Three Blade LDB

JBC Engineering

The LD Three Blade model has been in use since 1993. Originally produced in aluminium bronze (LDB) we have in recent years updated the design, producing a fully duplex stainless steel version (LDS) for additional strength. Both have been successful, the LDB featuring on the beautiful replica tall ship, the Duyfken.

Can be set up for right hand or left hand rotation.

Can be supplied taper or pilot bored so a local shop can undertake the fitting if preferred.

  • Designed to get boats reacting positively, both forward and astern
  • More blade area to water than other designs means more efficient use of engine power
  • Feathers to minimal drag configuration under sail
  • Equal thrust in forward and reverse gears
  • Tougher construction with fewer moving parts
  • Positive incremental pitch adjustment
  • Fitted with zinc anodes as standard
  • Australian made for 26 years


Diameter Range: 28” to 36”

Shaft Range: 2" to 2½"

Sail Drive Option Available



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