飛行課程 Stage 1 - Safety of Flight

Content
Collision Avoidance
Right-of-Way Rules
Minimum Safe Altitudes
Controlled Flight into Terrain
Taxiing in Wind

1. Collision Avoidance
i.?Visual Scanning
Scan Patterns: A consistant habit of looking outside the cockpit coult avert most mid-air collision
When scanning for traffic, divide your windshield into 10 degree segments, and then methodically focus on each segment for at least one second
Start at the far left of the windshield and make a methodical sweep to the right, pausing in each block of your windshield to focus your eyes
Be sure that the scan pattern you use covers all of the sky that you can see from the cockpit, both horizontally and vertically, with particular emphasis on the area 60 degrees to the left and right of the center visual area and 10 degrees up and down from your flight path
Scan Limitations:
Reduced detail in peripheral vision
Absence of relative motion
Refocusing time
Reduced visibility
Background contrast
Empty field myopia

ii. Blind Spots

Aircraft Blind Spots:
To reduce the possibility of a collision due to blind spots:
Prior to beginning a turn in a high-wing airplane, lift the wing and look in the direction of the turn to check the area for other aircraft
During extended climbs or descents, make shallow S-turns and avoid climbing or descending at steep angles

iii. Aircraft Lighting

Aircraft operated at night must meet specific lighting and equipment requirements:
Position Lights:?

Green light on the right wingtip
Red light on the left wingtip
White light on tail
Anticollision Lights
On whenever the engine is running
Red or white flashing
Found on wingtips or tail
Can be extinguished when they might interfere with safety
Operation Lights on:
To increase safety at airports, the FAA has established a voluntary program called Operation Lights On, which encourages you to use your landing lights during departures and approaches, both day and night, especially when operating within 10 miles of an airport or in conditions of reduced visibility

iii. Clearning Turns
Clearing Turns: Enable you to see areas blocked by blind spots and make it easier to maintain visual contact with other aircraft in the area
To clear the area:
Perform two 90-degree turns
Perform one 180-degree turn, followed by an entry to the practice maneuver as soon as possible

2. Right-of-Way Rules

When another aircraft has the right of way:
Give way to that aircraft
Do not pass over, under, or ahead of aircraft unless your flight path is well clear of the other aircraft
Aircraft in Distress:?
An aircraft in distress has the right of way over all other aircraft
Converging Aircraft of the Same Category
Overtaking
Approaching Head-On
Converging
Converging Aircraft of Different Types
The least maneuverable aircraft usually has the right of way over all other traffic
Balloon
Glider
Aircraft Refueling
Airship
Airplane
Landing Aircraft
An aircraft on final approach or landing has the right of way over aircraft in the traffic pattern and on the ground
When two or more aircraft, each of which are preparing to land, enter the traffic pattern at the same time, the aircraft at the lowest altitude has the right of way

3. Minimum Safe Altitudes

Congested Area
Fly at least 1,000 feet above any obstacle within 2,000 feet of your aircraft
Uncongested Area
Fly at least 500 feet above the surface
Sparsely Populated Area
Stay more than 500 feet from any person, vessel, vehicle, or structure
Any Terrain
The lowest altitude at which you can fly over any terrain is one that permits you to make an emergency landing without posing an undue hazard to persons or property on the surface

4. Controlled Flight Into Terrain (CFIT)
Causes of CFIT Accidents:
Loss of situational awareness
Operational and nonoperational cockpit distractions
Complacency
Lack of technical or operational experience
Lack of adequate preparation
Confusion
CFIT Risks During Takeoff and Climb
Causes:
Incomplete or inadequate review of the departure
Terrain around the departure airport
Aircraft performance
Density altitude
Turbulence
Distractions in the cockpit during the departure
Failure to plan for an unexpected return to the departure airport
Intervention Strategies:
Review the departure route, with particular attention to terrain surrounding the airport
Carefully review aircraft performance limitations at the reported density altitude to ensure that your aircraft can clear terrain safely
Review weather reports to identify potential areas of turbulence that could affect your flight
Preset all communication frequencies, navigation frequencies, and course selectors, if needed
Review what you would do if you had to return to the airport unexpectedly
CFIT Risks During Cruise
Causes:
Misreading or misinterpreting safe altitudes
Losing situational awareness and becoming disoriented
Flying into deteriorating weather conditioins, requiring a descent ot maintain VFR below the cloud layer
Overestimating aircraft performance capabilities
Unplanned diversion to a different destination, resulting in flight over unfamiliar terrain
Intervention Strategies:
Review aeronautical charts to determine the maximum elevation of terrain and obstructions for the proposed flight
Maintain situational awareness by monitoring the charted terrain depiction
Immediately make 180-degree return to VFR conditions
When flying in mountainous terrain, plan carefully with regard to the climb capability of your aircraft in the applicable density altitude, and be aware of strong winds and turbulence that could affect your maneuverability
Devise an "escape route" in the event that you cannot complete your flight as planned
CFIT Risks During Descent, Approach, and Landing
Causes:
Improperly planning the descent and approach
Responding to distractions in the cockpit?
Neglecting to plan for a go-around
Intervention Strategies:
Review the terrain features near the airport and plan a safe descent and approach using appropriate approach speeds and rates of descent
Prior to beginning your approach, preset communication and navigation frequencies. Early in your approach, establish the aircraft configuration, including airspeed and gear and flap positions
Review what to do in the event of a go-aounrd

5. Taxiing in Wind

i. Taxiing a Tricycle-Gear Aircraft in the Wind
Left Quartering Headwind
Up aileron on left wing
Neutral elevator
Left Quartering Tailwind
Down aileron on left wing
Down elevator
Right Quatering Headwind
Up aileron on right wing
Neutral elevator
Right Quatering Tailwind
Down aileron on right wing
Down elevator
ii. Taxiing a Tailwheel Aircraft in the Wind
Position the ailerons the same as you do for a tricycle-gear aircraft
In a tailwind, hole the elevator control forward (elevator down)?
In a headwind, hold the elevator control aft (elevator up) to help keep the tailwheel on the ground