LS10-s / LS10-st - DG Flugzeugbau
LS10-s / LS10-st - DG Flugzeugbau
LS10-s / LS10-st - DG Flugzeugbau
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Flight manual <<strong>st</strong>rong>LS10</<strong>st</strong>rong>-s,-<strong>st</strong><br />
4.2.3 Filling the water balla<strong>st</strong> tanks<br />
4.2.3.1 General:<br />
The <<strong>st</strong>rong>LS10</<strong>st</strong>rong> features a unique waterballa<strong>st</strong> sy<strong>st</strong>em which consi<strong>st</strong>s of two<br />
watertanks in the fin and two separate integral tank-sy<strong>st</strong>ems in each wing (one<br />
outboard sy<strong>st</strong>em consi<strong>st</strong> of 2 tanks which mu<strong>st</strong> be filled separately but will be<br />
dumped together).<br />
The unique feature of the new sy<strong>st</strong>em is that the <<strong>st</strong>rong>LS10</<strong>st</strong>rong> is equipped with two<br />
completely independent waterballa<strong>st</strong> sy<strong>st</strong>ems which can be drained separately.<br />
With both sy<strong>st</strong>ems the respective fin tank compensates the C.G. shift due to<br />
the wing-balla<strong>st</strong>. The respective fin tank will be drained together with its<br />
wingtanks by operation of one handle only.<br />
By dumping one of the sy<strong>st</strong>ems you can adopt the glider to changing weather<br />
conditions but <strong>st</strong>ill fly with the same C.G..<br />
Warning: Filling up the wing water balla<strong>st</strong> sy<strong>st</strong>em is only allowed in the<br />
following order: outer tanks, centre tanks, inner tanks.<br />
Filling up the centre water balla<strong>st</strong> tanks is only allowed after the outer tanks<br />
are completely filled.<br />
Filling up the inner water balla<strong>st</strong> tanks is only allowed after the outer and<br />
centre tanks are completely filled.<br />
Otherwise over<strong>st</strong>ressing the wing <strong>st</strong>ructure may occur in flight.<br />
Warning: Dumping water is only allowed from the inner to the outer tanks.<br />
This order is provided by the arrangement of the control handles.<br />
It is not permitted to alter this sy<strong>st</strong>em!<br />
Warning: Filling the water balla<strong>st</strong> is only allowed with a filling sy<strong>st</strong>em which<br />
enables determination of the exact amount of balla<strong>st</strong> filled, e.g. water gauge or<br />
calibrated cani<strong>st</strong>ers. Fill with clean water. Only symmetrical loadings are<br />
allowed.<br />
After filling, balance the wings by dumping water from the heavier wing.<br />
A leaking water balla<strong>st</strong> sy<strong>st</strong>ems may result in an unintentional C.G. movement<br />
or asymmetric flight condition which is dangerous and therefore flying with<br />
such a failure is <strong>st</strong>rictly prohibited.<br />
Warning: Follow the loading chart, refer to section 6.8.<br />
Don’t try to fill more water into the tanks than the specified values.<br />
The max. take-off weight mu<strong>st</strong> not be exceeded.<br />
Warning: Never fill the wing tanks from a main pressure water supply. Filling<br />
the wing tanks with excessive pressure (more than 0.2 bar, 3 psi) will<br />
definitely bur<strong>st</strong> the wing shell!<br />
The same applies for the fin tanks.<br />
Issued: October 2009 EASA app. 4.4
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