There was recently a P 420 sold on the upper Thames.
One of the claimed advantages of the boat was its ability to access all of the upper Thames excepting that low bridge at Oxford.
Princess 420 Height Above Waterline to top of GRP radar arch: 11ft 6in / 3.51m Height Above Waterline to Top of Fixed Structure (Excluding radar arch and light mast): 11ft 0in
Unfortunately nothing on the Princess Heritage site about the P42.
Suspect a very similar AD for both ?
