Re Tornado/RAF probe flights
Sorry spamcan,
As an ex-F3 driver who lectures on jet engines - forget it. High level in a Hawk for huge amounts of danger money maybe, at least there's a chance of gliding somewhere. The best bet for lower levels may be a piston Tutor - easier to fit with the samplers if they aren't heavy. Other than that I think earlier suggestions about Nimrod sound best. You can at least stooge around with two engines shut down, then start them if the in-use engines go. Plus they are sitting around doing nowt at present. Any kipper fleet/R1 drivers care to comment?