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Pitch Control Units


We made our first pitch control units in 1929 for the Hundested engine in connection with our propeller system. This was of the mechanical type with a big hand wheel to change the pitch. A lot has changed since then. We have used this extensive experience to update our units through the years. Our pitch control units are shaft line units designed to be installed aft of a standard reduction gearbox without built-in pitch control or with direct electric drives.  

This system has many advantages:

  • In combination with a conversion from a fixed into a controllable pitch propulsion system.
  • If a very noise and vibration-free installation is required.
  • If a reverse function in combination with a controllable pitch system is required.
The shaft line pitch control units all have built-in thrust bearings, long stroke for feathering propellers and can be delivered with semi-flexible foundations for very low noise applications. We can supply two different types of pitch control units. The difference is in the way the pitch is activated: It can either be electrically (FR-ELH) or hydraulically (FR-HP) activated. We can also supply a system (FR-HFC) with an O.D. box built on to an existing reduction gearbox without built-in pitch control. We supply our pitch control units to superyachts, mega yachts, and commercial vessels used for fishing and ferries. Our units can be installed on all types of vessels.