Originally Posted by
Distant Voice
It was reported in 2013 that, "Wire strike is Cdr JHC's (ODH)'s second highest Air Safety risk". Was this Puma fitted with Wire Strike Protection (first mentioned in PART report in 1995), or was the essential modification delayed in the same way as CWS for Tornado? Did the ODH sign off to say that the risk of Wire Strike was ALARP?
DV
I suppose ALARP is a question of the cost of technology and the benefit it provides. Most cutters are designed to cut horizontal wires as that is the most likely threat. They are of course a mitigation to an event that has already occurred. Wire avoidance is mainly based on mapping that has known telegraph/power cables. For local temporary vertical wires not on maps you are looking at a forward looking sensor that is expensive to integrate, low TRL and maybe only DAL C and therefore doesn't greatly change the risk calculations?