7.11 Ignition Circuit Failure
The Rotax engine requires a short circuit on the ignition circuit to stop the engine. If the ignition circuit is broken
using full choke to flood the engine should stop the engine.
Do not restart the engine until the fault has been fixed.
7.12 Stalls
In practice, in level flight it is only possible to induce a nose down stall of the ultralight in level flight at
high take off weights. 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. As a guideline, the nose up angle at which the ultralight stalls is about the
nose down angle it will recover at.
7.13 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 wings level. If the spiral dive is allowed to
develop to extreme roll attitudes, recovery is expedited by relieving control bar forces before rolling wings level
and recovering from high-speed condition.
WARNING
DO NOT ATTEMPT TO SPIN THE ULTRALIGHT.
SPIRAL DIVES SHOULD NOT BE ATTEMPTED.
DURING DESCENDING TURNS ULTRALIGHT ATTITUDE MUST BE KEPT WITHIN PLACARDED
PITCH, ROLL AND AIRSPEED LIMITS.
8. ULTRALIGHT DE-RIGGING PROCEDURE
Careful attention to the recommended rigging and de-rigging sequences will protect the ultralight from the
risk of unnecessary damage.
The de-rigging procedure is a direct reversal of the rigging procedure. A summary of the procedure
follows:
8.1 Removing Wing from Trike
See section 4.4 (Attaching Wing to Trike) and use reverse procedure:
· Apply park brake.
- Set the trim device to the aft position and then slightly forward.
- Disconnect the socket connector and remove the trim device from the wing.
· Remove the bolt from the front support compression tube.
- Remove the bolt from the pylon joint.
· Lower the wing until the control bar is on the ground.
- Remove the nose cone from the wing.
- Lower the nose of the wing to allow the front wheel to be rolled forward over the control frame.
- Detach the rescue system bridle from the carabines.
- Detach the back up loop.
· Unbolt the trike from the U Bracket.
