Propulsion control.

Qtagg supplies governors, actuators and pitch control for diesel engine-based propulsion systems. Our products are often used for retrofit and are compatible with existing installations.

Diesel engine governors

The DEGO diesel engine governor is made for controlling speed and load on diesel engines arranged in any possible configuration. DEGO is approved by the major marine classification societies. Outputs are available for fully electric or electro-hydraulic actuators. DEGO can be used with both single- and twin-engine propulsion, as well as for power generation.


Our ASAC actuators can be used to replace worn out actuators for medium or slow speed diesel engines. They use AC drive technology with resolver position feedback and a highly efficient gearbox with no backlash. ASAC actuators are approved by all major class societies and fully compatible with all versions of the DEGO governor.

Pitch control

Our pitch control interface (PCI) is an integrated expansion of the DEGO governor. It interfaces with all major CPP manufacturers’ hydraulic systems, in single- and twin-engine arrangements. By integrating the pitch control with the governor, the number of individual systems is reduced, and so is the cost of service and maintenance.

Extend the lifetime of your propulsion control system

We can supply replacement governors and actuators for ABB, Wärtsilä, Nabco/Nabtesco, Kongsberg and Woodwards governors and actuators.