Comet 4 Flying Tips
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General Tips | Auto Coupled Approach
Auto Coupled Approach
| Typical ILS approach & Landing
1 | AP Altitude Lock ON when tracking outbound and around procedure turns. 2,300 ft above airport if possible.
2 | Approach speeds should be reached by use of flaps alone, keeping the RPM constant (6500-6700).
3 | Perform turn using 'HEADING' mode.
4 | Attack ILS beam at 45 degrees then select 'GLIDE' on the autopilot
5 | To keep RPM constant all the way down, only select 30 degrees flap after the GS indicator has started to move. Select 40 degrees just before intercepting the glide slope. (1/2 notch on GS indicator).
6 | 60 degree flap selected at less than 3 miles to run. 80 degree flap should only be selected at 1 mile or less. Monitor ASI carefully on final approach and reduce speed to Vat + 5 kts (or Vat + 1/3 of reported windspeed if over 15 kts)
7 | The approach must be monitored by reference to the CDI, ASI and by visual reference. One hand must be kept on the control column in readiness to revert to manual control. Autopilot off at decision height, making sure to correct any movement when AP disengaged.
8 | At threshold keep power on. Reduce decent rate to under 300 ft/min, then select engines idle. Hold until wheels touch. It is normal to flare around 2 or 3 degrees.

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