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Systems
Systems
44
Other
Not Applicable
11/15/2010
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Term
Define the term WARNING
 Definition
An operating procedure, practice, etc., which if not correctly followed could result in personal injury or loss of life.
Term
Define the term CAUTION.
 Definition
An operating procedure, practice, etc., which if not strictly observed could result in damage to or destruction of equipment.
Term
Define the term NOTE.
 Definition
An operating procedure, condition, etc., which is essential to highlight.
Term
Define the term SHALL.
 Definition
A mandatory procedure.
Term
Define the turn SHOULD.
 Definition
Recommended or preferred, not mandatory.
Term
Define the terms MAY or NEED NOT.
 Definition
An optional procedure.
Term
Define the procedural term WILL.
 Definition
Indicate futurity (in the future).
Term
The three sections of the TH-67 fuselage are the ______, ______, and the ______ Section.
 Definition
Forward, intermediate, tailboom
Term
The VFR & A+ configuration have one pitot tube that provides ______ air to the airspeed indicator and two vents that provide ______ air to the static instruments.
 Definition
Impact (ram), static
Term
The IFR configuration has ______ ______ pitot/static systems.
 Definition
Two, independent
Term
The TH-67 ______ light, located on the aircraft nose provides a 450-watt lamp in an extendible and slew able mount.
 Definition
Search
Term
The TH-67 ______ light located on the aircraft nose provides a 250-watt lamp in a fixed mount.
 Definition
Landing
Term
How many switches are used to control the search light in the NVG mode on the A+ configuration?
 Definition
Three switches; one to select the IR light, one to turn the light on, and one to slew the search light to the desired position.
Term
What does the term semi-monocoque mean?
 Definition
The aircraft skin provides some of the structural strength.
Term
The TH-67 intermediate section uses a ______ type of construction.
 Definition
Semi-monocoque
Term
Which section of the aircraft contains the engine?
 Definition
The intermediate section.
Term
The TH-67 tailboom section uses ______ ______ type of construction.
 Definition
Fully-monocoque
Term
State the purpose of the horizontal stabilizer.
 Definition
The horizontal stabilizer maintains a desired aircraft attitude through the high end of the airspeed range. The metal strip at its leading edge provides for autorotational stability.
Term
State the purpose of the vertical fin.
 Definition
The vertical fin, being displaced (canted) 5 ½ degrees to the right, reduces the tail rotor thrust requirements in the forward flight.
Term
At what airspeed is the tail rotor fully off-loaded in forward flight?
 Definition
Between 100 and 110 knots.
Term
The nomenclature of the TH-67 power plant is the model ______.
 Definition
250-C20J
Term
State the maximum torque available (MAX TQ AVAIL).
 Definition
100% TQ for five minutes maximum.
Term
State the maximum continuous power (TQ AVAIL CONT) of the TH-67 power plant.
 Definition
85% TQ (270 SHP) no time limit.
Term
Can the maximum transient power setting (110% TQ) be used intentionally?
 Definition
No, intentional use is prohibited.
Term
State the diameter of the TH-67 main motor.
 Definition
Main rotor diameter is 33’ 4”.
Term
What type of airfoil is the main rotor blade?
 Definition
An asymmetrical airfoil.
Term
How many degrees of twist are there in the main rotor blade?
 Definition
A negative 10 degrees.
Term
State the tail rotor diameter.
 Definition
Tail rotor diameter is 5’5”.
Term
How many degrees of pitch are in the tail rotor with full left pedal applied?
 Definition
23 degrees.
Term
State the TH-67 VNE.
 Definition
130 knots.
Term
State the maximum airspeed limitation with 85- 100% TQ (torque) applied.
 Definition
80 knots (speeds above 80 knots with more than 85% TQ applied causes the rotor system to wobble).
Term
State the minimum rate of descent airspeed in autorotation.
 Definition
52 knots @ 394 RPM (100% rotor RPM)
Term
State the maximum glide distance airspeed in autorotation.
 Definition
69 knots @ 394 RPM (100% rotor RPM)
Term
State the minimum crew restrictions VFR and IFR.
 Definition
VFR minimum 1 pilot, IFR minimum 2 pilots (IMC).
Term
State the limitations concerning fuel types.
 Definition
JP4 (Jet B) may be used in all temperature ranges. Alternate—JP5, Jet A and JetA1 unusable at temperatures colder than -25ºF (-32ºC). Minimum pressure of 8 psi required at temperatures of 0ºF (-17.8ºC) to -25ºF (-32ºC). Minimum pressure of 4 psi required at temperatures warmer than 0ºF (17.8ºC).
Term
State the fuel capacity of the TH-67 fuel cell.
 Definition
84.1 US gallons total; 82.6 US gallons usable.
Term
Why must the engine oil system be drained and refilled if transmission and engine oils are intermixed?
 Definition
To prevent damage to the engine oil seals.
Term
In a conventional helicopter, what are the three basic flight controls that are used to maneuver the aircraft?
 Definition
The cyclic, collective and tail rotor (anti-torque) pedals.
Term
In a conventional helicopter, what flight control directs the total lift/thrust of the main rotor system?
 Definition
The cyclic is used to direct the total lift/thrust of the main rotor system in flight.
Term
Which conventional helicopter flight control will input a pitch change to all main rotor blades simultaneously regardless of the blades position?
 Definition
The collective stick applies input to all blades simultaneously.
Term
An upward movement of the collective control increases the pitch angle in each main rotor blade thereby increasing the ______ of the main rotor disc.
 Definition
Lift/thrust
Term
In a conventional helicopter, the rotation of the main rotor induces a force known as torque. Describe the effect that this force has on the helicopter fuselage.
 Definition
The torque force will cause the fuselage of the aircraft to rotate in the opposite direction of the main rotor rotation.
Term
State the primary purpose of the tail rotor system in a conventional helicopter.
 Definition
To counteract the torque effect of the main rotor.
Term
The ______ controls will provide directional control (heading) of the aircraft during hovering operations, as well as trimming the fuselage of the helicopter at higher speeds.
 Definition
Tail rotor.
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