CAT-A Module 12  Helicopter Structures and Systems: for CAT-A3 and A4 licenses

CAT-A Module 12
Helicopter Structures and Systems

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Note: The content and layout of this book is provided by TEC Aviation Academy of Copenhagen Denmark. It is unlike the others in the ATB Part 66 series as it reads more like a powerpoint presentation than a traditional textbook.

That said, this book will serve both EASA and FAA Part 147 schools as well as students and experienced technicians wishing a complete understanding of both basic and the most advanced helicopters from rotor and flight controls through all basic aircraft systems including electric, hydraulic, environmental, fire protection, as well as avionics and onboard maintenance systems, and more. (see table of contents below)

eBook File Description:

File Type:
secure pdf ebook
yes, 20 pages only
Offline Access:
System Reqs:
Windows, Macintosh, iPad, and more

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Rotary Wing Aerodynamics:
gyroscopic precession
torque reaction and directional control
dissymmetry of lift, blade up stall
translating tendency
coriolis effect
vortex ring state, power settling, overpitching
ground effect

Flight Control Systems:
cyclic control
collective control
yaw control, anti-torque, tail rotor, bleed air
main rotor head
blade dampers
rotor blade construction and attachment
trim control
system operation, manual, hydraulic, electrical, fly-by-wire
artificial feel
balance and rigging

Blade Tracking and Vibration Analysis:
rotor alignment
rotor tracking
static and dynamic balance
vibratin types and reduction
ground resonance

gear boxes; main and tail rotors clutches; free wheel and rotor brakes tail rotor drive shafts, flexible couplings, bearings, vibration dampers, bearing hangers

Airframe Structures:
airworthiness requirements for structural strength
primary, secondary, tertiary structures
fail safe, safe life, and damage tolerance
zonal and station identification
stresses and strains
drains and ventilation
system installation provisions
lightning strike protection
construction methods
pylon, stabilizer, and undercarriage attachments
seat installation
doors; construction, mechanisms, operation
windows and windscreens
fuel storage
engine mounts
structure assembly techniques
surface protection
surface cleaning
airframe symmetry

Air Conditioning:
air supply
air conditioning systems
distribution systems
flow and temperature control
protection and warning devices

Instrument and Avionics Systems:
pitot static instruments
gyroscopic instruments
compass instruments
vibration indication (HUMS)
glass cockpit
other system indications

avionics fundamentals and operation
auto flight
communication systems
navigation systems

Electrical Power:
battery installation and operation
DC power generation
AC power generation
emergency power generation
voltage regulation
circuit protection
power distribution
inverters, transformers, rectifiers
external power

Equipment and Furnishings:
seats, harnesses, and belts
lifting systems
emergency floatation systems
cabin layout
cargo retention
equipment layout
cabin furnishing installation

Fire Protection:
fire and smoke detection and warning
fire extinguishing systems
system tests

Fuel Systems:
system layout
fuel tanks
supply systems
dumping, venting, and draining
cross feed and transfer
indications and warnings
refueling and defueling

Hydraulic Power:
system layout
hydraulic fluids
reservoirs and accumulators
pressure generation; electric, mechanical, pneumatic
emergency pressure generation
pressure control
power distribution
indication and warning
interface with other systems

Ice and Rain Protection:
ice formation, classification, detection
anti-icing and de-icing systems
rain repellent and removal
probe and drain heating
wiper systems

Landing Gear:
construction, shock absorbing
extension and retraction systems
indication and warnings
wheels, tires, brakes
air-ground sensing
skids, floats

external, navigation, landing, taxiing
internal, cabin, cockpit, cargo

system layout
sources; engine APU, compressors, reservoirs, ground supply
pressure control
indications and warning
interfaces with other systems

Integrated Modular Avionics:
typically integrated functions
core system
network components

On Board Maintenance Systems:
central maintenance computers
data loading systems
electronic library system
structure monitoring

Information Systems:
storing, updating, and retrieving data
general information systems
flight deck information
maintenance information systems
cabin information system
misc information system


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