The thing that most annoys me about these speculations is the defensive nature of the argument. Let’s all think straight and admit that it isn't our faults it's the equipment. An RAF 747 with full DAS would suit our needs perfectly - quick, reliable and big.
It is the system and its financial irregularities or peculiarities that cause the gripes and I have no wish to deride the AT fleet. Who has a real answer to the real and present problem, not me.
The Civ Servants (ironic - servants) have the key and until we can persuade them, it's 3 hrs extra on my all too frequent trips!!! Oh how I love the way I earn a crust - and it ain't much better when I board my chariot in theatre either!!!!