20
Maintain Control
Ignition off
Forced Landing
After landing release seat belt
Evacuate ultralight.
9.7 On Ground Engine Fire
If fire occurring whilst on the ground proceed as follows:
Maintain control and use remaining speed to clear people, others ultralights and buildings.
Close the throttle.
Turn the ignition off.
After stopping release seat belt.
Evacuate the ultralight.
9.8 Propeller Damage
The indication of propeller damage is usually felt by extreme vibration and lack of thrust. Proceed as
follows:
Maintain Control and airspeed.
Close the throttle.
Turn the ignition off.
Prepare for forced landing.
This problem may be avoided if precautions are taken prior to take off. Inspect the airstrip or ground you
are going to use as your take off area for sticks, rocks or any debris that may be flicked up by the tires
and sucked through the propeller.
Ensure that all items carried on board (such as cameras and sunglasses) are secured so they are
not able to come loose and pass through the propeller.
WARNING
AT FULL ENGINE RPM THE TIP OF THE PROPELLER IS SPINNING AT SPEEDS IN EXCESS OF 650
KILOMETERS PER HOUR.
EVEN SMALL OBJECTS CAN CAUSE SIGNIFICANT DAMAGE TO THE PROPELLER.
9.9 Sail Damage
If you encounter damage to the sailcloth during flight, the first procedure is to maintain control of the
ultralight. If the sail damage is not changing the flight characteristics of the ultralight, land at the nearest
landing field to inspect the damage.
9.10 Stalls
In practice, in level flight it is difficult to induce a nose down stall of the ultralight, although it greatly
depends on the wing type you fly. The beginning of stall is indicated by a significant increase in control
bar loads.
Recovery from a mild stall is very gentle, whether power is on or off. Recovery is quick, with height
loss of less than 20 meters. A stall would have to be forced violently, to induce a danger.
Never stall with the nose pitched up too high. This is a dangerous maneuver and can result in a tail slide
followed by a severe tumble.
9.11 Spins and Spiral Descents
Deliberate spinning is prohibited.
A spiral dive may develop after a stall if the bar is maintained at the forward limit and a large roll rate is
allowed to develop. If this condition is not corrected it will lead to large and increasing roll attitudes
(beyond the 60 degree limit). Increasing attitude, increasing speeds and large control bar feed back
forces will occur. Incipient spiral dives can be terminated at any time by rolling wing level.
Summary of Contents for ANT-70
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