Systems - introduction Flashcards
The UH-60M civilian model designation:
Sikorsky, S-70
UH-60M engines:
- 2 General Electric model T700-GE-701D series turbo shaft engines
- Approx. 2000hp each
The main rotor is _______ (Rigid/Semi Rigid/Fully Articulated)
Fully Articulated
Can you retract the landing gear?
No
The three parts the console is divided into:
(1) Overhead console
(2) Center Instrument Panel
(3) Lower Console
What is the Minimum Crew Requirements?
Minimum: Pilot and copilot: additional crewmembers, as required, will be added at the discretion of the commander, in accordance with pertinent Department of the Army regulations.
What is the normal Crew Requirements?
- Pilot right side of cockpit.
- Copilot left side of cockpit.
- Crew chief right forward side of cabin.
- Gunner left forward side of cabin
What is the primary mission of the UH-60m
Primary missions of this helicopter are tactical transport of troops, medical evacuation and cargo transport.
Basic weight:
Approx. 13.000 lbs
Design weight:
16.825 lbs
Max gross weight:
22.000
Rotor Diameter:
53 feet 8 inches
Rotor clearance Turning:
9 feet 5 inches
Rotor clearance Sloping:
7 feet 7 inches
WARNING: Main rotor clearance is shown with cyclic _____ and _____. Cyclic _____ or _____ may cause rotor blade clearance to be significantly less
WARNING: Main rotor clearance is shown with cyclic centered and level ground. Cyclic displacement or sloping terrain may cause rotor blade clearance to be significantly less
Tail rotor is canted at _____ degrees to improve performance and increase lift capability. The _____ degree cant provides approximately _____ of the total lifting force for the aircraft.
Tail rotor is canted at 20 degrees to improve performance and increase lift capability. The 20 degree cant provides approximately 2.5% of the total lifting force for the aircraft.
Stabilator width:
14 feet 4 inches
When ground taxing, the UH-60 requires _____ feet _____ inches of tail rotor clearance for a 180 degree turn
When ground taxing, the UH-60 requires 41 feet 7.7 inches of tail rotor clearance for a 180 degree turn
Fuel Load consists of
Two interchangeable, crashworthy, ballistic-resistant fuel tanks are mounted on each side of the transition section.
Main tank usable fuel is _____ U.S. gallons, _____ per tank when gravity refueled, providing approximately _____ hours of flight time
Main tank usable fuel is 360 U.S. gallons, 180 per tank when gravity refueled, providing approximately 2.3 hours of flight time
The primary structure is _____ . Some _____ and _____ are used for firewalls and various fittings.
The primary structure is aluminum alloy. Some titanium and steel are used for firewalls and various fittings.
Aluminum paneling is used for added E3 protection. Where aluminum paneling couldn’t be used, _____ was used ?
Alluminum Mesh
Where does the Pre-Flight checks begin?
At the front of the helicopter
CAUTION: Do not deflect main rotor blade tips more than _____ below normal droop position when attaching tiedowns. Do not tie down below normal droop position.
CAUTION: Do not deflect main rotor blade tips more than 6 inches below normal droop position when attaching tiedowns. Do not tie down below normal droop position.
The rotor blade is designed with a _____ degree static twist, and the blade tip has a _____ degree sweep
The blade tip also has a _____ degree anhedral angle
The UH-60M is equipped with a wide chord (_____ inch) rotor blade with a _____ foot _____ inch span.
The rotor blade is designed with a 16.3 degree static twist, and the blade tip has a 30 degree sweep
The blade tip also has a 20 degree anhedral angle
The UH-60M is equipped with a wide chord (24.25 inch) rotor blade with a 24 foot 4 inch span.
In the front avionics compartment you’ll find
- Two aircraft Sealed Lead Acid Batteries (SLAB)
- Two Embedded Global Positioning/Inertial Navigation systems (EGIs)
- The #2 Flight Control Computer (FCC).
- Electric Standby Instrument System (ESIS) battery. PUSH TO TEST button
If use is required, the landing light must be extended prior to reaching a maximum forward airspeed of _____ KIAS. With landing light extended, airspeed is limited to _____ KIAS.
If use is required, the landing light must be extended prior to reaching a maximum forward airspeed of 130 KIAS. With landing light extended, airspeed is limited to 180 KIAS.
The Landing light is located on the _____ side under the helicopter.
The Search light is located on the _____ side under the helicopter
Left , Right
The search light has capability of turning ____ degrees
The search light has capability of turning 360 degrees
If use is required, the searchlight must be extended prior to reaching a maximum forward airspeed of _____ KIAS. With searchlight extended, airspeed is limited to _____ KIAS.
If use is required, the searchlight must be extended prior to reaching a maximum forward airspeed of 100 KIAS. With searchlight extended, airspeed is limited to 180 KIAS.
CAUTION: Landing and searchlight have less than _____ ground clearance when extended. Use caution when ground taxiing over rough terrain with landing light and/or searchlight extended.
CAUTION: Landing and searchlight have less than one-foot ground clearance when extended. Use caution when ground taxiing over rough terrain with landing light and/or searchlight extended.
The Radar altimeter antennas are located where?
Under the nose, left and right side
Which flight control computer is located in the nose compartment?
2 FCC
How much ground clearance does the landing and searchlights have when extended?
Less than one-foot
Pilot seats are ballistic tolerant up to _____ mm ordinance and are energy absorbing
Pilot seats are ballistic tolerant up to 7.62 mm ordinance and are energy absorbing
The main landing gear consists off:
Consist of a main strut, drag beam and wheel assembly
Drag beams are designed to absorb up a landing up to _____ feet per-second, about _____Gs.
Drag beams are designed to absorb up a landing up to 39 feet per-second, about 11.25 Gs.
Ambient Sense Port senses:
Air temperature to control the engine inlet anti-ice modulating valve.
If flights of over 6 hours are made, engine oil level must be at the _____ line of sight glass before flight
If flights of over 6 hours are made, engine oil level must be at the full line of sight glass before flight
The cowling/work platform is capable of supporting a weight of _____ pounds.
The cowling/work platform is capable of supporting a weight of 250 pounds.
There are three hydraulic pressure supply systems: _____, _____, and _____
All are completely independent and each is fully capable of providing essential flight control pressure for maximum system redundancy.
There are three hydraulic pressure supply systems: No. 1, No. 2, and backup
Each hydraulic pump has two temperature sensitive labels mounted on the side. When a temperature level is reached, a circle turns _____
When the tempilabel indicates that a temperature of _____°C (_____°F) has been exceeded, an entry shall be made on DA Form 2408-13-1.
Each hydraulic pump has two temperature sensitive labels mounted on the side. When a temperature level is reached, a circle turns Black
When the tempilabel indicates that a temperature of 132°C (270°F) has been exceeded, an entry shall be made on DA Form 2408-13-1.
The APU provides _____ power for engine start, _____heating, and _____ power for ground operations and in-flight emergency _____ power
The APU provides pneumatic power for engine start, cabin heating, and electrical power for ground operations and in-flight emergency electrical power
If the APU is hot to the touch, check the _____ side of the dip stick.
If the APU is cold to the touch, check the _____ side of the dip stick.
If the APU is hot to the touch, check the hot side of the dip stick.
If the APU is cold to the touch, check the cold side of the dip stick.
The rotor brake system is designed to hold the main and tail rotor system during engine starting, with both engines at IDLE and to stop the rotors in approximately _____-_____ seconds with _____-_____ psi applied at less than _____% NR during engine shutdown.
The rotor brake system is designed to hold the main and tail rotor system during engine starting, with both engines at IDLE and to stop the rotors in approximately 12-18 seconds with 150-180 psi applied at less than 40% NR during engine shutdown.
Rotor brake shall not be applied with engine(s) operating and rotor turning except during an _____ stop. Maximum rotor speed for emergency rotor brake applications is _____% NR.
Rotor brake shall not be applied with engine(s) operating and rotor turning except during an emergency stop. Maximum rotor speed for emergency rotor brake applications is 76% NR.
Main Transmission does what?
- Mounts and powers the main rotor head.
- Powers the tail rotor drive shaft.
- Drives the accessory modules.
The main transmission has a built-in _____° forward tilt to provide for a level attitude in cruise flight.
The main transmission has a built-in 3° forward tilt to provide for a level attitude in cruise flight.
One accessory module is mounted on the forward section of each input module, and is identical and directly interchangeable
Each accessory module provides mounting and drive for an _____ and a _____
One accessory module is mounted on the forward section of each input module, and is identical and directly interchangeable
Each accessory module provides mounting and drive for an electrical generator and a hydraulic pump
Use appropriate scale when checking oil level.
Read hot side of dipstick when checking hot oil (immediately to _____ hour after shutdown), or cold side of dipstick when checking cold oil (at least _____ hours after shutdown).
Use appropriate scale when checking oil level.
Read hot side of dipstick when checking hot oil (immediately to 1⁄2 hour after shutdown), or cold side of dipstick when checking cold oil (at least 2 hours after shutdown).
Regarding the blade dampers what should you look for?
The Gold coating
APU Hydraulic Accumulator consists of an accumulator and gage assembly Gage should read _____ PSI for APU starting
APU Hydraulic Accumulator consists of an accumulator and gage assembly Gage should read 2800 PSI for APU starting
WARNING: Operating an engine against the _____ is prohibited on rotor brake equipped helicopters.
WARNING: Operating an engine against the gust lock is prohibited on rotor brake equipped helicopters.
The cargo hook is used to carry external loads up to _____ lbs
9000 lbs
The deck load limit is _____ pounds per square foot
300
Floor tie down points rated for _____ lbs.
5000 lbs
Maximum capacity for the Equipment Stowage Compartments is:
125 pounds each side
The tail wheel shock strut functions like the main landing gear struts and is designed to absorb up to _____ Gs of energy on impact
The tail wheel shock strut functions like the main landing gear struts and is designed to absorb up to 11.5 Gs of energy on impact
What changes the direction, transmits torque and reduces shaft speed from the main gear box to the tail rotor gear box?
The intermediate gear box
The tail wheel swivels ____ degrees on a yoke assembly when unlocked.
360 deg
The bottom trailing edge of the tail pylon has an aerodynamically shaped fairing, with a _____ degree camber to decrease the amount of tail rotor pitch/anti-torque required in forward flight.
The bottom trailing edge of the tail pylon has an aerodynamically shaped fairing, with a 7 degree camber to decrease the amount of tail rotor pitch/anti-torque required in forward flight.
The helicopter has a variable angle of incidence stabilator to enhance _____ qualities.
The helicopter has a variable angle of incidence stabilator to enhance handling qualities.
Where is the #1 flight control computer located?
Aft avionics compartment.
The VLEAs may be manually adjusted for occupants ranging in weight from _____ to _____ pounds optimizing the occupant’s protection.
The VLEAs may be manually adjusted for occupants ranging in weight from 130 to 250 pounds optimizing the occupant’s protection.
WARNING: Do not store any items _____. Seats are designed to stroke downward during a crash. Any obstruction will increase the probability and severity of injury.
WARNING: Do not store any items below seats. Seats are designed to stroke downward during a crash. Any obstruction will increase the probability and severity of injury.
