SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK
Arcus M
FLIGHT MANUAL
G E N E R A L
WARNING:
1. On longer flights at air temperatures near 0° C (32° F),
water ballast must always be dumped when reaching.
2. Before the wing water tanks are filled, it should be checked
(with dump valves opened) that both drain plugs rise up equally.
Clean and grease the plugs and their seats.
Close the dump valves with the lever in the cockpit and check the
tight sealing of both valves.
Slightly dripping leakages can be corrected by pulling the drain plugs home
with the threaded tool used to attach the horizontal tailplane.
CAUTION:
3. There is little point in loading much water ballast if the average rate of climb
expected does not exceed 1.0 m/s (197 fpm).
The same applies to flights in narrow thermals requiring steep bank angles.
4. If possible, all water ballast should be dumped before conducting an off-field
landing.
WARNING:
5. Never pressurize the tanks - for instance by filling them directly from a water
hose – and always pour in clean water only.
6. The Arcus M, should never be parked with full ballast tanks if there is
any danger whatsoever of them freezing.
Even in normal temperatures the parking period with full tanks
should not exceed a few days.
Optimally, for parking, all water ballast should be completely
drained and filler caps removed to allow the tanks to dry out.
7. Before the fin tank is filled, check that those spill holes not being taped
closed are indeed clear.
October 2011
Revision --
appr. 4.5.6.5
