CANOPY, RINGSAILA canopy com-
posed of concentric rings installed on a
spherical surface. The slots that are contained in
the gores are in the form of a crescent. See also
CANOPY, RING SLOTA canopy com-
posed of concentric cloth strips with intervening
air slots. The number of slots will vary with the
diameter of the canopy. See also CANOPY.
CANVASA heavy, closely-woven cloth of
linen, cotton, or synthetic fiber.
CASING (SLEEVE)The outer woven cover
of the suspension line.
CAUTIONIndicates danger to equipment.
The caution precedes the step or item to which
CcMAbbreviation for cubic centimeters per
CDIAbbreviation for collateral duty
CHANNEL, CANOPYThe space or open-
ing formed by the overlapping of cloth in making
of radial seams. The suspension lines pass through
the channels and are retained in position. The
channels aid in transmitting load from the lines
to the cloth.
CHUTEAbbreviated slang form of
CLAMP, DUAL HOUSINGA metal clamp
located on the outside of the end flap of back-
and seat-type parachutes. The clamp secures the
ripcord and power cable to the container end flap.
CLEVISA U-shaped metal fitting with a
hole in each end to receive a pin or bolt.
CLIPA device that fastens, holds together
or retains; for example, the clip that is tacked to
a riser and holds the ripcord housing in place.
CLOTH, CANOPYThe cloth used in
parachute canopies. It is woven to withstand the
impact of air pressure when the parachute opens.
The canopy cloth is woven from nylon yarns,
usually in a ripstop weave. See also CANOPY.
(Ref. MIL-C-7020, Cloth, Nylon, Parachute.)
CLOTH, NYLON RIP-STOPA type of
nylon cloth used in canopy manufacture. The
weave pattern of the nylon cloth consists of
reinforced ribs, in both the warp and the filling,
forming a uniform pattern of squares. The cloth
is designed to keep hole damage to a minimum
when rips or tears develop in the canopy.
CLOVERLEAF HANDLEA ripcord
handle that is used on chest- and integrated back-
type parachutes. It is shaped in the form of a
CO2Abbreviation for carbon dioxide.
COLLAR, VENTA strip of nylon cloth.
One edge is sewn to the vent hem of the canopy
so that a collar or cylinder is formed above the
top of the parachute. The other edge is hemmed
to form a channel for the insertion of a molded
C O M B U S T I B L E M A T E R I A L / S U B-
STANCEAny material or substance capable
of burning in the presence of oxygen. See also
EXPLOSIVE MIXTURE, FLAMMABLE
COMLAbbreviation for commercial. Refers
to parts that are commercially available.
COMPONENTItem of equipment making
up part of an assembly; for example, a ripcord
housing is a component part of a ripcord
CONE, LOCKINGA small, smooth, cone-
shaped metal post sewn to the flaps of the
container or inside the vane-type pilot parachute.
The cone has a horizontally drilled hole a short
distance from the top to admit a temporary
locking pin or the ripcord pin. The pilot parachute
locking cone contains two holes. The flange
contains holes for securing purposes.
CONFIGURATIONThe makeup, size,
shape, and relative location of parts of an item
of equipment and its accessories. This includes the
composition of the materials as well as marking
details. The configuration of each equipment is
specified by Government drawings, military
specifications and modification instructions.
CONFLUENCE POINTA coming or
running together of two or more lines.