BD,
Initial (ILS or other) APP with mid settings - Flap15 + Gear down on present type - to Circling Min.
Breakoff when field in sight 45deg R/L then fly 20sec (or time 45seconds including first turn) then downwind heading. If permitted (depends if FAA or JAA certified) use A/P to assist lookout.
Time after abeam (good for 800ft) 25secs +/- wind adjustment,
Flap 25, turn base, A/P off, Nail Glideslope, keep R/W in sight.
When final assured flap final setting (30 or 40) Vref + corrections.
This is the basic method. Variations possible for extra high downwind (Nice) or low downwind (rule of thumb - after abeam time three seconds per 100ft height.
Hope it is of use. FC.
[This message has been edited by Few Cloudy (edited 20 June 2001).]