SCHEMPP-HIRTH FLUGZEUGBAU GmbH., KIRCHHEIM/TECK
Ventus-2cM
WING SPAN – 18 m (59.06 ft)
Water ballast load
Maximum all-up mass including water ballast:
565 kg / 1246 lb
C/G position of water ballast in wing tanks (aft of datum):
Inboard
wing: 179
mm
/
7.05
in
Outboard
wing:
220
mm
/
8.66
in
Total capacity of wing tanks (Inbd. and Outbd. wing):
202 kg / 445.3 lb
Inboard
wing: 174
kg
/
383.6
lb
Outboard
wing:
28
kg
/
61.7
lb
Warning:
To prevent overloading of the wing structure always fill water ballast
in outboard wing panels first, afterwards fill the inboard wing panels!
Table of water ballast loads at various empty masses and seat loads:
Wing span 18 m / 59.06 ft:
L O A D O N T H E S E A T ( k g / l b )
Empty
mass +
fin ballast
kg lb
kg lb
70 154
kg lb
80 176
kg lb
90 198
kg lb
100 220
kg lb
110 242
340 750 155 40.9 34.1
145
38.3 31.9 135 35.7 29.7
125
33.0 27.5
115
30.4 25.3
350 772 145 38.3 31.9
135
35.7 29.7 125 33.0 27.5
115
30.4 25.3
105
27.7 23.1
360 794 135 35.7 29.7
125
33.0 27.5 115 30.4 25.3
105
27.7 23.1
95 25.1 20.9
370 816 125 33.0 27.5
115
30.4 25.3 105 27.7 23.1
95 25.1 20.9
85 22.5 18.7
380 836 115 30.4 25.3
105
27.7 23.1 95 25.1 20.9
85 22.5 18.7
75 19.8 16.5
390 858 105 27.7 23.1
95 25.1 20.9 85 22.5 18.7
75 19.8 16.5
65 17.2 14.3
400 880 95 25.1 20.9
85 22.5 18.7 75 19.8 16.5
65 17.2 14.3
55 14.5 12.1
410 902 85 22.5 18.7
75 19.8 16.5 65 17.2 14.3
55 14.5 12.1
45 11.9
9.9
420 924 75 19.8 16.5
65 17.2 14.3 55 14.5 12.1
45 11.9
9.9 35 9.2 7.7
Liter
US
Gal.
IM
P
Gal.
Liter
US
Gal.
IM
P
Gal.
Liter
US
Gal.
IM
P
Gal.
Liter
US
Gal.
IM
P
Gal.
Liter
US
Gal.
IM
P
Gal.
W A T E R B A L L A S T I N W I N G T A N K S
Note:
When determining the max. permitted wing water ballast load, allowance must be made
for water ballast in the fin tank (see page 6.2.6 and 6.2.7), i.e. this load must be added
to the empty mass shown on the above table.
Empty mass as per page 6.2.3, fin ballast as per page 6.2.7.
November 2003
Revision
--
SCHEMPP-HIRTH FLUGZEUGBAU GmbH., KIRCHHEIM/TECK
FLIGHT MANUAL
WING SPAN – 15 m (49.21 ft)
Water ballast load
Maximum all-up mass including water ballast:
525 kg / 1157 lb
C/G position of water ballast in wing tank (aft of datum):
Inboard
wing: 179
mm
/
7.05
in
Total capacity of wing tanks:
Inboard
wing: 174
kg
/
383.6
lb
Table of water ballast loads at various empty masses and seat loads:
Wing span 15 m / 49.21 ft:
L O A D O N T H E S E A T ( k g / l b )
Empty
mass +
fin ballast
kg lb
kg lb
70 154
kg lb
80 176
kg lb
90 198
kg lb
100 220
kg lb
110 242
320 705
135 35.7 29.7
125
33.0 27.5
115
30.4 25.3
105
27.7 23.1 95 25.1 20.9
330 728
125 33.0 27.5
115
30.4 25.3
105
27.7 23.1
95 25.1 20.9 85 22.5 18.7
340 750
115 30.4 25.3
105
27.7 23.1
95 25.1 20.9
85 22.5 18.7 75 19.8 16.5
350 772
105 27.7 23.1
95 25.1 20.9
85 22.5 18.7
75 19.8 16.5 65 17.2 14.3
360 794
95 25.1 20.9
85 22.5 18.7
75 19.8 16.5
65 17.2 14.3 55 14.5 12.1
370 816
85 22.5 18.7
75 19.8 16.5
65 17.2 14.3
55 14.5 12.1 45 11.9 9.9
380 836
75 19.8 16.5
65 17.2 14.3
55 14.5 12.1
45 11.9
9.9 35 9.2 7.7
390 858
65 17.2 14.3
55 14.5 12.1
45 11.9
9.9 35 9.2 7.7 25 6.6 5.5
Liter
US
Ga
l.
IMP
Ga
l.
Liter
US
Ga
l.
IMP
Ga
l.
Liter
US
Ga
l.
IMP
Ga
l.
Liter
US
Ga
l.
IMP
Ga
l.
Liter
US
Ga
l.
IMP
Ga
l.
W A T E R B A L L A S T I N W I N G T A N K S
Note:
When determining the max. permitted wing water ballast load, allowance must be made
for water ballast in the fin tank (see page 6.2.6 and 6.2.8), i.e. this load must be added
to the empty mass shown on the above table.
Empty mass as per page 6.2.3, fin ballast as per page 6.2.8.
6.2.5
Summary of Contents for Ventus-2cM
Page 11: ......
