Misplaced Pages

Skandalopetra diving

Article snapshot taken from Wikipedia with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.
(Redirected from Skandalopetra) Freediving using a stone weight at the end of a rope to the surface

Skandalopetra diving (Greek: σκανταλόπετρα) dates from ancient Greece, when it was used by sponge fishermen, and has been re-discovered in recent years as a freediving discipline. It was in this discipline that the first world record in freediving was registered, when the Greek sponge fisherman Stathis Chantzis dived to a depth of 83 m (272 ft) in July 1913. It consists of a variable ballast dive using a skandalopetra tied to a rope. A companion on a boat recovers the diver by pulling the rope up after the descent, and keeps a watch on the diver from the surface.

Origins

A skandalopetra dive known to contemporary divers is that of Stathis Chantzis, a Greek sponge fisherman. On 14 July 1913, in the Karpathos port, Chantzis recovered the lost anchor of the Regina Margherita, a ship of the Italian Navy, at the depth of 83 m. His feat is considered the first depth record in apnea diving.

The skandalopetra, or simply petra (πέτρα), is a stone, usually of marble or granite, weighing between 8 and 14 kg, with rounded corners and hydrodynamic shape. It was the only tool used by divers, since the time of Alexander the Great. The fishermen, naked, were secured to the stone with a thin cord. The skandalopetra itself was secured to the boat with the same rope. This link allowed fishermen to dive safely for centuries.

Competitive

In recent times skandalopetra diving has become a discipline of competitive apnea. It is a team sport — the only true team event in freediving. Teams are formed by two athletes: one is the diver (βουτηχτής, voutichtis) and the other is the rope tender (κολαουζέρης, kolaouzeris). In modern skandalopetra competition, divers are allowed the use of a noseclip, but other equipment such as a wetsuit, mask or fins is not allowed.

In this discipline, there is no waste of energy, and activity is comparable to the descent in variable weight apnea diving. The athlete prepares for the dive while on the boat, holding the stone, then dives, remaining motionless and as vertical as possible. After reaching the maximum depth of the dive, the diver moves their feet onto the stone and is pulled to the surface by their companion. It is essential that the diver and assistant are co-ordinated; the latter should at all times know the depth of the diver, feel when they slow down to equalize, leaving the stone when it arrives at the bottom, and finally when it is the right time to pull the diver back up. During the descent the diver can handle the stone in different ways, serving as a drag brake, to steer, and as a ballast.

AIDA's no limits discipline is in a sense a contemporary version of skandalopetra diving; instead of a rock the diver uses a weighted sled running down a shotline, and the line attendant is replaced by inflated lifting bags.

See also

  • Ama – Japanese pearl divers
  • Haenyeo – Female divers of Jeju, South Korea
  • Sponge diving – Diving to gather natural sponges

References

  1. ^ "Introducing… Skandalopetra - Freedive Earth". www.freedive-earth.com. Retrieved 2018-08-26.
  2. ^ "Everything Old is New Again - Skandalopetra – DeeperBlue.com". DeeperBlue.com. 2010-07-09. Retrieved 2018-08-26.
  3. ^ "Skandalopetra". Recreation Rehabilitation Tauchclub Wien.
  4. ^ "Kalymnos Skandalopetra Unique Diving Festival". Eco Global Society. July 3, 2012.
  5. "Apnea Catalunya | Skandalopetra". www.apneacatalunya.com. Retrieved 2018-08-26.
  6. scubalife. "Skandalopetra – ronite na dah poput antičkih spužvara". SCUBAlife (in Croatian). Retrieved 2018-08-26.

External links

Underwater diving
Diving equipment
Basic equipment
Breathing gas
Buoyancy and
trim equipment
Decompression
equipment
Diving suit
Helmets
and masks
Instrumentation
Mobility
equipment
Safety
equipment
Underwater
breathing
apparatus
Open-circuit
scuba
Diving rebreathers
Surface-supplied
diving equipment
Diving
equipment
manufacturers
Diving support equipment
Access equipment
Breathing gas
handling
Decompression
equipment
Platforms
Underwater
habitat
Remotely operated
underwater vehicles
Safety equipment
General
Freediving
Activities
Competitions
Equipment
Freedivers
Hazards
Historical
Organisations
Professional diving
Occupations
Military
diving
Military
diving
units
Underwater
work
Salvage diving
Diving
contractors
Tools and
equipment
Underwater
weapons
Underwater
firearm
Recreational diving
Specialties
Diver
organisations
Diving tourism
industry
Diving events
and festivals
Diving safety
Diving
hazards
Consequences
Diving
procedures
Risk
management
Diving team
Equipment
safety
Occupational
safety and
health
Diving medicine
Diving
disorders
Pressure
related
Oxygen
Inert gases
Carbon dioxide
Breathing gas
contaminants
Immersion
related
Treatment
Personnel
Screening
Research
Researchers in
diving physiology
and medicine
Diving medical
research
organisations
Law
History of underwater diving
Archeological
sites
Underwater art
and artists
Engineers
and inventors
Historical
equipment
Diver
propulsion
vehicles
Military and
covert operations
Scientific projects
Awards and events
Incidents
Dive boat incidents
Diver rescues
Early diving
Freediving fatalities
Offshore
diving
incidents
Professional
diving
fatalities
Scuba diving
fatalities
Publications
Manuals
Standards and
Codes of Practice
General non-fiction
Research
Dive guides
Training and registration
Diver
training
Skills
Recreational
scuba
certification
levels
Core diving skills
Leadership skills
Specialist skills
Diver training
certification
and registration
organisations
Commercial diver
certification
authorities
Commercial diving
schools
Free-diving
certification
agencies
Recreational
scuba
certification
agencies
Scientific diver
certification
authorities
Technical diver
certification
agencies
Cave
diving
Military diver
training centres
Military diver
training courses
Underwater sports
Surface snorkeling
Snorkeling/breath-hold
Breath-hold
Open Circuit Scuba
Rebreather
Sports governing
organisations
and federations
Competitions
Underwater divers
Pioneers
of diving
Underwater
scientists
archaeologists and
environmentalists
Scuba record
holders
Underwater
filmmakers
and presenters
Underwater
photographers
Underwater
explorers
Aquanauts
Writers and journalists
Rescuers
Frogmen
Commercial salvors
Science of underwater diving
Diving
physics
Diving
physiology
Decompression
theory
Diving
environments
Classification
Impact
Other
Deep-submergence
vehicle
Submarine rescue
Deep-submergence
rescue vehicle
Submarine escape
Escape set
Special
interest
groups
Neutral buoyancy
facilities for
Astronaut training
Other
Categories: