Hi Sebastian,
I haven't flown the approach at LFMK, but here are some of the basics: Firstly, if you are going down the ILS, don't arm Approach mode - use V/S down to your MDA (set MDA rounded
UP to the nearest hundred on the MCP). Configuration should be gear down, flaps 15 with speed brake armed.
At MDA, wait for ALT HOLD, set your missed approach altitude, select HDG SEL and offset track 45° L/R, depending on the plate. Keep this heading for 20 sec from wings level, then turn downwind. When abeam the landing threshold, start the clock. Fly outbound for 3 seconds per 100ft AGL (ie - if MDH is 800ft AGL, fly outbound for 24sec). Correct for wind by taking 1/2 the tailwind component and subtracting it from the 24sec (just go to progress page 2 and divide the TWC by 2).
Once time is up, request landing flap, match the speed, set RWY heading and use V/S to start a 300fpm descend, complete landing checklist. Use your position trend vector and what you see outside to judge the turn and adjust your bank angle with the bank angle selector accordingly. Intercept the normal visual glide path and disconnect the autopilot and autothrust. Verify your missed approach altitude is set and request for the flight directors to be recycled.
That's about it! No trig or geometry involved
