Agreed - just wanted to demonstrate where UK had got to, in terms of thinking through and following up the CV backup option. Have seen a C13 up close and personal and that's not entirely CADAM-compliant either! Personally, I think the access issue will go away if the UK decides on a CV ship - I suspect the IPT just did not wish to spend money on accessing the data prior to a decision (however daft that may seem). After all the folk across the channel got their very own version of C13 made specially for them. Whatever we get clearly must be nosetow compliant which obviously favours C13, although modifiying the running shuttle on the BH6 might not be vastly risky (famous last words given current UK basic engineering successes!)