Pilot’s Operating Manual
P/N 140-590032-0007
Revision A4: Sep, 2010
Page 1-5
Section V Sub-section 1
NORMAL HANDLING
Slippery Runway
A slippery runway is one which is either covered by compacted snow or is expected to have very low
braking action due to the presence of wet ice. The coefficient of friction is:
μ =
0.05
NOTE:
A runway referred to as slippery, under these conditions, is extremely more slippery than a
wet runway.
Compacted snow is snow which has been compressed into a solid mass which resists further
compression and will hold together or break into lumps if picked up.
Operation On Unpaved Surfaces
Paved runways are those having a prepared hard surface such as concrete or tarmac.
Unpaved runways are those categorized into natural, grass, and gravel runways.
Takeoff from an unpaved runway with an uphill slope of more than 1.0% is not permitted.
Before operating on unpaved surfaces, the airplane should have the rough field modifications installed.
These modifications give protection to the flaps and the under-fuselage beacons and antennas.
Operation on natural grass and gravel runways is satisfactory if the surface is hard, no ruts or major
surface irregularities, and there are no large loose stones. Some minor paint chipping can be expected
from small stones thrown up by the nose wheels, but large stones may cause dents. If possible, the pilot
should inspect the runway surface before using it.
Tire wear will increase if heavy braking is used, particularly on gravel surfaces. Even if only light braking
is used, the tires should be visually inspected before each flight.
On unpaved surfaces, it may be desirable to reduce the tire pressures. It is recommended that the
airplane should not be operated on a surface where the tires leave ruts. If ruts are formed, the tire
pressure should be reduced as much as possible.
NOTE:
Operation from unpaved runways may be subject to the approval of the local airworthiness
authorities.
Takeoff and landing techniques are similar to those for paved runways, subject to the following:
•
Refer to the appropriate Supplement in the Airplane Flight Manual for categories of unpaved runway
from which the airplane is certified to operate.
•
Upon landing, heavy braking should be avoided.
•
Thrust reversers may be deployed, but should not be used at more engine thrust than reverse idle,
except in an emergency.
•
After landing, the tires must be inspected for damage.
MINIMUM RUNWAY WIDTH
It has been demonstrated that, in zero crosswind, the maximum deviation from the intended take-off line
caused by failure of an engine during takeoff can, with prompt corrective action, be limited to 30 ft.
When deciding the minimum runway width necessary for a safe takeoff, allowance should be made for
the dimensions of the airplane and a safety margin should be included.
Содержание Hawker 800XP
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