SECTION 5
PERFORMANCE
SOCATA
MODEL TB 20
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© 1988, 1991, 1992, 1994 to 1996, 1997, 2000 -
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June 30, 1988
Revision 5
5.7
NOTICE
Performance given in this section are based on tests and interpolated to
standard conditions (ICAO) and extrapolated from parameters : weight,
altitude, temperature...
Performance values given do not take into account factors such as pilot
technique or degraded airplane condition.
Take–off and landing performance figures are based on a dry hard surface
runway.
The total take–off and landing distances (taxiing and clear 50 ft) will be
corrected as follows :
– Influence of runway condition :
Increase by :
7 % on hard sod
10 % on short grass
25 % on high grass
– Influence of wind :
. Increase by 30 % for each 10 kt rear wind
. Reduce by 10 % for each 10 kt headwind.
ALTERNATE AIR INFLUENCE
If flight conditions may cause icing, it is recommended to operate the lower
pull control actuating Alternate Air flap. This operation has an influence on the
engine developped power due to the appreciable elevation of air intake
temperature and alters the take–off distance by approximately 10 %. During
climb at maximum power, climb speed drop is 150 ft / min. During climb at
lower power and during cruise flight, rated performance could be established
by increasing manifold pressure of 1 in.Hg at the same power.
