Filling The Fin Ballast Tank; Ballast Box In The Fin - DG Flugzeugbau DG-1000 Flight Manual

4.2.3

Filling the fin ballast tank

This tank must be filled after filling the wingtanks. Determine the amount (see
section 6.8.6). Connect the transparent funnel equipped filling hose (supplied
with the aircraft) via the hose connector GRS 10-12 to the hose which comes out
of the left rear end of the fuselage.
The funnel can be suspended from the top of the rudder.
Fill with clean water using a graduated measuring vessel.
In addition you may check the content level by holding the filling hose against
the scale on the fin.
After filling, push the fin tank dump lever in a forward direction (the dump
valve will be closed by a spring).
Then remove the filling hose with the hose connector.
4.2.4

Ballast box in the fin

To fill the ballast box remove the Plexiglas cover plate by inserting a 6mm pin
into the hole of the upper locking device and move the locking pin downwards.
Determine the amount of trim-weights according to section 6.8.7. Slide the
weights into the rails of the box. The heavy weights with 2,4 kg (5.3 lbs.) each
must be installed in the lower 4 sections and the lighter weights with 1,2 kg
(2.65 lbs.) each in the upper 2 sections. It doesn't matter in which sections the
weights are installed (in case that not all sections will be filled up), but it is not
allowed to insert the light weights into the sections for the heavy weights. Close
the compartment.
Caution: When changing trim ballast, check condition and correct gluing of the
foam rubber rings 10L45/2 in the ballast box in the fin. Without these rings a
correct indication is not possible.
Replace damaged rings according to Service Info 67-07, attached to the MM.
Warning: Check that the locking device has engaged completely.
Tape the cover of the fin ballast box with tape min. 19mm (3/4 in.) wide prior to
each flight.
A control light in the front instrument panel starts blinking after each transaction
with the weights. By counting the amount of blinks, the amount of ballast can be
determined. For a heavy weight 2 blinks appear and 1 blink for a light weight,
this means 10 blinks if the box is filled up completely. After a pause of 2-3
seconds the blinking will be repeated etc. The blinking can be stopped by
pressing on the control light. Pressing again on the control light reactivates the
blinking feature.
After filling the ballast box you should check the correct indication of the
control light.
A switch will be operated by the locking pin of the ballast box cover when the
pin locks correctly. As long as the switch is not closed, the control light for the
ballast box will blink with doubled speed without interruption. The blinking
can't be switched off by pressing on the control light contrary to the blinking
which indicates the amount of ballast.
Issued: February 2011
Flight manual DG-1000T
TM 1000/18 EASA app.
4.5