I'm led to believe that the sensor operators on board a Merlin 2 are RN Leading Hands at the entry level. Don't they operate all the sensors? Radar,Sonar,Acoustics,ESM,Datalink,EO\IR and conduct other tasks such as SAR and winching. They've got to be significantly cheaper than the figures that have be mentioned.They also have a current training path and a queue at the careers office? Increase their manning liability and turn on the tap.