One of those MD500's could depart on the runway heading, manage a climb better than the RV-X, and probably be even harder to see while doing it. Would the MD500 pilot be wrong to accomplish a maximum performance climb on the runway axis? Is there a limiting procedure for this? I've never seen one.
Pilot DAR I have seen this for Biggin Hill:
EGKB AD 2.22 — FLIGHT PROCEDURES
1. Circuit Procedures
a. Aircraft taking off, 'going around' or making 'touch and go' landings are to remain at or below 500 ft QFE until the upwind end of the runway in use has been passed, when a left or right turn (as appropriate) should be initiated. Aircraft joining or re-joining the circuit for landing are to fly across the upwind end of the runway in use at 1000 ft QFE at 90° to the runway heading, a left or right turn (as appropriate) should be made onto the downwind leg.