ASSIGNMENT 11
Textbook Assignment:
“Rotary-Wing Flight Control Systems,” chapter 10, pages 10-1 through
10-20, and “Aircraft Wheels, Tires, and Tubes,” chapter 11, pages 11-1
through 11-28.
11-1.
The word “helicopter” means
helical wing, which comes from
what language?
Greek
French
Hebrew
Italian
11-2.
Helicopter lift is provided by
what means?
The engines
The fixed wings
The rotor blades
The fuselage design
11-3.
Rotor blades that are highly
polished will reduce which of the
following forces?
1.
Lift
2.
Drag
3.
Speed
4.
Velocity
11-4.
Rotor blade dissymmetry is created
by what means?
1.
By horizontal flight only
2.
By hovering in a wind
condition only
3.
By horizontal flight or
hovering in a wind condition
4.
By hovering in a no-wind
condition
11-5.
What method corrects dissymmetry
by equalizing lift?
Coning
Fluttering
Autorotating
Blade flapping
11-6.
What type of main rotor allows
each of its blades to move
vertically and horizontally?
A hinged rotor
A horizontal rotor
An adjustable rotor
An articulated rotor
11-7.
The maximum ground cushion effect
is achieved during what condition?
0 knots
7 knots
12 knots
15 knots
11-8.
What is the most common
helicopter?
Dual main rotor
Single main rotor
Tandem main rotor
Coaxial main rotor
type of
11-9.
The lateral movement of a
helicopter is controlled by which
of the following systems?
Cyclic only
Collective only
Cyclic and collective only
Cyclic, collective, and rotary
rudder
11-10.
The friction lock on a
helicopter’s collective stick is
used for which of the following
purposes?
1.
To provide feel when operating
the controls only
2.
To prevent the stick from
creeping during flight only
3.
To provide feel when operating
the controls and to prevent
the stick from creeping during
flight
4.
To provide a means of locking
the main rotor assembly when
parking the helicopter in high
winds
11-11.
The negative force gradient spring
on a rotary rudder control system
is preloaded to what maximum
amount of force?
1.
500 lb
2.
600 lb
3.
700 lb
4.
800 lb
11-12.
What component integrates
collective pitch control movements
with fore and aft, lateral, and
directional movements?
The auxiliary servo cylinder
The primary servo cylinder
The rotor servo
The mixing unit
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