APCO Aviation Mayday Squared, Manual

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Parachute Installation
The parachute is designed for use in paragliding harnesses as a rescue parachute. The parachute is attached to the
harness by means of a larks-head knot or Maillion Rapide with a minimum declared strength of 2000kg. The placement
of the rescue parachute into the rescue parachute casing is subject to technical specification of the harness in use. The
parachute can be used in all standard locations (front, rear, bottom or side).
Only qualified persons or the manufacturer may install the rescue parachute into the harness.
Parachute Functionality
The rescue parachute is used as a safety measure for paragliders, and requires some height above ground for it to
function. This height depends on factors such as airspeed and rate of vertical descent, strength and direction of the
throw and more, so the exact minimum functional height cannot be determined or specified. The parachute is deployed
by pulling the release handle which is fixed to the container where the rescue parachute is located, and throwing this
container to the side. The container must be thrown in such a manner as to avoid it getting tangled in the paraglider.
After the container is thrown and reaches full line extension, it is released from the deployment bag, and the rescue
parachute will inflate due to airflow.
CONSTRUCTION and ASSEMBLY
Container (Deployment bag):
The container accommodates the folded canopy and lines. The release handle is attached to the container. The
release handle can be connected to the centre or side of the container, and must be attached according to the type of
harness or external container. The container has four flaps and is locked in a two-stage deployment closure using a
internal “5th flap” made with a bungee cord.
WARNING — Use of this parachute with any alternative inner container:
the speed of opening and opening shock test has been completed using the inner container supplied.
Use of any other inner container may produce different results (including failure)
Canopy and lines:
The canopy with an area of 25 m2 is made of nylon. The canopy is square in shape and has 16 shroud lines and an
additional four “apex” lines, All 20 lines are permanently sewn into the canopy. The shroud line material is Dyneema,
which has excellent mechanical properties, but is sensitive to high heat and the centre lines are nylon. Do not expose
your reserve parachute to extreme temperatures, chemicals or moisture.
Bridle:
The single bridle is made from Dyneema, and is protected with a Teflon sheath to reduce the chances of damage due
to friction generated during opening. It is essential that any larks head knots used are pulled tight, and locked in this
position with silicon stretch insulation tape (or similar inert stretch wrap tape).