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Old 25th Oct 2021, 07:38
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safetypee
 
Join Date: Dec 2002
Location: UK
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Sceptic… , an enlightened operator.

No so long ago, pre technology, windshear training was based on observation, ‘know before you go’, if you don't know, don't go.
Nowadays, with technology designed to assist, but is used as the arbiter, decision maker, we devolve our responsibility to a machine - we are cognitive lazy - we dislike thinking.

The original training - required assessment of the environmental conditions with bias towards not departing in marginal conditions; this can be related to a low speed abort - don't go. The training also considered higher speed regions, windshear - a surprise (how do you detect it), and on the balance of risk - a judgement of outcome, thinking (an informed guess), was to continue the take off.
The balance of risk involved that of stopping from high high energy, and continuing through the conditions where increasing aircraft energy was beneficial. This also considered head / tail wind shear and crosswind, some situations which helped, others not so; the pilots didn't know.

Technology may not know any better; possibly in some situations, but neither may we know what the machine knows unless we think about this before we decide to takeoff.
Understand the limits of both human and the machine, and the benefits of them together

The OP (as with most SOPs) ‘cans’ the situation; assumed conditions, awareness, precautions.

A thought - if you get a PWS caution, what was the takeoff power setting ….

https://www.faa.gov/documentLibrary/...ar/AC00-54.pdf
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