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BRUNTONSAustralia

Since 1868

The only company that builds every type of propeller.

From the Stour Valley Ironworks of 1868 to the only company on earth building every propeller type — through steam, sail, diesel and now electric. Bruntons Australia is that engineering with a Queenscliff Harbour address, operated by Goaty's Marine.

From the Stour Valley Ironworks

The company began in 1868 as Mainprice Barton's Stour Valley Ironworks — agricultural machinery, boilers and general engineering for the local mills and breweries. The propellers arrived in 1908, when an apprentice named Philip Ransome, fascinated by the new motor boats, carved wooden patterns for two- and three-blade propellers; Barton spotted the opportunity and the first Bruntons propellers were cast that same year. When Harold Brunton acquired the business on Barton's retirement in 1911, the company took his name and became a specialist propeller maker — a reputation the First World War forged into a major marine business.

In 1958 Bruntons joined forces with Stone Manganese Marine, the firm that props the world's largest ships — gaining metallurgy few propeller makers will ever have (the in-house alloys Nikalium and Superston flow from that lineage). The Sudbury foundry's largest casting — a three-metre four-blade designed for quiet running on a fisheries research vessel — left the mould in 1986. In 1988 came the Autoprop, developed with the University of Southampton: the world's first and only fully self-pitching propeller, honoured with the Queen's Award in 1999 after Sir Chay Blyth fitted it across the entire BT Global Challenge fleet.

Today Bruntons builds from Clacton-on-Sea, Essex, as part of the Stone Marine Group within Langham Industries — a privately owned British family business. Sister company Stone Marine Propulsion designs above Bruntons' 3-metre ceiling, up to the largest commercial vessels; group partner Tridan Engineering handles the Autoprop's precision machining, assembly and submerged testing. And Bruntons remains the only company that designs and manufactures every type of propeller: fixed, folding, feathering, self-pitching, electric and fully custom, for leisure, commercial and naval vessels. That breadth is the honesty advantage — a company that builds every architecture can tell you which one your boat needs, and which it doesn't.

The Australian operation — Goaty's Marine

Bruntons Australia is operated by Goaty's Marine, the official Australian agent for Bruntons Propellers, from Shed 6 at Queenscliff Harbour on Port Phillip — a working marine trades workshop with the harbour's travel lift alongside, decades of boat-building and marine engineering behind the counter, and national shipping. Supply, installation, servicing and spares for the full range — Autoprop, Varifold, Eco*Star, SigmaDrive, Autolock and IonGuard — are handled here, and the evidence library grows with every Australian fitting.

We publish no prices online — not as a game, but because every propeller is individually sized and verified for its boat. The recommendation is the product; the quote follows it.

The timeline

  1. 1868

    Mainprice Barton founds the Stour Valley Ironworks — machinery for the local mills and breweries

  2. 1908

    Apprentice Philip Ransome carves the first propeller patterns; the first Bruntons props are cast the same year

  3. 1911

    Harold Brunton acquires the business — the company takes his name and specialises

  4. 1914–18

    War work forges the marine reputation; propellers become the core of the business

  5. 1958

    Joins forces with Stone Manganese Marine — big-ship metallurgy arrives (Nikalium, Superston)

  6. 1986

    Largest Sudbury casting: a 3 m four-blade, designed for quiet running

  7. 1988

    Autoprop launches — the world's only self-pitching propeller, developed with the University of Southampton

  8. 1990s

    Sir Chay Blyth fits Autoprops across the entire BT Global Challenge fleet

  9. 1999

    The Queen's Award, for the Autoprop

  10. 2011

    SigmaDrive joins the range via Bruntons' long-standing Italian partner

  11. 2018

    150 years in business; 110 years of propeller manufacture

  12. 2020s

    First 4-blade titanium Varifold (Baltic 115); Eco*Star regeneration proven over 50,000 miles aboard 'Ya'

  13. Today

    Clacton-on-Sea works, Stone Marine Group / Langham Industries — 11,353+ fitments documented

  14. Australia

    Goaty's Marine, Queenscliff Harbour — the official Australian agent

  • ISO 9001 quality management
  • Queen's Award holder
  • British Marine member
  • Superyacht UK member
  • 150+ years of engineering

The work

From club cruisers to circumnavigators

Autoprop with blades feathered, studio portrait
Autoprop H5
Varifold folded
Varifold, folded
SigmaDrive coupling
SigmaDrive CV coupling
Eco*Star propeller closeup
Eco*Star, electric-ready

Get the verified recommendation for your boat

Tell us your boat, engine and how you use it — a propeller engineer replies within one business day with sizing checked against the fitment database.