Jonker Sailplanes JS-MD 3 - Page 95

JS-MD 3
Aircraft Flight Manual
MD10-AFM-00-001
Issue: 01
Rev. 00
Rev. Date: 14-Feb-20
Page 6-5
#
Momen
t
Load point
Max Mass
Moment arm
kg
lbs
mm
inch
1
M
Pilot
Pilot (with parachute)
115
253.5
-645
-25.4
2
M
Cockpit
Cockpit ballast
(removable)
20
44.1
-450
-17.7
3
M
O2
O2 bottle AL248
2
4.4
0
0
4
M
Bag
Baggage compartment
1
2.2
150
5.9
5
M
WingM
Water ballast - main
~156
~344
247
9.7
6
M
WingT
Water ballast – tip
(18 m)
~36
~79
480
18.9
7
M
FusT
Fuel tank - top
~5.6
~12.3
500
19.7
8
M
FusB
Fuel tank – bottom
~12.7
~28
853
33.6
9
M
Tail1
Expendable tail tank
5.8
13
4285
168.7
10
M
Tail2
Non-expendable tail
tank (SN <080)
~8.9
~19.6
4510
177.6
11
M
Tail3
Tail lead ballast
(permanent)
~6
~13.2
4121
162.2
Table 6.3-1
NOTE: The moment arm of the main water ballast tanks is a
conservative approximation and changes from 200 mm
to 247 mm as the main tanks are filled.
NOTE: Due to the manufacturing process of the fuel tanks
actual values may vary.