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Old 4th February 2026 | 14:16
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safetypee
 
Joined: Dec 2002
Posts: 2,775
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From: UK
Been there, done it (T shirt), thought about it, still don't know

This is a very contentious issue for which there might not be a definitive view.

It is likely that the technique used in training will be refined with experience and possibly for different types.

With personal experience ranging from landing175 kt fast jet, regional turboprops, steep approaches - DLC, FBW, and research into manual landing in low visibility (cat 3) - and combinations thereof, there is at best only a correlation involving primarily judgement of height and height rate.
How these parameters are deduced is conjecture; height appears to involve aspects of triangulation as noted by different runway width and the size of runway concrete blocks, etc, although experienced pilots (prior knowledge / experience) can manage differences.

Height rate probably involves the height parameter but also ground 'texture'. Day landings did not vary with surface type or markings, however night landings were challenged by reducing texture - visibility and quality of touchdown zone lighting, the latter's absence was critical, as was being over-bright which destroyed the 'fairy-light' ground carpet; so too, a very bright centreline. However, bright edge lighting was an aid as was a well defined runway edge by day - peripheral vision.
There was an interesting correlation between manual landing and auto-land (and FD/HUD), where the latter's control law (generalised as ht + ht rate + k = 0) could be seen in human performance, although different for each aircraft type. This does not exclude damping / feed back cues from stick position, force, and attitude, looking ahead - particularly for 'Airbus' type controls.

A speculative view could relate ht / ht rate to a mental short-cut similar to the ability to catch a 'fly-ball' when running - the gaze heuristic, which improves with experience, but not known how this is learnt; practice, practice, practice. Then there are further variables with approach speed, wind, glide-path, ….

The workload and quality of landing was influenced by visibility, particularly the far-point seen in pure manual landings (n.b. FD/Auto requirements cat 2-3); this also correlates the heuristic with flightpath angle, line of sight, projected touchdown point - looking ahead.

The visual - manual skills involved are learnt by observation and practice; they are tacit, thus unlikely to be adequately described by others; thus observe, feel it, do as I do not as I say.

Play cricket / baseball, don't sweat the landing it takes time, and with honest refection, landing involves skills never mastered, only good enough, and always opportunity for improvement.

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Last edited by safetypee; 4th February 2026 at 14:32.
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