636
14 CFR Ch. I (1–1–14 Edition)
Pt. 27
27.549
Fuselage, landing gear, and rotor
pylon structures.
E
MERGENCY
L
ANDING
C
ONDITIONS
27.561
General.
27.562
Emergency landing dynamic condi-
tions.
27.563
Structural ditching provisions.
F
ATIGUE
E
VALUATION
27.571
Fatigue evaluation of flight struc-
ture.
27.573
Damage tolerance and fatigue evalua-
tion of composite rotorcraft structures.
Subpart D—Design and Construction
G
ENERAL
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 pro-
tection.
27.611
Inspection provisions.
27.613
Material strength properties and de-
sign values.
27.619
Special factors.
27.621
Casting factors.
27.623
Bearing factors.
27.625
Fitting factors.
27.629
Flutter.
R
OTORS
27.653
Pressure venting and drainage of
rotor blades.
27.659
Mass balance.
27.661
Rotor blade clearance.
27.663
Ground resonance prevention means.
C
ONTROL
S
YSTEMS
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 con-
trol system.
L
ANDING
G
EAR
27.723
Shock absorption tests.
27.725
Limit drop test.
27.727
Reserve energy absorption drop test.
27.729
Retracting mechanism.
27.731
Wheels.
27.733
Tires.
27.735
Brakes.
27.737
Skis.
F
LOATS AND
H
ULLS
27.751
Main float buoyancy.
27.753
Main float design.
27.755
Hulls.
P
ERSONNEL AND
C
ARGO
A
CCOMMODATIONS
27.771
Pilot compartment.
27.773
Pilot compartment view.
27.775
Windshields and windows.
27.777
Cockpit controls.
27.779
Motion and effect of cockpit controls.
27.783
Doors.
27.785
Seats, berths, litters, safety belts,
and harnesses.
27.787
Cargo and baggage compartments.
27.801
Ditching.
27.805
Flight crew emergency exits.
27.807
Emergency exits.
27.831
Ventilation.
27.833
Heaters.
F
IRE
P
ROTECTION
27.853
Compartment interiors.
27.855
Cargo and baggage compartments.
27.859
Heating systems.
27.861
Fire protection of structure, controls,
and other parts.
27.863
Flammable fluid fire protection.
E
XTERNAL
L
OADS
27.865
External loads.
M
ISCELLANEOUS
27.871
Leveling marks.
27.873
Ballast provisions.
Subpart E—Powerplant
G
ENERAL
27.901
Installation.
27.903
Engines.
27.907
Engine vibration.
R
OTOR
D
RIVE
S
YSTEM
27.917
Design.
27.921
Rotor brake.
27.923
Rotor drive system and control mech-
anism tests.
27.927
Additional tests.
27.931
Shafting critical speed.
27.935
Shafting joints.
27.939
Turbine engine operating characteris-
tics.
F
UEL
S
YSTEM
27.951
General.
27.952
Fuel system crash resistance.
27.953
Fuel system independence.
27.954
Fuel system lightning protection.
27.955
Fuel flow.
27.959
Unusable fuel supply.
27.961
Fuel system hot weather operation.
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