The scope of work for an airborne sensor-navigator has changed a lot in the past 10 to 20 years. In the very early days it was super important having solid navigator capabilities and of course a good understanding of the topic as such. In the meantime GNSS technology & dat quality improved significant. Furthermore, the workload & responsibility area of a navigator, which is flight crew member at the same time, looks quite different than before.
Looking into the present, the workload and main focus of an airborne sensor navigator has diverted drastically compared to the analogue age and requires for example strong IT competence as elementary key knowledge.
Its really important for an airborne sensor-navigators being able thinking outside the box and to understanding the relation between not always obviously connected subjects. It is a very responsible position which should not be underestimated neither from the workers side, nor from the management level side.
The biggest potential for having unexpected high costs, is during the data acquisition flights and its planning. But, at the same time it offers the highest potential for a good optimizing. Make your staff able being an efficient sensor navigator, which is ready for making the right decisions, if needed.