ILS approach to near minimums - Video

On Sep 28, 10:00*am, Clark wrote:
D Ramapriya wrote in news:e238c979-3550-4a59-87f1-
:



On Sep 28, 8:36*am, Clark wrote:
D Ramapriya wrote in news:2f5fa47a-a9a0-4d76-897e
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:

Jeez, in most videos I've seen of yours, the stall horn has sounded
just before touchdown. I bet you like hairy landings

Just an educational point: a perfect landing includes a full stall about
a
foot off the ground. Typically the stall horn will sound about 5 to 10 kn
ots
above the actual stall. Alan's landings appear to be quite good.

In other words, there is no harm in stalling within a few inches of the
runway. On the other hand, there can be great harm in attempting to land
way
to fast.

Thanks, mate. Won't this lead to dodgy finals in a situation where the
headwind tails off for some reason (a gust or some such)?

Final is typically flown at 1.3*Vso which translated means 30% above stall
speed. The extra velocity is lost in the roundout at the bottom of the
approach. If the winds are gusty then 1/2 the gust factor is added to the
approach speed. The gust factor is the difference between the base wind
velocity and the maximum gust velocity.

Folks have been doing this for a long time and the numbers work really well.


Correct me if I'm wrong but there may also be the possibility that in
aircraft where the computer doesn't correlate data from the AOA
sensor, you'll probably get a slightly slower airspeed indication than
actual during the flare, in which case even the stall horn would be a
kind of false alarm

Ramapriya