Jonker Sailplanes JS-MD 3 - Page 106

JS-MD 3
Aircraft Flight Manual
MD10-AFM-00-001
Issue: 01
Rev. 00
Rev. Date: 14-Feb-20
Page 6-16
Table 6.4-7 gives the load (litres of water) of the non-expendable ballast
tail tank to achieve a CG on the 75% mark.
Non-expendable tail tank load requirements to obtain optimum
cg (kg) (Fuel tanks full)
Pilot +
Parachute
60
70
80
90
100
110
Minimum cockpit weight on placard
(kg)
55
-6.7
-0.2
2.3
4.9
7.4
9.9
57
-3.2
-0.7
1.8
4.3
6.9
9.4
59
-3.8
-1.2
1.3
3.8
6.4
8.9
61
-4.3
-1.7
0.8
3.3
5.9
8.4
63
-4.8
-2.2
0.3
2.8
5.4
7.9
65
-5.3
-2.7
-0.2
2.3
4.9
7.4
67
-5.8
-3.2
-0.7
1.8
4.3
6.9
69
-6.3
-3.8
-1.2
1.3
3.8
6.4
71
-6.8
-4.3
-1.7
0.8
3.3
5.9
73
-7.3
-4.8
-2.2
0.3
2.8
5.4
75
-7.8
-5.3
-2.7
-0.2
2.3
4.9
77
-8.3
-5.8
-3.2
-0.7
1.8
4.3
79
-8.8
-6.3
-3.8
-1.2
1.3
3.8
Table 6.4-7
The colour coding is defined as follows:
Red coloured cells
Red coloured cells indicate load conditions outside of the aft limit.
Additional cockpit weight is required to fall within the CG range. Do no
operate the aircraft without ensuring the CG loading is correct
Amber coloured cells
Amber coloured cells indicate that the CG falls in the caution zone (aft
25%). It is strongly recommended to adjust the loading more forward to
the aft 25% position. The two options available are: