XP328 ended being transferred to the civil register and then preserved at Tattershal Thorpe near Coningsby but whether 'tis still there is anyone's guess.
The aircraft sent to Gutersloh for ground display/GG duties was originally XP347 but it lost a tailrotor in Belgium and was destroyed when it rolled over, injuring the nav and two others. This was 5 May 81. Interestingly, it appeared that the wrong stuff might have been used as a lubricant - what a surprise!
Whether another Whirlwind was sent there I don't know but I and a load of mates were at Gutersloh on 10 May this year and I didn't see anything that looked like a Whirlwind.
As an aside, 230 came out of Gutersloh to go to Borneo but they returned to UK and Odiham and thence Wittering IIRC.
Old Duffer