Our principals Bruntons Propellers & Stone Marine are specialists in the design and manufacture of tailshafts and propellers: Their brands are:
- Autoprop: a range of self-pitching feathering propellers destined for sailing yachts from 30ft to 60ft in length, available with two or three blades.
- Varifold: a range of folding four-bladed propellers destined for custom yachts in excess of 60ft in length.
- Sigmadrive: a range of constant-velocity couplings that eliminate noise and vibrations due to disalignements of propeller shafts.
- For large vessels, Stone Marine Propulsion provides a complete design and manufacturing package for line shafts and fixed pitch propellers up to and exceeding 100 tonnes.