JS-MD 1C Aircraft Flight Manual
MD01-AFM-00-001
Issue: 02
Rev. 00
Rev. Date: 14.09.2017
Page 4–18
Inter thermal cruise
To optimise the glide performance, it is important to select the proper
flap according to weight and cruise speed. The flaps modify the airfoil’s
camber, maintaining laminar flow over a wide range of lift coefficients.
For every speed and weight combination, there is an optimum flap
setting for maximising the glide angle.
The following table gives the optimum flap setting as a function of speed
and weight.
Flap
settings
4
3
2
1
&
deflection
+13.5°
+5°
0°
-3°
C
o
n
fi
g
u
ra
ti
o
n
With no
water
ballast
90 - 110
km/h
49 - 59 kts
110 - 120
km/h
59 - 65 kts
120 - 180
km/h
65 - 97 kts
180 - V
NE
km/h
97 - V
NE
kts
With
max
water
ballast
105-125
km/h
57 - 67 kts
125-140
km/h
67 - 76 kts
140-200
km/h
76 - 108 kts
200 - V
NE
km/h
108 - V
NE
kts
Table 4.5.2- 1
CAUTION:
Observe airspeed limits versus altitude to avoid
exceeding V
NE
and V
FE
.
