Here's a bit of fun for those of you
who are contemplating skydiving. While the terminology is
real and valid, the answers are both entertaining and
informational. This is just to help bring a bit of levity to
the world of the cyber-skydiver. Although, this does not in
any way diminish the seriousness of skydiving, we are human,
and like to laugh too. If you would like to see some real
answers to questions like these, go to our
FAQ page.
AAD
Abbr. n; "Automatic
Activation Device". A mechanical or electronic device which
automatically opens the main or reserve parachute at a set
altitude as a back up for the user. Usually used for student
and experienced jumper's Reserves.
AFF
Abbr. n; "Accelerated
Freefall". The most advanced method of learning to skydive.
A 7 Level ability based learning progression. It is the
course that is accelerated, not the speed of the Freefall.
You have a Terminal Velocity of about 120 mph in freefall
which ever type of course you choose!
AFF JCC
Abbr.; "Accelerated Freefall
Jumpmaster Certification Course". This is the Certification
Course that must be successfully completed in order for a
skydiver to be an USPA Accelerated Freefall Jumpmaster. Most
Jumpmasters will tell you it is the most difficult rating to
achieve in skydiving.
Altimeter
n; Looks like a clock face
with a single hand. It shows your height above the ground,
in thousand foot increments. Audible altimeters beep when
you fall through a preset altitude. These are only a backup
for a visual altimeter since if they don't work they don't
tell you that they haven't worked, or if you don't hear them
they won't remind you. Audible alti's are often used by
freefall camera people and freestylists since they cannot
look at their visual alti's as often as they'd like.
BIC
Abbr.; "Basic instructors
course". Attended in an effort to gain a sufficient level of
proficiency with reference to teaching.
Boogie
n; A gathering of jumpers for
the purposes of jumping and socializing. Typically, boogies
will have large aircraft, unusual aircraft (balloons,
helicopters), special events (record attempts), or some sort
of competition as a focal point to attract jumpers from
widely diverse regions.
Bounce
Colloquialism v; term for
landing, after freefall, without the aid of a parachute.
Also: hammer in, frappe, go in, burn in.
Canopy
n; parachute. Skydiver talk
for a 'Parachute'. See Main Parachute, Reserve Parachute,
Square Parachute, Round Parachute, and Elliptical Parachute.
Cells
n; The chambers in a ram-air
parachute, 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
airfoil, however because they have more ribs and therefore
more fabric they do not pack as small.
Chop
v; see "cut away"
CFS
Abbr.; "Canopy Formation
Skydiving". The new "official" term for a discipline of
skydiving in which jumpers *under canopy* fly their
parachutes together to form various formations. However,
most skydivers still refer to it as "CRW". (See CRW.)
Container
n; The part of a Rig which
contains the Main and Reserve Parachutes.
CRW
Abbr.; "Canopy Relative Work"
or "CReW". Describes the maneuvering done by jumpers *under
canopy* to fly their parachutes together to form various
formations. Sometimes referred to as CReW (Crew). See CFS.
Cut away
v; To release an improperly
functioning parachute, before deploying a backup parachute.
From the dark ages when parachute lines had to be literally
cut in order to release them.
Dirt Dive
n; Practicing a dive on the
ground before the jump so that all involved understand
exactly what will occur in the sky - since there is not much
time up their and you can't discuss it with a 120 mph wind
going past your head.
DZ
Abbr. n; "Drop Zone". A place
where parachuting operations take place. This is may be a
designated area, or frequently, a commercial business which
supplies aircraft, instruction, gear sales and services.
Elliptical Parachute
n; Like a Square except
elliptical rather than rectangular. These Canopies are far
more radical than Square parachutes doing 360 degree turns
in 1-2 seconds, with the Skydiver and Parachute parallel to
the ground. There are variations between Square and
Elliptical, some called Semi-Elliptical.
FAA
Abbr.; Federal Aviation
Administration: Aka. the sky police.
FAI
Abbr.; Federation
Aeronautique Internationale: The international body which
administers sport aviation throughout the world.
Fall Rate
n; The rate at which you
fall, another name for terminal velocity except that it
refers the rate relative to other jumpers, rather than an
absolute velocity. Fall rate is adjusted by adjusting body
position. Different shape and weight jumpers in exactly the
same body position will fall at different rates. Fall rate
must be adjusted to be the same as everyone else so that the
jumper can do RW.
Flare
v; to pull down on both of
the canopy's steering toggles in order to lower decent rate
and forward speed just prior to landing. The forward speed
is traded-off for lift. A flare performed too late has no
effect, a flare performed too early can result in a stall in
which the canopy looses forward speed and drops straight
down. A correctly performed flare results in an
exceptionally soft landing.
FS
Abbr.; "Formation Skydiving".
The new "official" term for a discipline of skydiving in
which two or more jumpers fly relative to each other *in
freefall* in order to form various formations. However, most
skydivers refer to it as Relative Work, or "RW." (See RW.)
Formation
n; When referring to RW a
formation is a group of skydivers forming particular pattern
by taking grips on each others arms and legs. The formations
that will be done on a jump are determined and practiced
(Dirt Dived) before the jump. When referring to CRW it is a
formation of Canopies flying together in a predetermined
configuration.
Freefly
v; A discipline of skydiving
in which the jumper falls sitting, standing, or on their
head (also known as "head down")
Grips
n; Sausage shaped things
attached to the arms and legs of a jumpsuit for skydivers to
hold on to in formations.
Hook turn
n; A high-speed turn with
either the steering toggles or the front risers performed at
very low altitude in order to build up speed before landing.
See "turf surf."
Harness
n; The part of a Rig which
consists of webbing and metal hardware which you wear and
which the Container is attached to.
ICC
Abbr.; "Instructor
certification course". The course one must attend and
successfully pass in order to obtain an instructor rating.
JM
Abbr. n; "JumpMaster". A
jumper trained and certified to supervise students and/or
novices during their jump. Main n, the primary parachute.
Main or
Main Parachute n;
The primary parachute. The parachute you use first. If it
doesn't work you use your Reserve. This happens very rarely
and there are Skydivers with thousands of jumps and no
Reserve rides. The Main parachute is usually much higher
performance than the Reserve. There are many types and
brands available, in custom colors for no extra cost if you
want, and they come in all sizes from 69 esq.. 9+ Cell
parachutes, for very small, light and/or highly experienced
Skydivers, to 280-300 sq.ft. 7 or 9 Cells that students
usually use, to 520 sq.ft. 9+ Cells for large Tandem
parachutes. These are all Square parachutes. Round
parachutes are only used as mains for special applications -
water jumps and Pilots Rigs for example.
Mal
n; Short for "malfunction",
hopefully referring only to the main parachute.
Malvina
n, Also short for
"malfunction" - "whoa!"
Malfunction
n; When the Main Parachute
doesn't work properly. There are different degrees of
malfunctions, the bad ones of which cause you to use your
Reserve.
Opening shock
n; The force experienced by
the jumper due to the sudden deceleration from terminal
velocity due to the deployment of a parachute. Also what
many skydivers experience when the window shade is opened
before 8 am.
Parachute
n; An aerodynamic
deceleration device. (Federal Aviation Administration)
Parachutist
n; A person who uses a
parachute. A Parachutist is not necessarily a Skydiver. A
Skydiver is only a Parachutist because they have to be. Note
for non-jumpers: do not call a Skydiver a Parachutist and
don't ask them about 'their Parachuting'.
Pilot
n; A person who likes planes
but usually does not jump out of them.
RW
Abbr.; "Relative Work".
Skydiver talk for Formation Skydiving where Skydivers in
Freefall link up to create formations. This can be done in
any numbers from 2-person (called a 2 Way Skydive) and up.
Competition RW is mainly done in 4 person teams (4 Way
Teams) and in 8 Ways & 16 Ways. See also FS.
Reserve or
Reserve Parachute
n; the secondary, or backup, parachute. The parachute
you use if your Main Mals. Reserve parachutes must be tested
to very strict standards & must be inspected and repacked by
a specially licensed packer at regular intervals, (every six
months in Australia), whether they have been used or not.
Reserve Ride
n; To use the Reserve
Parachute.
Round or
Round Parachute
n; A round
parachute. (We do not use these at Skydive New Mexico).
These range from non-steerable to a bit steer able and the
user is mainly at the mercy of the wind. Cannot really be
flared and give fairly hard landings. Works by providing
drag to slow the descent of the Skydiver.
SkyGod
n; We've heard about these,
but have never actually seen one. We're not sure how to
identify one properly.
Square Parachute
n; An airfoil shaped ram-air
parachute which is actually rectangular with aspect ratio's
from less that 2 up to more than 3.5. The parachute is
termed a 'semi rigid wing'. It is held in a wing shape by
the air rushing in the front, keeping it pressurized.
Squares work not by providing drag to slow the descent but
by providing lift as they fly at about a 3:1 glide angle.
They therefore must fly quite fast! and speeds up to
40-50mph in a straight line depending on the Canopy and the
weight of the Skydiver are possible. They can be flown into
the ground at in excess of 80 mph if one wants to. The most
common configurations are 7 and 9 Cells and they can be made
of porous material or non-porous Zero Porosity material.
Static Line Training
n; The type of training in
which a Static Line - a piece of webbing connected from the
airplane to the students Rig opens the parachute. Like in
the old war movies where the soldiers are hooked up and then
jump out, and their parachute opens immediately. (The static
line is like in the old war movies, the rest of the course
and the gear isn't anything like it!).
Tandem
n; The passenger and
Instructor are harnessed together and use a the same main
parachute, the student may participate as much or as little
as he or she wishes.
Terminal Velocity
n; The speed at which a
Skydiver falls when the friction of the air on their body is
equal to and counter acts the force of gravity so that they
no longer accelerate. It is about 120 mph in a flat stable
position, lying on the air, face down. The Skydiver can fall
faster or slower, up to a point, by changing their body
position.
Track
n; To track is to assume a
body position which gives a very high horizontal speed.
Turf surf
v; (also, to "surf it" or
"swoop") a high-speed style of landing. The jumper builds up
speed (see Hook Turn) and then flares mere moments before
touchdown, resulting in a spectacular landing in which the
jumper skims mere inches above the ground at 30-40mph, for
up to 100 yards. Or, if the jumper flares too late,
resulting in a spectacular landing in which the jumper
impacts the ground, leading to medical bills, orthopedic
surgery, and/or death. Attempt this maneuver at your own
risk!
USPA
Abbr. n; "United States
Parachute Association".
Whuffo
Colloquialism n; A person who is not a skydiver (from
the often-asked phrase "Whuffo you jump out of them
airplanes?").
Zero Porosity
n; "ZP/Zero-P". Means
Non-porous to air. (Not technically the correct term, but
it's the one Skydivers use). Air does not go through it
making ZP Canopies very efficient wings.
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