| Control Lever |
| A vertical lever used to control the fore-and-aft and lateral movements of the aeroplane. Also called the "joystick" or "stick" |
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| Control Wires |
| Wires connecting the rudder bar and control lever to their respective control surfaces |
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| Cordage |
| Rope and twine of which a balloon's rigging is composed. |
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| Cowl |
| A sheet metal cover generally fitted over or around the engine |
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| Crash |
| To smash the aeroplane into the ground |
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| Crash Helmet |
| A helmet specifically designed to protect the pilot's head in the event of a crash |
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| Crows foot |
| A patch in the shape of a crow's foot, whereby a rope is joined to the balloon's fabric. |
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| Cure |
| The crystallization of a chemical when mixed with rubber which causes it to take a fixed form. |
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| Dihedral Angle |
| An aeroplane is said to possess a dihedral angle when it wings rise upward from the centre of the machine |
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| Dive |
| To descend an aeroplane steeply |
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