Re: Biggest boat docked under sail
Almost every keelboat in my club docks by sail power alone (I am not among them, yet). Many don't even have motors. These are mostly smaller race boats; J24s, Melges 24s, Santana 525s, S2 7.9s up to J30s etc, so they are a bit lighter than some. With a full race crew it is easier plus the club docks have huge fairways, or are open to the breakwater.
Most just furl or take down the headsail as they get close to the docks and come in under mainsail power alone. On final approach they blow the main or drop it depending on the wind direction relative to the slips. If they are coming in too hot after the main is dropped, they put the tiller hard over for a 270 degree loop that slows them down and lines them up. At that point one crew member is sufficient to hop off and stop the boat.