9.4-5 PERFORMANCE
Airplane performance and stall speeds without ice accumulation are
essentially unchanged with the installation of the TKS Ice Protection System.
Signicant climb and cruise performance degradation, range reduction, and
stall speed increase can be expected if ice accumulates on the airframe.
Residual ice on the protected areas and ice accumulation on the unprotected
areas of the airplane can cause noticeable performance losses and stall
speed increases even with the Ice Protection System operating.
STALL SPEEDS WITH ICE ACCUMULATION
Conditions:
CG
.......................................................................................... Most Forward
Power
................................................................................................... IDLE
Weight
(LB)
BANK
ANGLE
(DEG.)
STALL SPEEDS
FLAPS 0° FLAPS 10° FLAPS 20°
KIAS KCAS KIAS KCAS KIAS KCAS
7255
0 63 78 51 68 47 62
30 67 83 55 73 50 66
45 75 93 61 81 56 74
60 89 110 72 96 66 87
6690
0 60 74 49 63 45 59
30 65 79 52 67 48 63
45 72 87 58 75 54 70
60 85 104 69 89 64 83
6000
0 57 71 46 62 43 56
30 61 76 50 66 46 60
45 68 84 55 74 51 67
60 81 100 65 87 60 80
5000
0 52 65 42 56 39 51
30 56 69 45 60 42 55
45 62 77 50 67 46 61
60 74 91 60 80 55 73
Table 9.4-1 – Stall Speeds
NOTES: Maximum altitude loss during wings level stall is approximately
500 feet. KIAS values are approximate and may not be accurate at the
stall. The following stall speeds are with approximately 3 inches of ice
build-up on the unprotected portions of the wing leading edges.
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