It at first you don't succeed, well, so much for skydiving

A

AAD: Automatic Activation Device. A backup device supposed to start the opening sequence (usually the reserve canopy) when a skydiver is still in freefall below the preset activation altitude.

AFF: Accelerated Freefall. A specific training method of training.

APF: Australian Parachuting Association.

Audible / Ditter: are audible altimeters that sound beeps at various altitudes.

B

Belly flying: a name for the flat flying orientation in freefall

BOC: Bottom of Container

C

Circular: see Reference

Container: usually used to refer to the container that the parachute is packed into.

CRW: canopy relative work - refers to formation canopy flying

Currency: refers to how long it was since your last jump

Cut Away: The action of releasing the main parachute in an emergency

Cypres: a widely used AAD

D

DZ: Drop Zone. The place where skydivers skydive. Can be not much more than a field where an aircraft can take off and land, or something much bigger with a gym, a sauna, a swimming pool, a restaurant, bunk houses and an hotel.

E

F

Flare: The action of braking and slowing the parachute before landing

Freeflying: not Belly flying, but includes: sitflying, standflying and headdown amongst other positions.

G

H

Harness: usually refers to the webbing part of the parachute system

I

J

K

L

M

N

O

P

PLF: Parachute Landing Fall used for emergengy landings to absorb the impact force.

Q

R

Reference: see Circular

Rig: skydiving equipment. The assembly of a harness/container, a main canopy and a reserve canopy.

RSL: Reserve Static Line which pulls the reserve pin after a cut-away

RW: relative work - referring to skydivers moving relative to each other in freefall

S

SL: Static Line. A specific training method of training.

Spotting: looking out of the aircraft to determine the best place to exit the aircraft

Swoop: A prolonged landing in a flat glide

T

Throw out: a type of deployment

Tandem: two skydivers jumping together. The passenger's harness is hooked to the Jumpmaster harness. This type of jumps can be used as a specific method of training.

U

USPA: United State Parachute Association.

V

W

Wind sock: a wind direction indicator

X

Y

Z