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PATHFINDER HLZ QUESTIONS AND ANSWERS
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PATHFINDER HLZ QUESTIONS AND ANSWERS
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PATHFINDER HLZ QUESTIONS AND ANSWERSWhat is the reference for Helicopter Landing Zones? - Answers -FM 3-99 Airborne and
Air Assault Operations
What are the consideration factors that contribute to the process of HLZ site selection? -
Answers -Tactical Considerations and Technical Considerations
Technical considerations are the responsibility of who? - Answers -The Pathfinder
What are the seven selection factors in reference to technical considerations? -
Answers -Size of HLP (OR TDP), Landing formations, surface conditions, obstacles,
approach and departure routes, atmospheric conditions, and type of load
What are the factors that are the basis for size of the HLP (TDP)? - Answers -(SNAP)
Size/type of A/C, Night or Day operations, Atmospheric Conditions, Pilot/unit proficiency
What is the diameter of the TDP for the OH-6, OH-58, MH-6, AH-6, and UH-72A? -
Answers -25 Meters (Army Skid A/C)
What is the diameter of the TDP for the AH-1W/Z, UH-1N/Y? - Answers -35 Meters
(Marine Corps Skid A/C)
What is the diameter of the TDP for the AH-64, UH-60A/LM, and SH-60? - Answers -50
Meters (All 60 series A/C)
What is the diameter of the TDP for all CH A/C to include the MV/CV-22B (OSPREY)? -
Answers -80 Meters (ALL CH A/C)
What are the nine standard A/C formations? - Answers -Trail, staggered trail left,
staggered trail right, echelon left, echelon right, heavy left, heavy right, diamond (MOST
SECURE ON THE GROUND), and vee
Which A/C formation is the most secure on the ground? - Answers -The diamond
How is the TDP distance measured? - Answers -From center to center of the TDPs
What is the distance between aircraft in flight during the day? - Answers -2 to 3 rotor
disks
What is the distance between aircraft in flight during night? - Answers -3 to 5 rotor disks
Which formation do you double the distance between the first and third A/C? - Answers
-Heavy left and heavy right
, True or false. You will always clear the area for the ghost ship (in heavy left or heavy
right) but you do not mark it? - Answers -True
What is the formula to determine the needed usable length and width of the HLS?
(TRIANGLE) - Answers -SIN(45)XDistance
What is needed usable length and for 4 CH A/C flying in trail formation? - Answers -240
Meters
What are the ideal surface conditions for a HLS? - Answers -Firm enough to support the
weight of the aircraft and free of loose sand, snow, or debris
What is a way to determine the firmness of the HLS surface? - Answers -Alabama boot
stomp, heel cannot sink more than 2 inches
What are the Four "R"s of obstacles near the site? (anything that is 18 inches high,
wide, or deep) - Answers -Remove, Reduce, Red (mark in red), Radio (advise pilot)
What is considered a surface obstacle in addition to the Four "R"s? - Answers -Ground
slope
True or false, It is okay to land an aircraft on a down-slope as long as you approach
from the appropriate side and from the low side. - Answers -False. NEVER land an
aircraft down-slope if at all possible
What is the ground slope that all A/C can land on and no advisory is required? -
Answers -7 degrees or less
What A/C MUST terminate at a hover when the slope exceeds 7 degrees? - Answers -
OH and UH A/C that utilize skids for landing
True or False. All UH and OH A/C that utilize wheels and skids MUST terminate at a
hover for landing when the slope is greater than 7 degrees. - Answers -False. Only UH
and OH with skids must terminate at a hover
What A/C are capable of landing on slopes between 7 and 15 degrees with an
advisory? - Answers -large UH and CH A/C
If the slope exceeds __________, all A/C must terminate at a hover. - Answers -15
degrees
What is the slope formula? - Answers -(difference in elevation/horizontal distance)X57.3
True or False. The slope formula is reasonably accurate for slope angles under 25
degrees. - Answers -False. Under 20 degrees
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