Originally Posted by
Krystal n chips
I based my query on the fact. that, whilst Poseidon is clearly more advanced then to me, carrying Airborne Techs would have been prudent . If however, the reliability of the kit is such that failures are rare, then I can understand why they have been dispensed with.
It is not so much reliability as the practicality of carting the right test equipment and spare (expensive, so scarce) LRU's around.
Modern test equipment is pretty much essential, but is far too costly to have a set per aircraft. It also weighs, so would cost endurance as well as money. Additionally, if your spare kit is overhead the GIUK gap somewhere, but unused, it is also not available to fit to the relief aircraft.
N