問題一覧
1
Blade flat surface is known as
blade face or thrust face.
2
Two position propeller uses
low pitch for takeoff and climb and high pitch for cruise
3
Wooden propeller disadvantages
easily damaged and difficult to repair .
4
The advantage of Metal propeller over wood propeller
is more durability.
5
Steel propellers are normally of
hollow construction helps to reduce weight.
6
The most widely used types of propellers in aviation is
aluminum alloy propellers
7
Metal at the tip and along the leading edge of a wooden propeller
for protection reason
8
The purpose of Small holes drilled into each blade tip
for moisture drainage
9
Front and Rear Cones are used to
centralize a hub on the crankshaft.
10
Propeller blade Counterweights
counteracting the CTM of the blade
11
The purpose of a foam core in the a composite propeller is to
reduce vibration.
12
The spinner bulkhead used to hold spinner in place
it installed between propeller shaft flange and propeller.
13
spinner aerodynamic function which is
streamlining the engine installation and directing cool air into the openings in the cowling
14
The cuff is designed primarily to
increase the flow of cooling air to the engine nacelle
15
The centrifugal flyweight mechanism is used with
constant speed propeller and houses inside a separate propeller governor.
16
Variable Pitch Propeller
can change the blade angle during flight
17
can change the blade angle during flight
inside the propeller hub.
18
the propeller moved to fine pitch by
engine oil
19
The Propeller Blade strength and Stiffness are determined by
blade material, diameter and orientation.
20
The forces causes the hartzell constant speed propeller blade to rotates to high pitch position
by feather spring and counterweight force
21
the type propeller shaft that normally used to install a fixed pitch metal propeller
Is Flange propeller shaft
22
Wood propeller is constructed from
a number of separate layers
23
The first popular controllable pitch propeller where hydraulically actuated by
engine oil
24
In an under speed condition the blade are turned to
fine pitch
25
In counterweight propeller what is used to make the propeller move to higher pitch
centrifugal force acting on counterweight .
26
Ground adjustable propeller hub is usually
made of two piece steel construction with clamps