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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.
Revision A7
P/N 13772-001 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
has been removed before further flight.
Deployment Characteristics
When the rocket launches, the parachute assembly is extracted
outward due to rocket thrust and rearward due to relative wind. In
approximately two seconds the parachute will begin to inflate.
When air begins to fill the canopy, forward motion of the airplane will
dramatically be slowed. This deceleration increases with airspeed but
in all cases within the parachute envelope should be less than 3 g’s.
During this deceleration a slight nose-up may be experienced,
particularly at high speed; however, the rear riser is intentionally
snubbed short to preclude excessive nose-up pitch. Following any
nose-up pitching, the nose will gradually drop until the aircraft is
hanging nose-low beneath the canopy.
Eight seconds after deployment, the rear riser snub line will be cut and
the aircraft tail will drop down into its final approximately level attitude.
Once stabilized in this attitude, the aircraft may yaw slowly back and
Revision A7
7-104 P/N 13772-001
Section 7 Cirrus Design
Airplane Description SR22
forth or oscillate slightly as it hangs from the parachute. Descent rate
is expected to be less than 1700 feet per minute with a lateral speed
equal to the velocity of the surface wind. In addition, surface winds
may continue to drag the aircraft after ground impact.
• Caution •
Ground impact is expected to be equivalent to touchdown
from a height of approximately 13 feet. While the airframe,
seats and landing gear are designed to accommodate this
stress, occupants must prepare for it in accordance with the
CAPS Deployment procedure in Section 3 - Emergency
Procedures.
• Note •
The CAPS is designed to work in a variety of aircraft attitudes,
including spins. However, deployment in an attitude other than
　
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