K1s and K2s also had the additional fuel jettison facility through the pods, of course, which I used on a couple of occasions. The main jettison position was only used in an emergency as the jettisoned fuel could contaminate electrical equipment in the unpressurised aft compartment. We once had an aircraft fueled to 40k lbs for a transit from Marham to Leuchars, but it went U/S on start up and the only alternative aircraft was fueled up to the max 86k. My flight commander captain was unwilling to wait for this one to be defueled, so we took it as was, and all the way up the North Sea I dumped 40k of fuel through the pods to get us down to landing weight (25k as I recall) at Leuchars. We could also use the pods to "mark" ie jettison a small amount to create a mini contrail to make ourselves more visible and assist the RV with the receiver, Nowadays we would no doubt be accused of creating chemtrails!