DG Flugzeugbau GmbH
Flight Manual LS 8-18 Emergency
Procedures
3.7.4 Flight with asymmetric Water Ballast Loading
Uneven water dumping may be recognised as follows:
(1)
with free aileron, one wing tends downward.
(2)
for straight flight at low speeds considerable aileron deflection is required.
then:
(a)
stop further water ballast discharge to avoid even higher asymmetry due to increased
weight difference
(b)
avoid stalling
(c)
for landing: Increase approach speed at least by about 10 km/h (5 Kt.; 6 mph) over
normal approach speed and touch down with this increased speed.
(d)
to avoid ground looping, apply aileron shortly after in the direction as noticed before.
3.7.5 Cable failure during Winch Launch
(a)
Immediately push stick forward until airspeed indication is within ASI green range
(b)
Release cable
(c)
According to altitude:
(1) use short traffic pattern and make safety landing on airfield or
(2) extend airbrakes immediately and land in front of winch
Caution:
Water ballast discharge is recommended before each landing. Landing with maximum
all-up weight is not recommended. In this case at least 25 Litres (6.6 US gallons,
5.5 UK gallons) –corresponding to 15 seconds of discharge time- should be dumped
prior to landing.
3.7.6 Emergency Landing with Landing Gear Retracted
Emergency landings with landing gear retracted are
not recommended
, because energy
absorption of the sprung landing gear compared to the fuselage shell is higher.
If however an emergency landing with gear retracted is necessary, do not touch down with
minimum speed to avoid stalling and resulting impact of cockpit region.
Warning: Always dump as much water as possible
3.7.7 Ground Loop
When a landing strip obviously will not be long enough for a normal landing, initiate a ground
loop at least 50 m (150 ft) before the end:
(a)
steer wingtip to desired direction onto the ground, whenever possible the windward side
should be preferred.
(b)
simultaneously decrease tail skid load by controlled forward stick deflection.
Edition: July 1999
LBA-appr. Revision - 0
Page 3-5
