MAC PARA Muse-5, User Manual

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Asymmetric collapse:
A negative angle of attack can cause all or part of the leading-edge of the Muse 5 to
collapse (e.g. in turbulent air). Basically the Muse 5 will re-open spontaneously from
closures of up to 70% with a change of direction of up to 90°. The time this takes, and the
associated height loss, can however be noticeably reduced by appropriate action by the
pilot. Apply opposite brake on the inflated side, the outside of the curve, to stop the turning
movement of the canopy. This should be accompanied by appropriate weight-shift. If you
react immediately, 30% brake on the open side should suffice to hold the canopy on a
straight course. In the event of a big collapse, this braking should be applied very carefully to
avoid stalling the remaining inflated wing. The pilot’s correction for direction can be aided by
a pumping out the deflation; a slow, long pumping action of the brake of the deflated side of
the wing helps the canopy to re-inflate. If the glider does not self recover and the pilot does
not correct the canopy can enter a stable spiral dive!
WARNING!! The Muse 5 is a paraglider with shark nose airfoils and with more backwards
positioned A suspension points. These airfoils and postion of A suspension points give more
inherent stability and offers more resistance against collapses. It wasn`t necessary to
feature the Muse 5 with special folding lines to perform the manoeuver. But nevertheless the
accelerated asymetric collapse must be performed correctly in a propper way and this
preferably by safety trainings.
It is important to take the outermost A1-riser together with A-main riser firmly in one hand.
At the beginning of pulling the move (in the direction of pilot`s body ) must be slow and after
the move of cca 5 cm, it can only be strongly pulled down. In case the A1-riser is not
properly held along with the main A-riser, it may happen that the wing tip opens faster. The
opening is then distinctive with the risk of a cravat.
“Cravat” / Line-over:
In the event of some lines becoming tangled during flight (caused by whatever), the
following action is recommended: The pilot stabilizes the glider by gently applying the
brakes. Please be aware that in this condition the brake pressure can be higher and the
brake travel shorter.
Without pilot input a line-over will result in a stable spiral dive.
Here are the various options to untangle a line-over:
 pumping the collapsed side.

pulling the stabilizer line or lines causing the problem.
 should both measures fail, it may be possible to untangle the line-over by inducing a full
stall. This manoeuvre, however, should only be carried out by advanced pilots with
experience in extreme flight situations and with sufficient altitude available.
Attention! If these manoeuvres fail or if in any doubt, the pilot should instantly use their
emergency parachute system!