Simple port and stbd, I was on stbd sailing down wind PORT boat is trying to claim they did not have enough time to avoid me (so I went behind them) I was on Stb gybe for at least 100m before we got close, they had seen me and they had at least 30 seconds, they claim that they were running DDW (it was a monohull) and did not have steerage way to take action - I dispute this, they were moving!

So how long is Sufficient time to take action? It was obvious we were on a converging course, It was light but constant wind and so I was on a constant heading. They could have gybed and headed up without dropping the kite as it was light wind.

I've had a quick look in the case book, but cannot find one that defines "reasonable time".

Can anyone help?

Windspeed was maybe 5kts and no tide.