DG Flugzeugbau LS4 - Empty Mass C.G. Range

Maintenance Manual LS4
Issued: May 2011
Copyright DG Flugzeugbau GmbH - any copy or publishing prohibited
Manual valid with the up-to-date cover page only
2-6
Examples for calculation of loading limits cont.
b) Max. cockpit load for with waterbags “V-112” according to TN 4047
Max. mass of the non lifting parts 254,0 kg/560 lbs.
deduct:
fuselage with complete equipment, battery in baggage compartment,
canopy, main pins, 130,6 kg/288 lbs.
horizontal tailplane 6,3 kg/ 14 lbs.
Payload in fuselage 117,1 kg/258 lbs.
Max. cockpit load (max. 110 kg/242 lbs.) 110 kg/242 lbs.
4) Max. take-off mass 525 kg/1157 lbs.
Entry in flight Manual page 6-2/3 for example above
Empty
mass
kg/lbs
C.G.
position
mm/in
Max.
loading
kg/lbs
Min. loading
for vertical fin
tank
Permanently
fitted mass
balance
Vertical
tail fin
battery
Wing
tank
volume
Date/
Inspector
Full
kg/lbs
Empty
kg/lbs
Front
kg/lbs
rear
kg/lbs
Yes /
No
Ltr./Gal
255 /
665 /
110 /
95 /
75 /
- - -
- - -
No
V112 /
Dez.
2009/ Dö
562
26,181
242
209
165
- - -
- - -
29,6
Note for both examples: The small margin between maximum load (97 kg <214
lbs>) and minimum cockpit load with vertical fin tank full (95 kg < 209 lbs>, here
entered for 5.5 Liter tank) indicates a pre-flight check of the fin tank valve before
every take-off is required. If passage can’t be verified while blowing air through the
valve, water is most likely remaining in the tank and therefore the tank requires
such a high minimum cockpit load.
Note for both examples: The mass of a battery in the fin and of waterballast in the
fin tank don’t count to the mass of the non-lifting parts, but must be counted when
determining the max. total waterballast for not exceeding the max. TOW.
2.3 Empty mass C.G. range
Note: With TN LS-S-01 the same in-flight C.G. limits as for LS4-a and LS4-b have
been approved for variant LS4 too. So you will find only 1 set of tables valid for all
variants in this manual.