Page 21
Pilot’s Operating Manual
Revision A1: Nov, 2002
Hawker 800XP Pro Line 21
Section VII - SAFETY INFORMATION
However, sudden engine failures rarely occur with all factors listed above, and therefore, the actual
V
MCA
under any particular situation may be a little slower than listed in the LIMITATIONS section of the
AFM. Most airplanes will not maintain level flight at speeds at or near V
MCA
.
Consequently, it is not advisable to fly at speeds approaching V
MCA
. Adhering to the practice of never
flying at or below the published V
MCA
speed for your airplane will virtually eliminate loss of directional
control as a problem in the event of an engine failure.
Basic Single Engine Procedures
Know and follow, to the letter, the single-engine emergency procedures specified in the FAA Approved
Airplane Flight Manual for your airplane. However, the basic fundamentals of all the procedures are as
follows:
1. Maintain airplane control and a safe airspeed at all times.
THIS IS CARDINAL RULE NUMBER ONE.
2. Secure the failed engine and related sub-systems.
The checklist should be used to make sure the inoperative engine is secured properly and that the
appropriate switches are placed in the correct position.
WARNING:
BE SURE TO POSITIVELY IDENTIFY THE INOPERATIVE ("DEAD") ENGINE
BEFORE SECURING IT. REMEMBER: FIRST, IDENTIFY THE SUSPECTED
ENGINE (I.E., "DEAD FOOT MEANS DEAD ENGINE") SECOND, VERIFY WITH
CAUTIOUS THRUST LEVER MOVEMENT, THEN SECURE.
Engine Failure During Takeoff
If an engine fails before attaining V
1
, the only proper action is to discontinue the takeoff.
Stalls, Slow Flight and Training
The stall warning system must be kept operational at all times and must not be deactivated by
interruption of circuits, circuit breakers, or fuses. Compliance with this requirement is especially
important in all high performance multi-engine airplanes during engine-out practice or stall
demonstrations, because the stall speed is critical in all low speed operations of high-performance
airplanes.
The single-engine stall speed of a twin-engine airplane is generally slightly below the power off (engines
idle) stall speed, for a given weight condition. Single-engine stalls in multi-engine airplanes are not
recommended and should not be conducted by other than qualified engineering test pilots.
V
MCA
demonstrations should not be attempted when the altitude and temperature are such that the
engine-out minimum control speed is known, or discovered to be, close to the stalling speed. Loss of
directional or lateral control, just as a stall occurs, is potentially hazardous.
Spins
A major cause of fatal accidents in general aviation airplanes is a spin. Stall demonstrations and
practice are a means for a pilot to acquire the skills to recognize when a stall is about to occur and to
recover as soon as the first signs of a stall are evident. If a stall does not occur - A spin cannot occur.
It is important to remember however, that a stall can occur in any flight attitude, at any airspeed, if
controls are misused.
