PPRuNe Forums - View Single Post - Engine Failure Gliding - Final Approach Phase
Old 8th August 2005 | 02:45
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Flight Safety
 
Joined: Jan 2001
Posts: 739
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From: Dallas, TX USA
So, if I could summarize what's been said so far (with additions), into a general procedure.

If engine failure occurs during cruise;

1. Select oxygen if needed, then trim the aircraft and establish a glide at best glide speed, which buys the most time and distance.
2. Contact ATC, declare an emergency and get a vector (or vectors) to the nearest airfield.
3. Start the glide to the airfield (or other suitable landing area).
4. Attempt engine restart per the recommended procedure (we'll assume this fails).
5. Try to choose whether you will use a pattern approach or a straight in approach, depending on distance to the landing area, wind direction, etc. It seems you would use a pattern approach if you will arrive high over the airfield, or straight in if you will arrive near the end of the glide.
6. Pick your "near the field" aim point and altitude based on how you'll fly the approach, high key point for a high key/low key pattern, or a point (I'm not sure where or how high) for a straight in.
7. When you arrive near the aim point, switch modes from the "glide to aim point" phase to the "approach and landing" phase.
8. Fly the chosen approach to the landing, timing the use of gear and flaps as required (where do you get this data?). Try to make sure that you have both long and short touch down points available.

Writing this makes me think that it would be good to practice both straight in and pattern approaches (trying and testing gear and flap selection points maybe?).

Regarding pattern approaches, I don't think I would practice a glide pattern approach that relies on any features specific to a home airfield. The only thing that will be common at any airfield is a runway, so that should be the pattern reference. The high key/low key pattern approach seems to rely on the runway only for reference, which makes sense to me. It seems the "constant aspect" approach should rely on the runway only for reference as well.

Please correct any of these comments as needed.

Last edited by Flight Safety; 8th August 2005 at 02:55.
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