vino collapso - its a training airfield, circuit size varies, sea breezes might dictate the use of 20, when the upper wind suggests 02 - pilots are responsible for visual separation that means lookout. lined up yesterday and watched an aircraft join crosswind, we found it hard to believe you could hit him, at least not in a trainer. back on the ground we watched several aircraft join crosswind, some over the numbers, some wider, and as another mentioned on here, some peoples crosswind climb parallels the coast, if you had a performance SE aircraft, would you fly out to sea if you didnt have to?. like most accidents, it wont be one thing that caused it, but like the swiss cheese, when all the holes line up.........