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| Call |
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The time remaining until you are to board the aircraft. For example, a fifteen minute call means you will board in fifteen minutes.
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| Camera Flyer |
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Freefall photographer equipped with camera(s) fastened to their helmet.
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| Canopy |
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The construction of fabric and lines used to land safely after a freefall. Modern parachutes are not round but elliptical in shape. Every jumper carries two: the main and reserve, stowed in the same container.
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| Case |
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A case of beer that needs to be distributed among the other skydivers after having performed some action that calls for a case. Almost anything, really. Don't like beer? It doesn't matter, caseing is still an important part of the skydiving culture.
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| Cell |
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Square canopies are made up of pressurized cells, usually seven or nine. Each cell consists of a load bearing rib at each side to which the suspension lines are attached. A third, non-load-bearing rib runs down the middle of the cell. The cell is pressurized through the open mouth at the front and also through cross-ports in the ribs. Adjacent cells share load-bearing ribs.
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| Cells |
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The chambers in a ram-air parachute (Square), made up of two halves. They are delimited by two load-bearing ribs and are split in two by the non-load-bearing rib in between. Most Skydiving Canopies have either 9 or 7 Cells, but they may have as few as 5 or many more than 9 and a Cell may be split into more than 2 parts. A 9 Cell Canopy is generally a more efficient wing than a 7 Cell because it has more ribs and can be a better aerofoil, however because they have more ribs and therefore more fabric they do not pack as small.
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| Chicken Soup |
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When the planned move or jump routine does not go as planned.
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| Chop |
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To jettison a canopy or skyboard for emergency reasons.
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| Chute Assis |
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Literally, "sit flying." A new alternative flying discipline in which participants freefall as though they are sitting in straight-backed chairs. The vertical position greatly increases their fall rate. Looks pretty funny when performed in formation.
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| Climb-Out |
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The act of getting into a starting position before exiting the aircraft while it is in flight.
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| Container |
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A container is the backpack a skydiver wears and holds the main parachute, reserve parachute & AAD.
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| Corking |
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A term used to describe the act of suddenly slowing down by presenting a large horizontal surface area to the relative wind. From the perspective of others who are still in the vertical (fast) posture, the "corker" appears to pop up, much like a cork held under water, then released.
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| Crabbing |
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A canopy is crabbing when it is flown at an angle sideways to the ambient wind, resulting in a path across the ground that is sideways as well as forwards.
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| Creep |
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To creep is to practice formation skydiving sequences while laying prone on a creeper.
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| Creeper |
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A board equipped with wheels on which a skydiver lays to simulate freefall maneuvers. Kind of like an Y-shaped skateboard, although larger.
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| Crw |
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Canopy Relative Work, now officially known as Canopy Formations. CRW involves flying open canopies in close formation, where the pilots actually take grips on each other's parachutes.
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| Cut |
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A command given to slow the speed of the aircraft once the spot is reached. Helps facilitate the climb-out and hang.
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| Cut Away |
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Release the main canopy in case of a malfunction. Needs to be done prior the deployment of the reserve canopy to avoid the risk of the two canopies getting entangled.
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| Cypres |
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The brand name commonly used to refer to an automatic activation device (AAD) that opens the reserve automatically if a predetermined altitude is passed at a high rate of speed.
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