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- From: belboz@frc2.frc.ri.cmu.edu (Barry Brumitt)
- Newsgroups: rec.skydiving,news.answers
- Subject: rec.skydiving FAQ (Frequently Asked Questions)
- Summary: This posting contains a list of Frequently Asked Questions
- (and their answers) about skydiving, learning to skydive, and
- the newsgroup rec.skydiving. It should be read by anyone
- intersted in the sport of skydiving and before posting to
- the rec.skydivi
- Message-ID: <BELBOZ.92Dec13123659@hoe.frc.ri.cmu.edu>
- Date: 13 Dec 92 17:36:59 GMT
- Article-I.D.: hoe.BELBOZ.92Dec13123659
- Sender: news@cs.cmu.edu (Usenet News System)
- Reply-To: belboz@ri.cmu.edu
- Followup-To: rec.skydiving
- Organization: Field Robotics Center, CMU
- Lines: 472
- Approved: news-answers-request@MIT.Edu
- Nntp-Posting-Host: hoe.frc.ri.cmu.edu
-
-
- Archive-name: skydiving-faq
- Last-modfied: 1992/12/12
-
-
-
- Rec.Skydiving F.A.Q. Sheet
- =-=-=-=-=-=-==-=-=-=-=-=-=
-
-
- PARACHUTE : An aerodynamic deceleration device.
- (Federal Aviation Administration)
-
-
- This posting constitutes a dynamic compilation of Frequently
- Asked Questions concerning the sport of skydiving, related activities,
- and the news group rec.skydiving. It is posted on or about the second
- Monday of every month.
-
- Additions, corrections, or suggestions can be posted or emailed to
- belboz@frc2.frc.ri.cmu.edu. The original version was written by
- jerrys@umiacs.umd.edu, who is currently too busy to maintain it.
-
- First, the news group rec.skydiving is an unmoderated group for
- the discussion of issues relating to sport skydiving. It obviously
- is not limited to skydiving as there are many sports that share
- technology, history, common interests, and avid proponents; but these
- tend to be minor distractions for the hard core jumper:-). News or
- events to be held, or post-event reviews are commonly posted, as are
- questions about equipment, skills, regulations, theory, etc. And plain
- ol' reminiscing over "the good ol' days" by the old timers, and long
- exuberent descriptions of newcomer's first jumps are posted here as well.
-
- Skydiving is not just a sport, it's a lifestyle (not to be confused
- with bungee jumping which is just a sport:-)
-
- It seems there are a great many new readers every year of rec.skydiving,
- many of which stumbled across it and found it interesting
- but have never jumped. After a time, they seem to always ask the same
- questions. So in an effort to promote the sport, minimize redundant
- postings, and in general continue the comaraderie of fellow free spirits
- here is now the "Rec.Skydiving F.A.Q. Sheet". If your question is not
- answered in this document, please feel free to post it to the net. If
- we get tired of answering it (:-), we'll append it to the FAQ sheet.
- The information disseminated in this FAQ sheet is generally related
- to the sport within the United States. However, much of the information
- is applicable world wide as well. If you need specifics for a given
- geographical area, post it. Someone from that region can then reply.
-
- The questions are not ordered in their "asking frequency". Instead,
- I have tried to order them so as to provide the information in a more
- easily understood manor.
-
- The Most Frequently Asked Questions are:
-
- -. How does one learn to skydive?
- -. What are the physical requirements?
- -. What does the training consist of?
- -. How do I tell a good Drop Zone from poor one?
- -. What if my parachute doesn't open?
- -. How hard is the landing?
- -. How much does it cost?
- -. How do you breathe in freefall?
-
- Other Information provided in this file are:
- -. Appendix of abbreviations
- -. Information about rec.skydiving FTP/archive site.
- -. Disclaimer
-
-
-
-
- -. How does one learn to skydive?
- ------------------------------
-
- One looks in the telephone directory (Yellow Pages) under "Parachuting" or
- "Skydiving and Parachute Jumping Instructions" to find a local parachuting
- operation - normally referred to as a "drop zone" (DZ). A phone call will
- generally provide you with enough information to make arrangements to
- attend the First Jump Course and/or how to reach the DZ. You can also
- call the United States Parachute Association (USPA, 1440 Duke St.,
- Alexandria, VA 22314) at (703)-836-3495 to get the name of an affiliated
- drop zone in your area. A friend or acquaintance who has jumped
- previously may also be able to give you a recommendation.
-
- Most DZs will offer the First Jump Course (FJC) at least once
- each weekend. Some will offer it during the week or several times
- during the weekend. You will need to contact your local DZ to determine
- their scheduling. The FJC consists of about 4-6 hours of ground
- school followed by your jump - weather permitting.
-
- There are several different types of training you can take: Static Line,
- Accelerated Freefall, or Tandem. They are described below in greater
- detail. However, not all drop zones offer all these options, so you
- should ask the DZ which type(s) of training they provide.
-
- Some drop zones have promotional videos they will sell you (~$10) that
- describe the training and show you what it is all about. Almost every
- DZ these days use videos for training aids and will be glad to let
- you view them (for free!) if you stop by. They will mail you a brochure
- and other detailed information upon request as well.
-
- It is *your* safety at stake and *your* responsibility to look after it.
- If you have reservations about making your first jump, make the effort
- to visit the DZ, check it out, meet the people and staff. They will be glad
- to see you, and you will be *much* more confident and comfortable having
- done so, and consequently have a much better time!
-
-
- -. What are the physical requirements?
- -----------------------------------
-
- In general, the prospective student should be in reasonably good physical
- shape, this *is* a sport after all. You will be required wear 35 lbs of
- equipment, endure opening shock, maneuver the canopy, land, and possibly
- trudge great distances on foot. You will experience30 degree swings in
- temperature, atmospheric pressure changes, 4 hours of lecture, and lots of
- beer. It's grueling (:-).
-
- But seriously, problems may arise where a prospect is too heavy (over
- ~250lbs/110kg) or if they have medical conditions which may impair them during
- the activity. Someone who experiences faintingspells, blackouts, or has a
- weak heart should not be jumping. Someone withrespiratory illness *may* have
- a problem due to atmospheric changes at altitude.The better your physical
- condition, the more you will enjoy the experience. This being said, very few
- people have medical or physical conditions which actually preclude jumping.
-
- Most dropzones will try to work with you. If you have a question,
- ask them, and as always, ask your doctor. You may be surprised at
- the relatively few physical constraints involved.
-
-
- -. What does the training consist of?
- ----------------------------------
-
- The FJC teaches the student every thing they need to know to safely
- make their first jump. There are several different programs
- available for first jumpers, the one you choose will depend on your
- personal preferences and circumstances. The differences of each is
- summarized below:
-
- Static Line (S/L)
-
- This method has evolved over the last ~30 years from its military
- origins into a successful method for training sport parachutists.
- The student gets 4-5 hours of ground training and is then taken to
- an altitude of 3000 feet for the jump. The jump itself consists of
- a simple "poised" exit from the strut of a small single engine
- Cessna aircraft. As the student falls away from the plane, the main
- canopy is deployed by a "static line" attached to the aircraft.
- The student will experience about two to three seconds of falling
- as the parachute opens.
-
- Subsequent S/L jumps consist of about 15 minutes of preparation.
- After 2 good static line jumps, the student will be trained to pull
- their ripcord for themselves. The student then does 3 more static
- line jumps where they demonstrate this ability by pulling a dummy
- ripcord as they leave the plane (the static line is still initiating
- the deployment). The student is then cleared to do their first
- actual freefall.
-
- The first freefall is a "clear & pull", where the student initiates the
- pull sequence immediately upon leaving the aircraft. Next is a 5 second
- delay jump. Subsequent jumps go to progressively higher altitudes with
- longer delays. After 20 freefalls, and meeting certain other basic
- requirements, the student receives their A license and is cleared off
- student status.
-
- Accelerated Free Fall (AFF)
-
- The AFF program was instituted in 1982 as an "accelerated" learning
- process as compared to the traditional static line progression. The
- AFF program will give you a true taste of modern sport skydiving.
-
- The ground training is a bit more extensive than S/L (~5 hours)
- because the student will be doing a 50 second freefall (that's right!)
- on his/her very first jump. The student will exit the aircraft at
- 10,000-12,000 feet along with two AFF Jumpmasters (JM) who will
- assist the student during freefall. The jumpmasters maintain grips
- on the student from the moment they leave the aircraft until opening,
- assisting the student as necessary to fall stable, perform practice
- ripcord pulls, monitor altitude, etc. The student then pulls his/her
- own ripcord at about 4000 ft.
-
- The AFF program is a 7 level program. Levels 1, 2, & 3 require two
- freefall Jumpmasters to accompany the student. These dives concentrate
- on teaching basic safety skills such as altitude awareness, body position,
- stability during freefall and during the pull sequence, and most
- importantly- successful ripcord pull. On level 3, the JMs will
- release the student in freefall for the first time, to fly completely on
- their own.
-
- Levels 4, 5, 6, & 7 require only one freefall JM (less $$) and teach
- the student air skills such as turns, forward movement and docking on
- other people, frontloops, backloops, "superman" exits from the plane,
- etc.
-
- Each AFF level is designed to take one jump, and requires about
- 45 minutes of training. After successfully performing the objectives
- of each level, the student moves on to the next level.
-
- After graduating Level 7, the student enters a more free format stage
- called "Level 8" where they practice and hone their skills by themselves
- and in small groups until they obtain 20 freefalls and qualify for their
- A license.
-
- Tandem jumps.
-
- Tandem jumps are meant to offer an introduction to the sport. They allow the
- neophyte to "take a ride" with an experienced jumper. A tandem
- jump requires from 15 to 45 minutes of ground preparation (it is not
- actually a First Jump Course). It consists of an experienced jumper
- called a "tandem master" (or pilot) and the student (or passenger).
- The passenger and pilot each wear a harness, however only the pilot
- wears the parachutes. The student's harness attaches to the front of
- the pilot's harness and the two of them freefall *together* for 30
- seconds, open together, and land together under one Really_BIG_Parachute.
-
- Tandems are particularly advantageous to the adventurous spirit who cannot
- adequately meet the physical or proficiency requirements for the S/L
- or AFF jumps. They can hop aboard a tandem!
-
- Because the tandem training is not a First Jump Course, if you decide to
- pursue the sport, you will still have to attend a FJC.
-
-
- In all of these training methods, students are taught normal and emergency
- procedures for all aspects of the jump - climb to altitude, exit, opening,
- canopy control, and landing. They are also shown the equipment and go
- over it so that they understand how it works.
-
- Nearly all student training centers now utilize *sport* skydiving gear.
- No more military surplus stuff. Students have light-weight harness/container
- systems in aesthetic colors, high performance canopies designed for
- students. No more paraboots- students use their own tennis shoes. No
- more heavy motorcycle helmets- students use lightweight sporting helmets.
- Ground-to-air radio for canopy control assistance, air-to-air video, on
- and on...
-
-
- -. How do I tell a good Drop Zone from poor one?
- ---------------------------------------------
-
- Most dropzones that provide regular student training are "USPA Affiliated".
- The United States Parachute Association (USPA) is the representative body
- for sport parachuting within the US, and a member of the FAI (the
- international equivalent). The USPA defends the sport's interests before
- the FAA and other regulating/lawmaking bodies at all levels of government.
- It also develops and monitors safety and training doctrine for the sport.
- Other benefits include liability insurance for students and DZs in the
- case of damage to property, the monthly magazine "Parachutist", etc.
-
- The USPA has had tremendous success instituting rating programs
- for Jumpmasters, Instructors, and Instructor-Examiners to ensure that
- only properly trained and qualified personnel work with students. You
- should insist on USPA Instructors and Jumpmasters.
-
- USPA affiliation is not required, and does not *guarantee* a DZ to be a
- "good" DZ, and non-affiliation does not mean the DZ is "bad". However,
- the USPA, through their diligence and caution, has compiled an
- excellent safety record over the years.
-
- These are just guidelines. You should always check it out before
- you jump.
-
-
- -. What if your parachute doesn't open?
- ------------------------------------
-
- Clearly, this is the most Frequently-Asked-Question posed by
- all prospective jumpers.
-
- By law (FAA regulations), all intentional parachute jumps must be made
- with a single harness, dual parachute system with both a
- main canopy *AND* a reserve canopy. In other words, you have a second
- (or spare) canopy in case the first one fails to open properly.
-
- However, it must be noted that the technology utilized in today's sport
- parachuting equipment is light years ahead of the old military surplus
- gear used in the '60s and '70s. The canopies are DRASTICLY different from
- the classic G.I. Joe round parachutes. The materials are stronger, lighter
- and last longer, the packing procedures are simpler, the deployment
- sequence is much more refined, etc.
-
- The reserve canopies are even more carefully designed and packed. The
- reserve parachute must be inspected and repacked every 120 days by an
- FAA rated parachute Rigger - even if it has not been used during that time.
-
- The student's main canopy is always packed either by a rigger or under
- a rigger's direct supervision by experienced packers.
-
- There are also additional safety features employed to ensure canopy
- deployment such as Automatic Activations Devices (AAD) and Reserve
- Static Lines (RSL) which add still more layers of safety.
-
-
- -. How much does it cost?
- ----------------------
-
- Prices vary from DZ to DZ. Typically, the S/L course runs ~$110-$140,
- AFF from $250-$300, and the tandem from ~$140-$200. Some DZs can provide
- a freefall videoman to tape the whole exciting experience for $50-75.
- These prices include the ground school and the first jump.
-
- After completing their first jump, skydiving tradition allows each
- student to express their appreciation and admiration for their newfound
- skydiving friends for their assistance in successfully achieving this
- milestone in their life by purchasing (from a local establishment) and
- presenting to them a case of beer. This case, customarily a fine
- imported beer, is ceremoniously iced down for consumption at the end of
- the day. The cost generally runs $15-20.
-
- (It should be noted that while jumpers have a reputation for major
- no-holds-barred parties, the use of drugs and/or alcohol on the DZ
- premises is *strictly* prohibited during jump operations for what should
- be obvious reasons. This rule is observed and enforced by both jumpers
- and management.)
-
- After the first jump, the cost of each successive jump decreases in
- stages as less supervision is required. Once off student status, and
- owning your own gear, jumps will cost about $15-17 to 13,000' (about
- 65 seconds of freefall). Many drop zones have discount programs as well
- that can further decrease the cost of jumps.
-
- Equipment can run from $1000 to $3500 depending on what you want to
- spend. There is a used equipment market (much like the used car market)
- which can SAVE you loads of money, or you can custom order everything
- brand-spankin-new with your own personalized colors and sizes, which
- will COST you loads of money(:-). You can buy it all at once or
- a piece at a time as finances allow. Generally, you shouldn't worry
- about buying gear until you are off student status or close to your
- A license.
-
- Of course, all prices are in US dollars (as opposed to dinars or rubles:-).
-
-
- -. How hard is the landing?
- ------------------------
-
- The canopies used today bear little resemblance to the classic round
- canopies of years gone by. Today, nearly all jumpers and jump schools
- use "square" canopies for parachuting. These canopies are actually
- rectangular in shape, and when open, act like an airplane wing (or
- an airfoil). They are more like gliders than umbrellas.
-
- The aerodynamics of the square canopy provide it with exceptional
- maneuverability, allowing the jumpers to land almost anywhere
- they wish. This wing shape also provides tippy-toe soft
- landings for even the novice jumper. The days of landing like a sack
- of flour are history. Most students land standing up on their first jump.
-
-
- -. How do you breathe in freefall?
- ------------------------------
-
- This falls into the realm of urban folklore. One CAN breathe in
- freefall - if it were necessary. However, due to the high
- speed of terminal freefall (and much higher speeds in vertical
- freefall dives), the jumper's body is exposed to O2 molecules at
- a much higher rate than someone walking around on the ground.
- The body is able to absorb the necessary O2 through the skin. This is
- why jumpers flap their cheeks in freefall, it presents a larger surface
- area to the airstream for oxygen osmosis. Once under canopy, the
- jumper resumes breathing normally. (:-)
-
- This is also why jumpers do not jump on cloudy days or when they
- might risk going through clouds. The moisture in the clouds can
- condense on their exposed skin surfaces preventing the absorption of the
- necessary oxygen resulting in suffocation. AADs are recommended for
- jumpers in climates where weather is a factor.
-
- (:-)
-
-
- -. Appendix of Skydiving Abbreviations, Terms, and Coloquialisms
- -------------------------------------------------------------
-
- AAD Abbrev. n, "Automatic Activation Device". A altitude sensing
- device used to automaticly activate the opening sequence
- for a parachute. Most commonly refers to their application
- to sport reserve parachutes, but also used in other non-sport
- scenarios such as ejection seats, etc.
-
- AFF Abbrev. n, "Accelerated FreeFall". A training program for first
- jump students where the skydiving skills development rate is
- accelerated over that of the older static line program.
-
- 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 Coloquialism v, term for landing, after freefall, without the aid
- of a parachute. Also: hammer in, frapp, go in.
-
- CRW Abbrev., "Canopy Relative Work". Describes the manuvering done
- by jumpers *under canopy* to fly their parachutes together to
- form various formations. Sometimes referred to as CReW (Crew).
-
- DZ Abbrev. 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.
-
- JM Abbrev. n, "JumpMaster". A jumper trained and certified to
- supervise students and/or novices during their jump.
-
- main n, the primary parachute.
-
- opening shock n, The force experienced by the jumper due to the sudden
- deceleration from terminal velocity due to the deployment of a
- parachute.
-
- RW Abbrev., "Relative Work". Describes the freefall maneuvering
- whereby two or more jumpers fly relative to each other *in freefall*
- in order to form various formations.
-
- reserve n, the secondary, or backup, parachute.
-
- round n, a class of parachutes designed to simply decelerate a
- body in a fluid medium. The classic parachute.
-
- square n, a class of parachutes designed to inflate and take the shape
- of an airfoil. These are more accurately rectangular in
- shape and are semi-rigid wings.
-
- USPA Abbrev. n, "United States Parachute Association".
-
- whuffo Coloquialism, n, A person who is not a skydiver (from the
- often-asked phrase "Whuffo you jump out of them airplains?"
-
-
- -. rec.skydiving FTP site and archive.
- -----------------------------------
-
- There is an FTP site for rec.skydiving located on skydive.eng.ufl.edu
- (128.227.116.1) which contains:
- 1. Most recent FAQ
- 2. Archive of all rec.skydiving messages since Sept. 1992.
- 3. DZ reviews
- 4. A collection of skydiving GIF's.
-
- This sites accepts anonymous FTP's, and the information can be found
- in the skydive/ directory. Questions and comments cocerning this site
- can be directed to the FTP site maintainer esj@foobar.eng.ufl.edu.
-
-
- -. Disclaimer.
- -----------
-
- All information provided herein is offered on an "as is" basis. There
- is no warrenty expressed or implied concerning it's applicability or
- fitness for any particular purpose. Consult a trained professional
- before attempting any of the activities described in this document; it
- is not intended to be a substitute for proper professional instruction.
-
- -------- End ---------
- Rec.Skydiving F.A.Q. Sheet
-
-
-
-
-
- --
- Barry Brumitt belboz@frc2.frc.ri.cmu.edu
- RI Graduate Student (or) bb1v@andrew.cmu.edu
- Field Robotics Center Phone: (412) 268-7144
- Carnegie Mellon University "Who is John Galt?" $ Skydive!
-
- Boring Disclaimer: The opinions contained herein do not necessarily
- =-=-=-=-=-=-=-=-= represent those of the FRC, SCS, RI or even CMU.
-