One interesting and unplanned benefit of the T tail on the Handley Page Victor when it was in it's testing phase was that on landing, the low set anhedral wings would be subject to ground effect whereas the tail would not. The resulting pitch would flare the aircraft almost perfectly for a very smooth landing and it prompted Handley Page to bill the Victor as "The aircraft which lands iteslf".
Unfortunately, the tail came off one of the prototypes during testing during a high speed low level position error test at Cranfield and the resultant re-design shortened the fin and the "autoland" effect was lost. It certainly didn't do that when I flew it, as anyone who suffered any of my Victor landings would attest!