Jonker Sailplanes JS-3 Rapture User Manual

JS-MD 3
Aircraft Flight Manual
MD10-AFM-00-001
Issue: 01
Rev. 00
Rev. Date: 14-Feb-20
Page 6-12
Expendable tail tank
The expendable tail tank is only used to offset the CG change due to the
water ballast in the main wing tanks.
Load point
Mass
Moment arm
kg
lbs
mm
inch
M
TAIL1
Expendable tail tank
5.8
13
4240
167
Table 6.4-1
To offset the forward CG change due to water in the main wing tanks,
the expendable tail tank must be filled according to the Table 6.4-2 given
below.
Water in main tanks
Required water in tail tank
Litres
US gallons
Litres
US gallons
0
0
0
0.0
20
5.3
0.8
0.2
40
10.6
1.4
0.4
60
15.9
2
0.5
80
21.1
2.7
0.7
100
26.4
3.6
1.0
120
31.7
4.5
1.2
140
37.0
5.3
1.4
158
42.3
5.8
1.5
Table 6.4-2

Jonker Sailplanes JS-3 Rapture Specifications

General

Brand	Jonker Sailplanes
Model	JS-3 Rapture
Category	Aircrafts
Language	English