Thanks guys. Special thanks to Nigel B for the tip about the AI Smooth banner - like Joe, I hadn't read the manual
For Nigel H_J and anybody else who finds the final turn a bit challenging. The secret is to ensure that the you have the audio switch on the radio selected ON for "marker". As you reach the middle marker, which is the point at which the approach lights start to curve, you will get an audible beeper. If you are in a large aircraft (747) you should begin your turn immediately, the smaller the aircraft the later you leave it. Try waiting two to three seconds in a VC10 before beginning the turn. Note where the approach lights are in your windscreen and keep them at the same place as you bank and you will find yourself straightening up at the right place. Of course, you will have taken your eyes off the speed and the rate of descent, but at least you'll be over the centreline as you do your go-around
There are different ways of attacking the curve. One way is to approach the middle marker to the left of the ILS beam, leave the turn longer and then do a steep turn to straighten up earlier to allow room for corrections. Or you can fly the beam, turn on the marker and keep the aircraft inside the approach lights, allowing it to drift out to the centreline as you straighten up. The latter was the usual practice for BOAC and BA pilots when I was on the jump seat and that's generally how I try to fly it in the sim. At least if you have the audible marker, you have a reference point from which to practise the approach and see what works best for you. I know Tonks flies this approach in the C1K simulator so if he drops by perhaps he can give us some professional tips.
Ian
