Every post appears to accept a plane climbs, fast or not, straight on, right up to circuit height. So what's going on ??
AFIR one was taught to climb to 500 ft then make a (left) turn and continue climbing till at 1000 ft, ready for a downwind leg at circuit height.
So have the rules changed without me noticing, or has Shoreham a non standard circuit climb pattern ?
When joining an airfield crosswind I fly over the upwind end of the runway at (usually) 1000 ft - should anyone unnoticed be climbing out I'd expect them to turn crosswind too 500 ft below me & continue to 1000 ready for downwind if circuit training.
ATC normally will accomodate alternative approaches/departures depending on the traffic density, when high volumes one is usually requested to use the conventional O/H join, descend to circuit height on the dead side etc.
mike hallam.