From original email 12 Dec 2019 17:56
It’s difficult to say what the clearance is now because they keep moving and are often put out manually each meeting and so its variable.
Also, it usually isn’t put out with any measurement. The semicircles are usually very flat making the circuit rather square.
The transponder bracket is 17mts from the pontoon and so I was able to put the proposed circuits at the Naviga distance of 15mts.
Do you agree that it would be desirable if the perimeter distance was the same as Naviga?