This could easily have been yet another tragic fatal accident thread. The Hercules was not fit for purpose as a tactical transport aircraft because the default ESP fitted into all USAF C-130s was not fitted into RAF ones, yet both fleets were expected to carry out low level tactical operations and hence be liable to ground fire. With or without tablets the Chinook is at a risk exceeding ALARP by having to routinely operate at low level avoiding numerous and assorted high tension cables.
Given their vulnerability to wire strikes, helicopters need incorporated reliable warning systems in order to avoid them. Such technology exists and should be fitted. If the MOD is unable or unwilling to do so then low level training in the wire infested UK is not acceptable and should be carried out in a more wire benign environment. Either way costs money. What isn't acceptable is it costing yet more lives in avoidable fatal accidents.