Halfpenny Gren is no stranger to jet efflux damage tho it is an old story now - a Harrier lifted large parts of a runway there in the mid '80s at a show.
Was there a danger of damage to the tail or does the efflux strike sufficiently aft to avoid that?
The way he goosed the power while 90' off runway heading made me thing we were in for a spectacular "off" into the weeds too. Looked hairy.
Santa Pod had a Derwent on a Bedford chassis with a downward facing cowl around the exhaust a la tarmac stripper for drying the strip - it was said that if you overdid the power the back wheels would levitate easily.