sail
Let an agent explain sails and how they work, describe kinds and rigs, relay materials, design and safety, and distinguish sails from kites, wind turbines and other wind devices.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent explain sails and how they work, describe kinds and rigs, relay materials, design and safety, and distinguish sails from kites, wind turbines and other wind devices.
A surface of fabric or rigid material that captures wind to propel a boat, ship, windsurfer or land vehicle, in forms such as square and fore-and-aft sails, mainsails, jibs, spinnakers and spankers, rigid wingsails and inflatable wing sails, and windsurf sail rigs; sails work by generating lift and drag, are made from cotton, flax or modern synthetic fabrics and are rigged on masts and spars under systems such as sloop, ketch and junk rigs.
What it is for: Propelling craft by wind.
It can be explain aerodynamics and kinds; describe rigs and materials; relay design and handling; distinguish from related devices.
Distinguishing features
Lift and drag propulsion
Fabric or rigid forms
Rig-dependent shapes
Trim and control
What it looks like
A large fabric or rigid surface set on a mast to catch the wind.
How it is recognised
Wind-catching surface for propulsion
Mainsail, jib, spinnaker, spanker, wingsail, windsurf sail
Kites fly on lines; wind turbines extract power; solar sails use light pressure
Related models
is a kind of - in registry terms
is a kind of - in registry terms
is a kind of - in registry terms
is set on - and spars
In practice
Families and kinds
square sails
fore-and-aft sails: mainsail, jib, genoa, mizzen and spanker
downwind sails: spinnaker and gennaker
rigid and inflatable wingsails
windsurf and kite-adjacent sail rigs
sails for land and ice yachts
modern cargo ship sails
Standards and regulation
Class rules for racing sails
ISO standards for small craft rigging
Sail measurement rules of sailing federations
Failure modes and hazards
Tearing and rig failure
Capsize from overpowering
Confusing sail types and rigs
Also called
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.sail
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Understand How sails work.
Science.
Aerodynamics
Aerodynamics.
Aerodynamics
Aerodynamics.
- How do sails generate lift and drag, and how can boats sail upwind? definition
- Is the device a sail, a kite or another wind device? boundary
Kinds
Kinds and rigs.
Kinds
Kinds.
- What kinds of sail exist, and how do rigs combine them? definition
- Which entry fits the specific sail or rig? action
Make Materials and design.
Practice.
Materials
Materials.
Materials
Materials.
- What materials are sails made from, from canvas to laminates and rigid wings? provenance
- Which references are standard? provenance
Design
Sail design.
Design
Design.
- How are sails designed, cut and measured, including under class rules? provenance
- Which entry fits sailmaking? action
Use Handling and safety.
Practice.
Handling
Trim and handling.
Handling
Handling.
- How are sails trimmed, reefed and handled, in general terms? provenance
- Is the user seeking instruction for real sailing, which needs a qualified course? boundary
Safety
Safety.
Safety
Safety.
- What safety issues involve sails, and how are they managed? provenance
- Which sources are cited? provenance
Context History and future.
Context.
History
History.
History
History.
- How did sails develop from ancient square sails to modern rigs and wingsails? provenance
- Which entry fits the history of sailing? action
Future
Wind-assisted shipping.
Future
Future.
- How are sails and wingsails being revived for cargo ships, as reported? provenance
- Which entry fits wind-assisted propulsion? action
What the second pass must settle
- Should each sail type be a separate entry?
- How should class rules be linked?
- The registry entry has merged aliases naming specific sail types and technologies; should they be split off?