Maintenance Manual LS4
Issued: February 2019 TN4049
Copyright DG Flugzeugbau GmbH - any copy or publishing prohibited
Manual valid with the up-to-date cover page only
2.2.2 Examples for calculation of loading limits
This sample is for an LS4-b, procede similar for the other variants.
1) Min. cockpit load (fin tank empty)
With empty mass 255 kg/ 562 lbs and empty mass C.G. 665 mm/26,181 in
The min. cockpit load according to table section 2.3 is 75 kg/ 165 lbs
(limit values 586 mm/ 23,071 in up to 680 mm/ 26,772 in
> actual value 665 mm/ 26,181 in)
Min. cockpit load (fin tank 3,5 kg/ 7,7 lbs full)
With empty mass 258,5 kg/570 lbs and empty mass C.G. 711 mm/ 28,000 in
The min. cockpit load according to table section 2.3 is 85 kg/ 187 lbs
(limit values 580 mm/22,835 in up to 712 mm/28,031 in
> actual value 711 mm/ 28,000 in)
Min. cockpit load (fin tank 5,6 kg/12,3 lbs full)
With empty mass 260,6 kg/575 lbs and empty mass C.G. 739 mm/ 29,094 in
The min. cockpit load according to table section 2.3 is 95 kg/ 209 lbs
(limit values 577 mm/ 22,717 in up to 748 mm/29,449 in
> actual value 739 mm/ 29,094 in)
2) Max. mass of the non lifting parts
With empty mass 255 kg/ 562 lbs and empty mass C.G. 665 mm/ 26,181 in
The max. mass of the non lifting parts according to table section 2.4.1 (normal
water bags) is 234 kg/ 516 lbs
and according to table section 2.4.2 (TN 4047 “V 112”) 254 kg/ 560 lbs
Caution: With TN4049 neo-Winglets executed the max. mass of the non-lifting parts is
250 kg for all LS4 variants with and without neo-Winglets installed.
3) Max. cockpit load
a) Max. cockpit load with normal waterbags
Max. mass of the non lifting parts 234,0 kg/ 516 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 97,1 kg/ 214 lbs
Max. cockpit load (max. 110 kg/242 lbs.) 97 kg/ 214 lbs
4) Max. take-off mass 525 kg/ 1157 lbs
Entry in flight Manual page 6-2/3 for example above
Min. loading
for vertical fin
tank
Permanently
fitted mass
balance
Vertical
tail fin
battery
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