C
IRRUS
D
ESIGN
S
ECTION
5: P
ERFORMANCE
D
ATA
SR20
T
AKEOFF
D
ISTANCE
P/N 11934-005
5-19
Takeoff Distance
Conditions:
•
Winds ..................................................................................................... Zero
•
Runway.............................................................................Dry, Level, Paved
•
Flaps......................................................................................................... 50%
•
Air Conditioner .....................................................................................OFF
•
Power........................................................................................ Full Throttle
•
Mixture................................................................................. Set per Placard
Set prior to brake release for short field takeoff.
The following factors are to be applied to the computed takeoff distance for
the noted condition.
Headwind - Subtract 10% from computed distance per each 12 knots head-
wind.
Tailwind - Add 10% per each 2 knots tailwind up to 10 knots.
Grass Runway, Dry - Add 20% to ground roll distance.
Grass Runway, Wet - Add 30% to ground roll distance.
Sloped Runway - Increase table distances by 22% of the ground roll
distance at Sea Level, 30% of the ground roll distance at 5000 ft, 43% of the
ground roll distance at 10,000 ft per each 1% of upslope. Decrease table
distances by 7% of the ground roll distance at Sea Level, 10% of the ground
roll distance at 5000 ft, and 14% of the ground roll distance at 10,000 ft per
each 1% of downslope.
• CAUTION •
The above corrections for runway slope are required to be
included herein. These corrections should be used with caution
since published runway slope data is usually the net slope from
one end of the runway to the other. Many runways will have
portions of their length at greater or lesser slopes than the
published slope, lengthening (or shortening) takeoff ground roll
estimated from the table.
– If brakes are not held while applying power, distances apply from
point where full throttle and mixture setting is complete.
– For operation in outside air temperatures colder than this table
provides, use coldest data shown.
– For operation in outside air temperatures warmer than this table
provides, use caution.
– Aircraft with optional Air Conditioning System: Add 300 ft to
ground roll distance and 400 ft to distance over 50 ft obstacle if Air
Conditioner is ON during takeoff.
Reissue A
