1
Q
Who is responsible for ensuring you meet your ATP requirements?
A
Individual aviator responsibility. The first colonel or above in the chain of command may grant individual waivers. If APART requirements are not met, the aviator will be restricted from PC duties.
2
Q
What are your currency requirements?
A
If 60 days have elapsed since last flight as pilot or pilot in command in aircraft, aviator will be administered a proficiency flight evaluation per ATM.
3
Q
What are your C-12 semiannual flying hour requirements?
A
- FAC 1 - 55 hours
- FAC 2 - 30 hours
- FAC 3 - 20 hours SFTS annually.
4
Q
What are your annual task iteration requirements?
A
- One iteration minimum:
- Base tasks (1000 series)
- Tasks with an X in the night column
- Tasks with an X in the instrument column
- NBC mandatory tasks (not required for FAC 2 aviators)
- Iterations per the Commander:
- Special tasks (2000 series)
- Additional tasks (3000 series)
5
Q
When does the APART apply?
A
Applies if designated RL 1 any time within the 3-month period ending on the last day of birth month.
6
Q
What are your APART requirements?
A
- Operator’s Manual open book written exam
- Standardization flight evaluation
- Instrument flight evaluation
7
Q
What are the requirements for each readiness level?
A
- RL 3: Qualification or refresher training currency & progression requirements.
- RL 2: Mission or additional task training currency & progression requirements.
- RL 1: Continuation training semiannual flying-hour, task, iteration, APART, & currency requirements.
8
Q
What are the airspace limits?
A
See Class A through G descriptions (detailed below).
9
Q
Which operations are permitted (VFR, IFR)?
A
Varies by airspace class (see below).
10
Q
What are the entry requirements (ATC clearance, radio contact)?
A
Varies by class (see below).
11
Q
What are the equipment requirements (2-way communications, etc.)?
A
Varies by class.
12
Q
What is the speed restriction?
A
Varies by class.
13
Q
What are the VFR weather requirements?
A
Varies by class.
14
Q
Class A Airspace
A
- Airspace of the US, including within 12 NM of the coast of the 48 states, from 18,000’ MSL to & including FL 600 (excluding <1,500’ AGL).
- IFR operations allowed only (unless ATC approved deviation).
- ATC clearance required prior to entering.
- Two-way radio, Mode C transponder required.
- No speed restrictions.
- VFR weather NA.
15
Q
Class B Airspace
A
- Areas around busiest airports from surface to 10,000’ MSL – upside-down wedding cake.
- IFR & VFR allowed.
- ATC clearance required prior to operating an aircraft within. Large turbine powered airplanes must operate at or above designated floor.
- Two-way radio and Mode C transponder required. For IFR an operable VOR or TACAN receiver.
- Max speed 250 KIAS below 10,000 MSL. Max 200 KIAS in airspace underlying Class B or in VFR corridors (122.750).
- VFR minima 3 SM visibility and clear of clouds.
16
Q
What is the Class B mode C veil?
A
Airspace within 30 NM of a primary Class B airport from surface up to 10,000’ MSL where aircraft must be equipped with Mode C.
17
Q
Class C Airspace
A
- From surface to 4,000’ above airport elevation (in MSL) surrounding airports with operational control tower, RADAR approach control, and traffic density.
- 5 NM core to 4,000’, 10 NM shelf 1,200–4,000’, 20 NM outer area.
- IFR & VFR allowed.
- ATC clearance prior to entry & constant listening watch.
- Two-way radio and Mode C transponder required.
- Max speed 250 KIAS below 10,000 MSL; 200 KIAS within 4 NM of primary airport at or below 2,500’ AGL.
- VFR minima 3 SM visibility, 500 below, 1,000 above, 2,000’ horizontal cloud clearance.
18
Q
Class D Airspace
A
- From surface to 2,500’ AGL (in MSL) surrounding airports with operational control tower.
- IFR & VFR allowed.
- ATC clearance to operate/enter & constant listening watch.
- Two-way radio required.
- 250 KIAS below 10,000 MSL; 200 KIAS within 4 NM of primary airport at or below 2,500’ AGL.
- 3 SM visibility, basic cloud clearance, 1,000’ ceiling for VFR flight.
19
Q
Class E Airspace
A
- Any controlled airspace not A, B, C, or D. From surface or designated altitude (700’ or 1,200’ AGL, or 14,500’ MSL) up to but not including 18,000’ MSL.
- IFR & VFR allowed.
- No ATC clearance required for VFR.
- No equipment requirements for VFR.
- 250 KIAS below 10,000’ MSL.
- VFR minima 3 SM visibility below 10,000’ MSL – 5 SM visibility 1,000’ above/below, 1 SM horizontal above 10,000’ MSL.
20
Q
Class G Airspace
A
- Uncontrolled airspace not designated A, B, C, D, or E.
- IFR & VFR allowed.
- Clearance not required for VFR.
- No equipment requirements for VFR.
- Max speed 250 KIAS below 10,000’ MSL.
- VFR minima: Below 10,000’ MSL – 3 SM & basic cloud clearance; above 10,000’ MSL – 5 SM visibility, 1,000’ above/below, 1 SM horizontal.
21
Q
Explain special use airspace.
A
Airspace where activities must be confined due to nature or limitations. Prohibited and Restricted Areas are regulatory (FAR Part 73). Warning Areas, MOAs, Alert Areas, NSAs, CFAs are non-regulatory.
22
Q
What are Prohibited Areas?
A
Contain airspace where flight of aircraft is prohibited; established for security or national welfare.
23
Q
What are Restricted Areas?
A
Contain airspace where flight is not wholly prohibited but subject to restrictions due to unusual, often invisible hazards (artillery, aerial gunnery, guided missiles).
24
Q
What are Warning Areas?
A
Extend 3 NM outward from US coast; may contain hazardous activity. Located over domestic or international airspace.
25
What are **MOAs**?
Separate military training activities from IFR traffic. Most require aerobatic or abrupt maneuvers. Military pilots in MOAs exempt from FARs prohibiting aerobatic flight. VFR pilots should contact FSS within 100 miles for operating hours.
26
What are **Alert Areas**?
Inform nonparticipating pilots of high volume of pilot training or unusual aerial activity. All activity IAW FARs.
27
What are **CFAs**?
Contain hazardous activities if not in controlled environment. CFA activities suspended when RADAR, ground lookouts, or spotter aircraft indicate approaching aircraft.
28
What is an **Airport Advisory Area**?
Within 10 SM of airport with FSS but no control tower. Non-mandatory; pilots strongly recommended to participate.
29
What is a **VFR flyway**? Is an ATC clearance required to operate in one?
Synonymous with VFR corridor or Class B VFR Transition route. Used to avoid Class B. ATC clearance NOT required.
30
ATC Light Gun Signals – On Ground
* Steady Green: Cleared for takeoff
* Flashing Green: Cleared for taxi
* Steady Red: STOP
* Flashing Red: Taxi clear of runway
* Flashing White: Return to starting point
* Alt. Red & Green: Exercise extreme caution
31
ATC Light Gun Signals – In Flight
* Steady Green: Cleared to land
* Flashing Green: Return for landing
* Steady Red: Give way, continue circling
* Flashing Red: Airport unsafe – do not land
* N/A: Flashing White
* Alt. Red & Green: Exercise extreme caution
32
What is the forecast weather requirement for a **VFR destination**?
Forecast must be ≥ VFR minimums at ETA through ETA +1. May file to destination in Class B, C, D, E surface area if special VFR minima forecast.
33
What are the **Fixed-Wing Special VFR minimums**?
1 SM visibility clear of clouds.
34
Do higher SVFR minimums apply when published in DOD FLIP?
Yes.
35
What is the **minimum safe altitude**?
* Anywhere: Altitude allowing emergency landing without undue hazard.
* Congested areas: 1,000' AHO within 2,000' horizontal radius.
* Other areas: 500' except over water or sparsely populated (cannot operate within 500' of any person, vessel, vehicle, or structure).
36
What is the appropriate **mode 3/A VFR transponder code**?
* Mode 3/A 1200
* 4000 when operating within Restricted Areas.
37
Where/when is a **Mode C transponder required**?
* At or above 10,000' MSL over 48 contiguous states excluding below 2,500' AGL.
* Within 30 miles of Class B primary airport below 10,000' MSL.
* Within and above all Class C airspace up to 10,000' MSL.
* Flying into or out of contiguous US ADIZ.
38
What are your **fixed-wing VFR fuel requirements** at day and night?
* Enough fuel to reach destination and alternate (if required) + planned reserve:
* Day: 30 minutes at cruise
* Night: 45 minutes at cruise
39
How often must you make **position reports** while VFR?
Hourly.
40
What is your correct **VFR traffic pattern altitude**?
1,500' above the surface of the airport for turbine powered airplanes except to maintain cloud clearance. Exceptions prescribed by FLIP or directed by ATC.
41
What is the forecast weather requirement for an **IFR destination**?
Forecast must be ≥ published weather planning minimums for approach to be flown at ETA through 1 hour after ETA. Intermittent conditions: predominant weather applies. Cat II not used in planning.
42
When is **alternate airfield planning required**?
If RADAR required to execute approach or instrument approach navaids unmonitored.
43
The predominant weather at destination is forecast at ETA through 1 hour after ETA to be less than:
* Ceiling - 400' above minimums for approach
* Visibility - 1 mile greater than minimums
44
An alternate is not required if descent from en-route minimum altitude for IFR operation, approach & landing can be made in **VFR conditions**.
True.
45
What are the requirements for **alternate airfield selection**?
* Worst weather forecast for ETA through 1 hour after ETA must be ≥ ceiling 400' above & visibility 1 mile greater than weather planning minimums OR VFR minima & descent from en-route MEA can be made in VFR.
46
If unable to meet, 'VFR minimums & descent from en-route minimum altitude for IFR operation can be made in VFR conditions,' what 4 items would prevent you from selecting an airfield as an alternate?
* Approach procedure A(NA) in FLIP
* Radar required to execute approach
* Instrument approach navaids unmonitored
* Class B, C, D, or E surface area airspace does not exist or is not in effect
* GPS required for approach
47
What are your **takeoff minimums**?
* Aviator with ≥50 hours actual weather as PIC: No takeoff minimums.
* Others: Ceiling 200', Visibility 1/2 mile, RVR 2400' or metric equivalent (800 meters).
* All comply with published non-standard IFR takeoff minimums and departure procedures in FLIP.
48
What is the **minimum altitude for IFR operations**?
* Mountainous areas: 2,000' above highest obstacle within 4 NM
* Other areas: 1,000' above highest obstacle within 4 NM
* If MEA and MOCA prescribed, may operate below MEA down to, but not below, MOCA within 22 NM of VOR.
49
Climb to a higher minimum IFR altitude shall begin immediately after passing the point beyond which that minimum altitude applies, except when ground obstructions intervene, the point beyond which that higher minimums altitude applies shall be crossed at or above the MCA.
True.
50
What is an **OROCA**?
Off-Route Clearance Altitude – provides 1,000' buffer in non-mountainous, 2,000' in mountainous terrain. May not provide signal or traffic control coverage.
51
When given a clearance to climb or descend while IFR, when and at what rate of climb or descent should the pilot use?
Unless 'Pilot’s Discretion,' initiate promptly on acknowledgment. Optimum rate consistent with aircraft characteristics to 1,000' above/below assigned altitude, then 500–1,500 FPM. If unable to maintain 500 FPM, advise ATC.
52
Decipher: Army 12345, descend now to FL 270, cross Savannah VOR at or below one zero thousand, descend and maintain six thousand.
* Descend immediately to FL 270
* Cross Savannah VOR at or below 10,000'
* After Savannah, descend to 6,000'
53
Are you restricted from initiating an approach when the weather is below weather planning minimums?
No – may initiate regardless of ceiling & visibility.
54
When may you continue an approach below the MDA or below the DH?
* Approach threshold, lights, or other markings identifiable with approach end of runway clearly visible
* Aircraft in position for safe approach to runway or landing area
55
What are your **two-way radio failure procedures** in the US, per the FAA?
* If flying VMC: Maintain VMC, land at nearest suitable airport, report to ATC ASAP.
* If unable to maintain VMC:
* Squawk 7600
* ROUTE: Last ATC clearance, or RADAR vectored by direct route to fix, route, or airway in vector clearance; in absence, route filed in flight plan.
* ALTITUDE: Highest of last assigned, MEA, or last told to expect.
* LEAVE CLEARANCE LIMIT: If fix is approach beginning, commence descent/approach as close to EFC or ETA. If not, leave at EFC if received or upon arrival if none.
* RADAR APPROACHES: Maintain last assigned altitude or safe sector altitude until established on published approach.
56
What restrictions are placed on flight into **icing conditions**?
* No flight into known or forecast severe icing.
* No flight into known or forecast moderate icing without adequate anti/de-icing.
57
What restrictions are placed on flight into **turbulence**?
* No intentional flight into known or forecast extreme turbulence.
* No intentional flight into known severe turbulence.
* Forecast severe turbulence:
58
What restrictions are placed on flight into **icing conditions**?
* No flight into known or forecast severe icing
* No flight into known or forecast moderate icing without adequate anti/de-icing
## Footnote
These restrictions are crucial for ensuring flight safety in adverse weather conditions.
59
What restrictions are placed on flight into **turbulence**?
* No intentional flight into known or forecast extreme turbulence
* No intentional flight into known severe turbulence
* Forecast severe turbulence: IAW AR 95-1
## Footnote
These guidelines help maintain safety during turbulent conditions.
60
What restriction is placed on flight into **thunderstorms**?
No intentional flight into thunderstorms
## Footnote
Thunderstorms can pose significant hazards to flight safety.
61
What is your **IFR fuel-planning requirement**?
* Enough fuel to reach destination and alternate (if required)
* + 45 minutes at cruise
## Footnote
This requirement ensures adequate fuel reserves for safe flight operations.
62
What are your minimum **survival equipment requirements** per AR 95-1?
* Each crew-member wears survival vest (waived for multi-engine)
* Each carries survival radio (min 2 for multi-engine with waiver)
* Aircraft carries individual survival kits
* Over-water beyond gliding distance: life preservers, life raft(s) for all, survival kits
## Footnote
These requirements are essential for crew safety in emergency situations.
63
What are your **clothing requirements** per AR 95-1?
* U.S. Army approved: leather boots
* flight helmet
* flight suit
* flight gloves
* cotton/wool/Nomex underwear
* ID tags
## Footnote
Major Army Commanders may waive requirements except ID tags.
64
What are the **PIC’s responsibilities** concerning weight & balance?
* Verify accuracy of DD 365-4S and completed 365-4 aboard
* Several 365-4S may be used if within limits for entire flight
* Actual loading verified clearly within extremes
## Footnote
Proper weight and balance management is critical for flight safety.
65
What are the **4 times** an aircraft must be weighed (red X if not met)?
* Overhaul & major airframe repairs
* Modifications or component replacement
* Records suspected in error
* 36 months for Class 1 (RC-12N); 24 months for Class 2 (C-12)
## Footnote
Regular weighing ensures compliance with safety standards.
66
How often will **weight & balance clearance forms** (DD 365-4) be reviewed?
Every 90 days
## Footnote
Must be changed if differs from DD 365-3 by 3/10 of 1% basic weight or 0.3 inch CG.
67
Define a **“Class 1” aircraft** for weight and balance purposes.
Weight or CG limits can sometimes be exceeded; limited loading control required
## Footnote
Class 1 aircraft have more flexibility in loading.
68
Define a **“Class 2” aircraft** for weight and balance purposes.
Limits can readily be exceeded; high amount of loading control required
## Footnote
Class 2 aircraft require stricter loading management.
69
Where can you obtain **flight planning information**?
* General Planning (GP): Chapters 4 & 5
* Area Planning (AP): Chapters 1 & 3 (theater & region), Chapter 3 (country & sample plans)
## Footnote
These chapters provide essential guidelines for effective flight planning.
70
Who is responsible for **closing flight plans**?
Pilot in command when flight terminates, as shown in DOD FLIP
## Footnote
This responsibility ensures proper documentation of flight operations.
71
What is the **void time** on weather briefings?
1 hour & 30 minutes after forecast received provided aircraft has not departed
## Footnote
This time frame is crucial for ensuring pilots have up-to-date weather information.
72
What is the definition of an **exogenous factor**?
Any substance or procedure likely to provoke adverse systemic reaction
## Footnote
Aircrew must inform flight surgeon of activities/treatments that may affect flight safety.
73
Is **self medication** allowed?
All drugs dispensed with flight surgeon knowledge
## Footnote
Local flight surgeon may authorize limited self-medication with OTC drugs without conflicting AR 40-8.
74
After **alcohol consumption**, aircrew members must wait how long before flying?
12 hours after last drink & no residual side effects
## Footnote
This rule is critical for maintaining flight safety.
75
After using **antihistamines**, aircrew members must wait how long before flying?
Period taken and 24 hours after discontinued
## Footnote
This waiting period helps prevent adverse effects on performance.
76
After **barbiturates**?
Period taken and 72 hours after discontinued
## Footnote
This guideline is important for ensuring aircrew readiness.
77
After **immunizations or low pressure chamber runs**?
12 hours
## Footnote
This waiting period is necessary to ensure safety before flying.
78
After **blood donation**?
72 hours
## Footnote
This guideline is crucial for ensuring the health of aircrew members.
79
After **scuba diving or low pressure chamber runs**?
24 hours
## Footnote
This waiting period helps prevent decompression sickness.
80
What is the definition of **fatigue**?
State following excessive mental/physical activity or inactivity
## Footnote
Characterized by decreased work capacity, tiredness, desire to rest.
81
What is **acute fatigue**?
Tiredness after 12–15 hours awake daily
## Footnote
Characterized by inattention, errors, loss of accuracy/control. Overcome with one adequate rest/sleep period.
82
What is **chronic fatigue**?
Occurs over longer period; associated with aviation assignments
## Footnote
Requires longer recovery. Symptoms include insomnia, depression, weight loss, poor judgment, slow reaction.
83
How do you limit the effects of **fatigue**?
* Maintain fitness
* Limit stress
* Regular leave
* Good sleep
* Flying skills
* Realistic crew endurance program
## Footnote
These strategies help mitigate fatigue in aircrew.
84
What is the definition of **hypoxia**?
Insufficient oxygen in body tissues
## Footnote
Understanding hypoxia is crucial for flight safety.
85
Describe the **4 major classifications of hypoxia**.
* HYPOXIC: Insufficient O₂ in air (altitude)
* HYPEMIC: Reduced O₂-carrying capacity (blood loss, CO, anemia)
* STAGNANT: Inadequate circulation (g-forces, heart failure)
* HISTOTOXIC: Interference with tissue O₂ use (alcohol)
## Footnote
Each classification has different causes and implications for aircrew.
86
Describe the effects of the **4 stages of hypoxia** and physiological altitudes.
* INDIFFERENT (0-10,000'): Loss of night vision >4,000'
* COMPENSATORY (10-15,000'): Circulation/respiration increase
* DISTURBANCE (15-20,000'): Serious impairment in mental/motor functions
* CRITICAL (20-25,000'): Incapacitation, death
## Footnote
Awareness of these stages is essential for preventing hypoxia-related incidents.
87
How do you **prevent hypoxia**?
* Limit time at altitude
* Use supplemental oxygen
* Stay physically fit
* Limit stress
## Footnote
These preventive measures are vital for aircrew safety.
88
How do you **treat hypoxia**?
* Descend immediately
* Go on oxygen
* Seek medical assistance
## Footnote
Prompt treatment is critical for recovery from hypoxia.
89
How does **alcohol and smoking** affect hypoxia?
* Smoking: 5,000' physiological altitude (CO)
* Alcohol: 1 oz = 2,000' (histotoxic)
## Footnote
Both substances significantly impair oxygen utilization.
90
In unpressurized aircraft, when is **oxygen required**?
* Crews >10,000' PA >1 hour
* Crews >12,000' PA >30 minutes
* Crew & occupants >14,000' any time
## Footnote
These requirements ensure adequate oxygen supply for safety.
91
In unpressurized aircraft, when is **pre-breathing required**?
Crews for flights >18,000' – pre-breathe ≥30 min at ground level & en-route
## Footnote
This practice helps prevent decompression sickness.
92
In pressurized aircraft, what is the **maximum allowable cabin pressure**?
10,000'
## Footnote
Maintaining cabin pressure within limits is essential for passenger safety.
93
In pressurized aircraft, what is the **oxygen requirement** for each occupant?
Minimum 10-minute emergency supply above 14,000' PA when terrain/weather prevent descent to 10,000' in loss of cabin pressure
## Footnote
This requirement ensures safety in case of cabin pressure loss.
94
In pressurized aircraft, if **pressure is lost**, what action is required?
Above 14,000' PA, descend immediately to cabin pressure altitude of 10,000' PA or below
## Footnote
Quick action is necessary to ensure safety.
95
What is the definition of **carbon monoxide**?
Colorless, odorless gas lighter than air from incomplete combustion (smoking, heater)
## Footnote
Suspect carbon monoxide exposure when exhaust fumes are present.
96
Why does carbon monoxide cause **hypemic hypoxia**?
256 times greater affinity for red blood cells than oxygen; displaces oxygen
## Footnote
Understanding this mechanism is crucial for recognizing carbon monoxide poisoning.
97
What are the **symptoms of carbon monoxide poisoning**?
* Tremors
* Headache
* Joint pain
* Cramps
## Footnote
These symptoms are indicative of hypoxia and require immediate attention.
98
How is **carbon monoxide poisoning treated**?
(Not specified in guide – treat as hypoxia: 100% oxygen, descend, medical attention)
## Footnote
Immediate treatment is essential for recovery.
99
100
What causes **ground effect**?
* Ground interruption of vortices & down-wash (induced flow)
* Compression of air below the wings (limited effect)
## Footnote
Ground effect enhances lift and reduces drag when an aircraft is close to the ground.
101
Which direction does the fuselage tend to rotate as a result of **torque reaction**?
The fuselage tends to rotate in the opposite direction as propeller rotation (Newton's 3rd Law)
## Footnote
This is a fundamental principle of flight dynamics.
102
When does **P-factor** cause a yaw and what causes it?
* When the aircraft is at a high angle of attack, the aircraft nose is pushed left by P-factor
* The downward blade (right side) has a greater angle of attack and relative wind velocity than the upward blade (left side)
* The right side produces more thrust than the left side which creates a left yawing moment
* Most pronounced at slow flight
## Footnote
P-factor is a result of the asymmetrical thrust produced by the propeller.
103
What is the **critical engine** and why does P-factor cause this?
* Either engine failing creates a large yawing moment because the remaining propeller thrust is not near the aircraft center-line
* A left engine failure (critical engine) creates the largest yawing moment
* Because of P-factor, the right propeller thrust is the furthest away from the aircraft center-line
## Footnote
Understanding critical engine failure is crucial for multi-engine aircraft operations.
104
What causes the **slipstream effect** and in which direction does it cause a yaw?
* Clockwise rotation of the propeller induces a clockwise airflow about the fuselage
* This airflow will strike the vertical stabilizer & aft fuselage on the left side, causing a left yaw
## Footnote
The slipstream effect is significant during flight maneuvers.
105
When will a **spin** occur?
* A spin will occur when one wing is more fully stalled than the other
* Spins can occur in turns, stalls, slow flight, & below Vmc
* In order to spin you need a stall, yaw, and wing drop
## Footnote
Understanding spins is essential for safe flight training.
106
What is the basic technique for **spin recovery**?
* SPIN RECOVERY – POWER: Reduce power
* SPIN RECOVERY – RUDDER: Apply full opposite rudder
* SPIN RECOVERY – ELEVATOR: Positive forward elevator movement to break the stall
## Footnote
Proper spin recovery techniques are critical for pilot safety.
107
What is the definition of **fratricide**?
The destruction of friendly personnel and/or equipment by friendly weapons systems
## Footnote
Understanding fratricide is crucial for military operations and safety.
108
What are a few of the **causal factors of fratricide**?
* Poor land navigation
* Loss of communications
* Position reporting errors
* Incorrect target identification
* Incomplete planning and coordination
## Footnote
Awareness of these factors can help mitigate risks in combat situations.
109
How have modern weapon systems increased the likelihood of **fratricide**?
The emergence of weapons that permit engagement of targets at extended distances and the increasing use of allied equipment by hostile nations
## Footnote
This highlights the importance of clear identification and communication in military operations.
110
What can you do to **prevent fratricide**?
* Threat vehicle identification training
* Identification of previous shortcomings of causal factors (lessons learned)
* IFF operation training
## Footnote
Implementing these measures can significantly reduce the risk of fratricide.
111
Is a **flashlight** required for night flight? What color lens do you filter your flashlight with?
* A flashlight is required to be serviceable & readily accessible for night flight
* Use an unfiltered lens for pre-flight
* In the aircraft, red filtered lenses protect night vision
## Footnote
Proper lighting is essential for safe night operations.
112
What conditions require use of the **landing light**?
* On for take-off unless conditions will cause glare
* Left on if lighting system is not attached to gear until traffic pattern altitude
* On for landings
* During taxiing, avoid shining the landing/taxi lights in other aircraft cockpits
## Footnote
Proper use of landing lights enhances safety during night operations.
113
What are the characteristics of **photopic vision**?
* High light levels
* Central vision (cones)
* Good color perception
* Excellent acuity
* Day (physiological) blind spot
## Footnote
Understanding different types of vision is important for pilots, especially during varying light conditions.
114
What is **dark adaptation**?
The process by which the eyes increase their sensitivity to low light levels
## Footnote
This process is crucial for pilots flying at night or in low-light conditions.
115
What is the **biochemical process** that is true dark adaptation?
The rod cells become bathed in rhodopsin (visual purple) and become active
## Footnote
This process allows for improved vision in low-light environments.
116
What is **autokinesis**?
A static light or object viewed on a featureless background will appear to move after a period of 6-12 seconds
## Footnote
This phenomenon can lead to dangerous misjudgments during flight.
117
What is the **height perception illusion**?
When over terrain or water with limited contrast, perceived height is greater than actual
## Footnote
This illusion can affect altitude judgment during flight.
118
What is the **size-distance illusion**?
Night specific; light source increases or decreases in brightness, perceive it is approaching or retreating
## Footnote
This can lead to misjudgments in distance during night operations.
General APART Study
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