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rocket flight path is upward from the parachute
cover. Stay clear of parachute canister area when aircraft is
occupied. Do not allow children in the aircraft unattended.
System Description
The CAPS consists of a parachute, a solid-propellant rocket to deploy
the parachute, a rocket activation handle, and a harness imbedded
within the fuselage structure.
A composite box containing the parachute and solid-propellant rocket
is mounted to the airplane structure immediately aft of the baggage
compartment bulkhead. The box is covered and protected from the
elements by a thin composite cover.
The parachute is enclosed within a deployment bag that stages the
deployment and inflation sequence. The deployment bag creates an
orderly deployment process by allowing the canopy to inflate only after
the rocket motor has pulled the parachute lines taut.
The parachute itself is a 2400-square-foot round canopy equipped with
a slider, an annular-shaped fabric panel with a diameter significantly
less than the open diameter of the canopy. The slider has grommets
spaced around its perimeter. The canopy suspension lines are routed
through these grommets so that the slider is free to move along the
suspension lines. Since the slider is positioned at the top of the
suspension lines near the canopy, at the beginning of the deployment
June 2007
7-102 Information Manual
Section 7 Cirrus Design
Airplane Description SR22
sequence the slider limits the initial diameter of the parachute and the
rate at which the parachute inflates. As the slider moves down the
suspension lines the canopy inflates.
A three-point harness connects the airplane fuselage structure to the
parachute. The aft harness strap is stowed in the parachute canister
and attached to the structure at the aft baggage compartment
bulkhead. The forward harness straps are routed from the canister to
firewall attach points just under the surface of the fuselage skin. When
the parachute deploys, the forward harness straps pull through the
fuselage skin covering from the canister to the forward attach points.
Activation Handle
CAPS is initiated by pulling the CAPS Activation T-handle installed in
the cabin ceiling on the airplane centerline just above the pilot’s right
shoulder. A placarded cover, held in place with hook and loop
fasteners, covers the T-handle and prevents tampering with the
control. The cover is be removed by pulling the black tab at the forward
edge of the cover.
Pulling the activation T-handle will activate the rocket and initiate the
CAPS deployment sequence. To activate the rocket, two separate
events must occur:
1. Pull the activation T-handle from its receptacle. Pulling the Thandle
removes it from the o-ring seal that holds it in place and
takes out the slack in the cable (approximately two inches (5 cm)
of cable will be exposed). Once the slack is removed, the T-handle
motion will stop and greater force will be required to activate the
rocket.
2. Clasp both hands around activation T-handle and pull straight
downward with a strong, steady, and continuous force until the
rocket activates. A chin-up type pull works best. Up to 45.0 pounds
(20.4 Kg) force, or greater, may be required to activate the rocket.
The greater force required occurs as the cable arms and then
releases the rocket igniter firing pin. When the firing pin releases,
two primers discharge and ignite the rocket fuel.
June 2007
Information Manual 7-103
Cirrus Design Section 7
SR22 Airplane Description
• Note •
Jerking or rapidly pulling on the activation T-handle greatly
increases the pull forces required to activate the rocket.
Attempting to activate the rocket by pushing the activation Thandle
forward and down limits the force that can be applied.
Pulling the activation T-handle straight down generates the
greatest force.
A maintenance safety pin is provided to ensure that the activation
handle is not pulled during maintenance. However, there may be some
circumstances where an operator may wish to safety the CAPS
system; for example, the presence of unattended children in the
airplane, the presence of people who are not familiar with the CAPS
activation system in the airplane, or during display of the airplane.
The pin is inserted through the handle retainer and barrel locking the
handle in the “safe” position. A “Remove Before Flight” streamer is
attached to the pin.
• WARNING •
After maintenance has been performed or any other time the
system has been safetied, operators must verify that the pin
　
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本文鏈接地址：AIRPLANE INFORMATION MANUAL for the CIRRUS DESIGN SR22(87)