Super 80 Professional – AOM
OPERATING TECHNIQUES
Section 4 Page 5
Super 80 Professional – Aircraft Operating Manual
Coolsky, 2018
CRUISE
Climbing to a Higher Altitude
Start a climb to a higher altitude by using
the VERT SPD mode or by slowly increasing
pitch if hand flying. When the aircraft has
reached the desired climb speed, engage
IAS/MACH HLD.
Cruise Speed
The cruise speed commanded by the FMS is
the recommended cruise speed. This speed
ensures efficient and economical fuel burn.
DESCENT
Descent Speed
Above the Mach crossover altitude,
descend at the cruise Mach speed. Below
the Mach crossover altitude, descend at
280KIAS.
Standard Descent Procedure
The standard procedure for descent is to
descend with a clean aircraft at idle power.
If the pilot needs to expedite the descent for
traffic reasons, speedbrakes should be used
to increase the rate of descent.
Descents with flaps/slats extended and/or
gear down should be avoided as they are
airspeed limited, noisy and expensive.
The FMS will present an optimum descent
profile with Top of Descent (TD) and End of
Descent (ED). ATC and traffic allowing, the
pilot should follow the optimized descent
plan provided by the FMS.
If it becomes necessary to manually
calculate the TD/ED, use the following
method:
•
Determine the altitude difference
(total altitude you need to descend)
•
22,000ft
•
Drop the last three digits
•
22,000 → 22
•
Multiply by three
•
22 x 3 = 66
•
For an unrestricted descent to a
landing, add 10 NM.
•
66 + 10 = 76
•
For a descent to an intermediate
lower altitude, no additive is
required.
•
Add 2 NM for every 10 knots of
tailwind and subtract 2 NM for every
10 knots of headwind.
•
30 knots tailwind
•
76 + (3 x 2) = 82
•
Our TD is approximately 82NM away
from our landing destination or ED.
Cabin Pressurization During Descent
A 3° descent profile will help maintain a
300fpm cabin rate of descent. Multiply the
ground speed by six to find the required
vertical speed required to maintain a 3°
descent profile.
