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Author Topic: FLIGHT SAFETY PRACTICES  (Read 980 times)
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comanche82
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« on: April 21, 2008, 10:52:32 PM »

FLIGHT SAFETY PRACTICES
In the interest of safety and good habit pattern formation,
there are certain basic flight safety practices and
procedures that must be emphasized by the flight
instructor, and adhered to by both instructor and student,
beginning with the very first dual instruction flight.
These include, but are not limited to, collision
avoidance procedures including proper scanning
techniques and clearing procedures, runway incursion
avoidance, stall awareness, positive transfer of
controls, and cockpit workload management.

COLLISION AVOIDANCE
All pilots must be alert to the potential for midair
collision and near midair collisions. The general operating
and flight rules in 14 CFR part 91 set forth the
concept of “See and Avoid.” This concept requires
that vigilance shall be maintained at all times, by
each person operating an aircraft regardless of
whether the operation is conducted under instrument flight rules (IFR) or visual flight rules (VFR). Pilots
should also keep in mind their responsibility for continuously
maintaining a vigilant lookout regardless of
the type of aircraft being flown and the purpose of the
flight. Most midair collision accidents and reported
near midair collision incidents occur in good VFR
weather conditions and during the hours of daylight.
Most of these accident/incidents occur within 5 miles
of an airport and/or near navigation aids.
The “See and Avoid” concept relies on knowledge
of the limitations of the human eye, and the use of
proper visual scanning techniques to help compensate
for these limitations. The importance of, and
the proper techniques for, visual scanning should
be taught to a student pilot at the very beginning of
flight training. The competent flight instructor
should be familiar with the visual scanning and
collision avoidance information contained in
Advisory Circular (AC) 90-48, Pilots’ Role in
Collision Avoidance, and the Aeronautical
Information Manual (AIM).
There are many different types of clearing procedures.
Most are centered around the use of clearing turns. The
essential idea of the clearing turn is to be certain that
the next maneuver is not going to proceed into another
airplane’s flightpath. Some pilot training programs
have hard and fast rules, such as requiring two 90°
turns in opposite directions before executing any
training maneuver. Other types of clearing procedures
may be developed by individual flight instructors.
Whatever the preferred method, the flight instructor
should teach the beginning student an effective clearing
procedure and insist on its use. The student pilot
should execute the appropriate clearing procedure
before all turns and before executing any training
maneuver. Proper clearing procedures, combined
with proper visual scanning techniques, are the most
effective strategy for collision avoidance.

RUNWAY INCURSION AVOIDANCE
A runway incursion is any occurrence at an airport
involving an aircraft, vehicle, person, or object on the
ground that creates a collision hazard or results in a
loss of separation with an aircraft taking off, landing,
or intending to land. The three major areas contributing
to runway incursions are:
• Communications,
• Airport knowledge, and
• Cockpit procedures for maintaining orientation.
Taxi operations require constant vigilance by the entire
flight crew, not just the pilot taxiing the airplane. This
is especially true during flight training operations.
Both the student pilot and the flight instructor need to
be continually aware of the movement and location of

other aircraft and ground vehicles on the airport
movement area. Many flight training activities are
conducted at non-tower controlled airports. The
absence of an operating airport control tower creates a
need for increased vigilance on the part of pilots operating
at those airports.
Planning, clear communications, and enhanced
situational awareness during airport surface
operations will reduce the potential for surface incidents.
Safe aircraft operations can be accomplished
and incidents eliminated if the pilot is properly trained
early on and, throughout his/her flying career,
accomplishes standard taxi operating procedures and
practices. This requires the development of the
formalized teaching of safe operating practices during
taxi operations. The flight instructor is the key to this
teaching. The flight instructor should instill in the
student an awareness of the potential for runway
incursion, and should emphasize the runway
incursion avoidance procedures contained in
Advisory Circular (AC) 91-73, Part 91 Pilot and
Flightcrew Procedures During Taxi Operations and
Part 135 Single-Pilot Operations.

STALL AWARENESS
14 CFR part 61 requires that a student pilot receive and
log flight training in stalls and stall recoveries prior to
solo flight. During this training, the flight instructor
should emphasize that the direct cause of every stall is
an excessive angle of attack. The student pilot should
fully understand that there are any number of flight
maneuvers which may produce an increase in the
wing’s angle of attack, but the stall does not occur until
the angle of attack becomes excessive. This “critical”
angle of attack varies from 16 to 20° depending on the
airplane design.
The flight instructor must emphasize that low speed is
not necessary to produce a stall. The wing can be
brought to an excessive angle of attack at any speed.
High pitch attitude is not an absolute indication of
proximity to a stall. Some airplanes are capable of vertical
flight with a corresponding low angle of attack.
Most airplanes are quite capable of stalling at a level or
near level pitch attitude.
The key to stall awareness is the pilot’s ability to
visualize the wing’s angle of attack in any particular
circumstance, and thereby be able to estimate his/her
margin of safety above stall. This is a learned skill
that must be acquired early in flight training and
carried through the pilot’s entire flying career. The
pilot must understand and appreciate factors such as
airspeed, pitch attitude, load factor, relative wind,
power setting, and aircraft configuration in order to
develop a reasonably accurate mental picture of the
wing’s angle of attack at any particular time. It is
essential to flight safety that a pilot take into consideration
this visualization of the wing’s angle of
attack prior to entering any flight maneuver.

USE OF CHECKLISTS
Checklists have been the foundation of pilot standardization
and cockpit safety for years. The checklist is an
aid to the memory and helps to ensure that critical
items necessary for the safe operation of aircraft are
not overlooked or forgotten. However, checklists are
of no value if the pilot is not committed to its use.
Without discipline and dedication to using the checklist
at the appropriate times, the odds are on the side of
error. Pilots who fail to take the checklist seriously
become complacent and the only thing they can rely
on is memory.
The importance of consistent use of checklists cannot
be overstated in pilot training. A major objective in
primary flight training is to establish habit patterns that
will serve pilots well throughout their entire flying
career. The flight instructor must promote a positive
attitude toward the use of checklists, and the student
pilot must realize its importance. At a minimum, prepared
checklists should be used for the following
phases of flight.

• Preflight Inspection.
• Before Engine Start.
• Engine Starting.
• Before Taxiing.
• Before Takeoff.
• After Takeoff.
• Cruise.
• Descent.
• Before Landing.
• After Landing.
• Engine Shutdown and Securing.

POSITIVE TRANSFER OF CONTROLS
During flight training, there must always be a clear
understanding between the student and flight instructor
of who has control of the aircraft. Prior to any
dual training flight, a briefing should be conducted
that includes the procedure for the exchange of flight
controls. The following three-step process for the
exchange of flight controls is highly recommended.
When a flight instructor wishes the student to take
control of the aircraft, he/she should say to the student,
“You have the flight controls.” The student
should acknowledge immediately by saying, “I have
the flight controls.” The flight instructor confirms by
again saying, “You have the flight controls.” Part of
the procedure should be a visual check to ensure that
the other person actually has the flight controls. When
returning the controls to the flight instructor, the student
should follow the same procedure the instructor
used when giving control to the student. The student
should stay on the controls until the instructor says:
“I have the flight controls.” There should never be
any doubt as to who is flying the airplane at any one
time. Numerous accidents have occurred due to a lack
of communication or misunderstanding as to who
actually had control of the aircraft, particularly
between students and flight instructors. Establishing
the above procedure during initial training will ensure
the formation of a very beneficial habit pattern.
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