
27.685 Control system details.
27.687 Spring devices.
27.691 Autorotation control mechanism.
27.695 Power boost and power-operated control system.
LANDING GEAR
27.723
27.725
27.727
27.729
27.731
27.733
27.735
27.737

Shock absorption tests.
Limit drop test.
Reserve energy absorption drop test.
Retracting mechanism.
Wheels.
Tires.
Brakes.
Skis.

27.751
27.753
27.755

Main float buoyancy.
Main float design.
Hulls.

FLOATS AND HULLS

EMERGENCY LANDING CONDITIONS

spaschal on DSK3GDR082PROD with CFR

27.561 General.
27.562 Emergency landing dynamic conditions.
27.563 Structural ditching provisions.
FATIGUE EVALUATION
27.571 Fatigue evaluation of flight structure.

PERSONNEL AND CARGO ACCOMMODATIONS
27.771
27.773
27.775

Pilot compartment.
Pilot compartment view.
Windshields and windows.

486

VerDate Sep<11>2014

12:50 Apr 30, 2019

Jkt 247046

PO 00000

Frm 00496

Fmt 8010

Sfmt 8010

Y:\SGML\247046.XXX

247046