catamaran
Let an agent explain catamarans, relay design principles, types and history from naval architecture and maritime sources, describe the vessels the registry aliases name, and distinguish catamarans from trimarans, monohulls, outrigger canoes and proas.
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 catamarans, relay design principles, types and history from naval architecture and maritime sources, describe the vessels the registry aliases name, and distinguish catamarans from trimarans, monohulls, outrigger canoes and proas.
A multihull boat with two parallel hulls joined by a deck or frame, offering stability and speed with shallow draught, used as sailing catamarans, high-speed passenger ferries such as the Sydney RiverCats and SuperCats, Westamaran ferries, small-waterplane-area twin hull vessels designed for seakeeping, military craft such as the Second World War Siebel ferry, and small human-powered pedalos; the design derives from the twin-hulled canoes of Austronesian peoples and the Tamil word kattumaram.
What it is for: Sailing, ferrying and leisure on water.
It can be explain design; relay types and history; describe named vessels; distinguish related craft.
Distinguishing features
Two hulls
High stability
Shallow draught
Speed potential
What it looks like
Two slender hulls connected by a platform or crossbeams.
Physical character
name origin: Tamil kattumaram, tied logs note
Westamaran: 1960s-1970s note - Norwegian ferry design
Siebel ferry: 1940 year - German twin-pontoon craft
SWATH: hulls mostly submerged note
How it is recognised
Boat with two parallel hulls
Sailing catamarans, Sydney RiverCats and SuperCats, Westamaran, SWATH, Siebel ferry, pedalo
Trimarans have three hulls; monohulls have one; outrigger canoes and proas have unequal hulls
Related models
is a kind of - in registry terms
is contrasted with -
derives from -
includes -
In practice
Families and kinds
sailing catamarans including beach cats
cruising catamarans
high-speed ferries such as RiverCats, SuperCats and Westamarans
SWATH vessels
military twin-hull craft such as the Siebel ferry
pedalos
Standards and regulation
ISO 12217 stability standards for small craft
High-Speed Craft Code of the IMO
Failure modes and hazards
Capsize that cannot self-right
Confusing multihull types
Registry aliases naming specific vessel classes
Also called
+7
Where this came from
wikidata · CC0 1.0
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 What a catamaran is.
Definition.
Definition
Definition.
Definition
Definition.
- What is a catamaran, and how does it differ from a trimaran, monohull, outrigger canoe and proa? definition
- Is the question about design, a type, a vessel class or history? boundary
Vessels
Named vessels.
Vessels
Vessels.
- What are RiverCats, SuperCats, Westamarans, SWATH ships, Siebel ferries and pedalos? definition
- Which entry fits the specific vessel? action
Design Design.
Science.
Stability
Stability and speed.
Stability
Stability.
- Why are catamarans stable and fast, and what are their drawbacks? provenance
- Which references are standard? provenance
Hulls
Hull forms.
Hulls
Hulls.
- How do planing, wave-piercing and SWATH hulls differ? provenance
- Which sources are cited? provenance
Use Use.
Application.
Ferries
Ferries.
Ferries
Ferries.
- How are catamarans used as passenger ferries? provenance
- Which entry fits high-speed craft? action
Sailing
Sailing and racing.
Sailing
Sailing.
- How are catamarans used in racing such as the America s Cup? provenance
- Which entry fits America s Cup? action
Context History.
Context.
Origins
Origins.
Origins
Origins.
- How did Austronesian and Tamil twin-hull craft develop? provenance
- Which entry fits Austronesian vessels? action
Modern
Modern history.
Modern
Modern.
- How did modern catamarans develop in the 20th century? provenance
- Which entry fits the history of sailing? action
What the second pass must settle
- Should SWATH and Siebel ferry be separate primary entries?
- How should maritime sources be linked?
- The registry entry has merged aliases naming vessel classes; should they be split off?