Using Trimmers; Asymmetric Or Frontal (Symmetric) Collapses; Full Stall; Flying Without Brakes - SKY PARAGLIDERS METIS 4 Serie Bedienungsanleitung

4.7. Using trimmers
Your METIS 4 is set up with trim tabs. This system involves the
additional pre-flight check of verifying that the trimmers are set
symmetrically.
For the following situations we recommend trim setting:
on/trimmers tight
• Steeply sloping launch.
• Flight with a heavy passenger (Total Flying Weight 180-220 kg).
• Thermal flight.
For the following situations we recommend trim setting:
off/trimmers loose
• Gently sloping launch.
• Flight with a light passenger (Total Flying Weight 130-160 kg).
• Transition glides.
Note: METIS 4 features our magnetic 'Tab tidy' system. When
flying with trimmers set at slower speeds, trimmers on, the excess
trim tab webbing can now be neatly stowed on the dedicated riser
magnet to avoid unnecessary flapping and interference.
4.8. Asymmetric or Frontal
(Symmetric) Collapses
Despite that tests proved the METIS 4 recovers on its own
after collapses, active piloting is recommended in case of an
asymmetric or frontal collapse. Active piloting will reduce the
loss of altitude and a change of direction.
In case of a frontal (symmetric) collapse:
• Bring both brakes down symmetrically to speed up the
reopening of the paraglider, and then raise your hands
back up immediately.
In case of an asymmetric collapse:
• Keep the paraglider flying straight by leaning in the
opposite direction of the collapse and simultaneously
applying the brake on the opposite side of the collapse.
• Speed up the reopening of the closed side by a single,
positive input on the collapsed side.
4.9. Full Stall
Certain behaviour or weather conditions can bring about a full
stall. This is a serious incident that can be difficult to manage.
In the case where the stall occurs at less than 100 m above the
ground, it is recommended to use your reserve parachute.
Main Causes of a Full Stall:
• A poorly timed or an extensive use of brakes when the air
speed of the wing is reduced (e. g. when coming out of
a spiral or speeding up after a B-line stall).
• Soaked or heavily drenched leading edge (from rain or
a cloud) can result in a stall due to an uneven airflow over
the leading edge. This process has been related to high
levels of porosity in the glider's cloth.Whatever the cause,
a full stall can be either symmetrical or a spin.
In both cases the pilot has two possible courses of action:
• If the full stall happens above 100 m it is strongly
recommended to execute the stall recovery supposing
the pilot is familiar with the process of such an action
(e.g. a complete execution of the full stall, stabilization of
the wing and lifting hands progressively to come back to
a normal flight).
• If the full stall happens below 100 m or if the pilot is
unfamiliar with the stall recovery, the reserve should be
deployed immediately.
4.10. F lying Without Brakes
If a brake line or pulley breaks it is possible to fly the METIS
4 using the D risers (rear risers). The movements must be well
controlled as the deformation of the wing when pulling on the D
risers is greater than that produced by using the brakes.
Tip: Practice this way of steering to be prepared in case of
a brake failure!
METIS 4
User manual / Handbuch / Navod k obsluze
4.11. C omments on the Testing
Procedures
All maneuvers were carried out over water in a stable air mass
with standard temperature, humidity and pressure. They were
carried out by professional pilots trained to react to any problem
in the most appropriate manner.
Test reports are available on the website: www.sky-cz.com.
4.12. A djustment of the harness
For test flights the pilots used ABS harnesses with the following
set-up:
Distance from
Size
seat board
METIS 4 40
50 cm
METIS 4 42 55 cm
We recommend adjusting the harness in a very similar way to
the test adjustment. Excessive cross-bracing increases the risk
of twisting the risers.
A looser setting will result in a tendency to lean towards the
collapsed side.
Lower hang points reduce the roll-stability of your harness and
can slow down the reopening of asymmetric collapses.
Higher hang points (+ 2–4 cm) have no influence on inflight
safety and can therefore be tolerated.
Distance
between
hanging points
54 cm
55 cm
10