In the absence of the Suffolk expert, I DOUBT there is a 'stack',a sit is not exactly busy, but there will be a published holding pattern on the approach beacon. In the dark ages when I went there I think it was an NDB?
You will have to wait for a 'Suffolker' to come along with more detail.
EDIT: Just noticed your username and I would suggest you pop into the control office/tower at Ipswich next time and ask?
Last edited by BOAC; 14th November 2005 at 19:02.