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 Calculation of loading limits, example
2.2.1 Calculation of loading limits
1. Determine Minimum Cockpit Load from table "Empty mass C.G. Position"
in section 2.3 with the empty mass determined according to section 2.1.
If a fin tank is installed, determine Minimum Cockpit Load with empty and
full fin tank.
When being used in a club, Minimum Cockpit Load should be 70 kg (154
lbs) for empty or non-existent tail fin tank.
If it is higher, permanent ballast may be fitted under the forward seat portion,
see section 8.1.
Finally, resulting Minimum Cockpit Load (for full and empty fin tank if
existent) should be entered in the following places:
- in weighing report of inspection
- under instrument panel cover
- on Data Placard in cockpit
- in Flight Manual on page
LS4 and LS4-a: 1-6
LS4-b: 6-2 and 6/3
2. Maximum mass of non-lifting parts
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
(TN4046/4047 must be performed).
The increase of the max. mass of the non-lifting parts according to sections 2.4.1
and 2.4.2 is not applicable.
Note: With TN LS-S-01 the procedure to determine the max. mass of the non-
lifting parts used for the LS4-b will also be allowed for the LS4 and LS4-a.
Maximum mass of non-lifting parts may vary between 230 and 244 kg (507
and 538 lbs) or with (TN 4046/4047, with TN LS-S-01 also valid for LS4
and LS4-a) between 250 and 264 kg (551 and 582 lbs)
In contrast to methods used up to now the maximum mass of non-lifting
parts can be determined in relation to empty mass and empty mass C.G.
position according to tables in section 2.3, see also example in section 2.2.2.
Maximum mass of non-lifting parts should be entered into Weighing Report.
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