S78,
Indeed they have, but on a very occasional basis, not with the regularity that there is now. Normally if visiting Crick will do so using one of their helicopters direct unless weather reasons not to, not a factor in the last few visits.
As i said heard this from a member of the management team at Coventry, though to be fair he is quite well known for somewhat embellishing facts or to put it more crudely, bull****ting.