Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

SR.N4

The SR.N4 (Saunders-Roe Nautical 4) hovercraft (also known as the Mountbatten class hovercraft) is a retired combined passenger and vehicle-carrying class of hovercraft. The type has the distinction of being the largest civil hovercraft to have ever been put into service.

Development, Operational service & Design

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around SR.N4. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Active
0
Beam
23.77 m (78 ft 0 in)
Builders
British Hovercraft Corporation
Capacity
up to 60 cars and 418 passengers
Completed
6
Height
11.48 m (37 ft 8 in) on landing pads

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

Development

Design

Operational service

Surviving examples

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

SR.N4

Nodes70
Edges69
Triples137
Avg. degree1.97
Density0.028571
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

SR.N4

Top relations

related to Surviving examples · 25
SR.N4 → APUs, As, Bolton, Brave Challenger, Canada, GH-2006 Princess Margaret, GH-2007 Princess Anne, Haydon-Baillie, Hover Transit Services, Hovercraft Museum, III, Lake Ontario, Lee-on-Solent, Mk, N4s, New York, Ontario, Rochester, Rolls-Royce Proteus Marine, SR
related to Operational service · 24
SR.N4 → Amongst, As, BHC, Boulogne, Brindle, British, British Rail Hovercraft, Calais, Chamber, Channel, Charles Brindle, Commerce, Dover, English, English Channel, Folkestone, French, In October, It, N4
related to Prototype and testing · 22
SR.N4 → BHC, British Hovercraft Corporation, During, February, Having, Hoverlloyd, In, In October, Isle, Later, Mountbatten-class, N4, November, On, Saunders-Roe, Saunders-Roe Princess, Seaspeed, SR, The, Throughout
related to Design · 13
SR.N4 → Dowty Rotol, GPS, It, Its, N4, N4's, N5, Rolls-Royce Proteus, Six, SR, The Proteus, The SR, Type Racal Decca Bridgemaster
related to Origins · 13
SR.N4 → At, Blackburn, By, However, In, In August, N2, N4, N5, Proteus, Rolls-Royce Proteus, SR, This
related to External links · 11
SR.N4 → Archived, December, Hovercraft Museum, II Deprecated, III Archived, March, Museum, N4 Mk, SR, Wayback MachineBrave Challenger, Wayback MachineHovercraft Museum
related to Military interest · 7
SR.N4 → Hunt-class, Inter-Service Hovercraft Unit, N3, N4, SR, The, The Royal Navy
Operators · 3
SR.N4 → Hoverlloyd, Hoverspeed, Seaspeed
Active · 1
SR.N4 → 0
Beam · 1
SR.N4 → 23.77 m (78 ft 0 in)

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

sr n4 hovercraft craft service princess first would engines seaspeed passengers cars four mk british proteus type 1968 iii saunders-roe

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
SR.N4Active01.00infobox
SR.N4Beam23.77 m (78 ft 0 in)1.00infobox
SR.N4BuildersBritish Hovercraft Corporation1.00infobox
SR.N4Capacityup to 60 cars and 418 passengers1.00infobox
SR.N4Completed61.00infobox
SR.N4Height11.48 m (37 ft 8 in) on landing pads1.00infobox
SR.N4In service1968–20001.00infobox
SR.N4Installed power4 x 3,800 shp (2,800 kW)1.00infobox
SR.N4Length56.38 m (185 ft 0 in)1.00infobox
SR.N4NameSR.N4 Mountbatten class1.00infobox
SR.N4OperatorsHoverlloyd1.00infobox
SR.N4OperatorsSeaspeed1.00infobox
SR.N4OperatorsHoverspeed1.00infobox
SR.N4Preserved11.00infobox
SR.N4Propulsion4 x Rolls-Royce Marine Proteus gas turbines for lift and propulsion, each driving a single four-bladed variable-pitch propeller1.00infobox
SR.N4Scrapped51.00infobox
SR.N4Speed70 knots (81 mph; 130 km/h)1.00infobox
SR.N4Tonnage320 t1.00infobox
SR.N4TypeHovercraft1.00infobox

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.