A One Knot Tailwind

[Eric Janson]

[quote author=Colonel Sanders link=topic=9277.msg25485#msg25485 date=1541092286]
Oh dear.  I hope people don’t confuse a 2,000 lb 172
with a 600,000 lb Airbus.

They are different, and are flown differently.
[/quote]
Very true.
I'd have no issue taking off downwind with the C-172 under the conditions you described.

[Colonel]

Nobody reads it any more, but a long time ago, TC once put
out a publication called the "Flight Instructor Guide" TP975E
which is actually regulatory wrt flight training IAW CAR 405.14:

[quote]CAR 405.14
Flight training that is conducted using an aeroplane or helicopter
[b]shall be conducted in accordance with the applicable [u]flight instructor guide[/u][/b][/quote]

but no one gives a shit.

In this document that no one reads any more, it says:

[quote]Teach your students to have [b]mastery over the aircraft[/b];
to fly with verve and spirit [b]to the limit of the aircraft's flight envelope[/b];
[b]to know what they can and cannot do[/b];[/quote]

I'd say that anyone that fears taking off in a 172 with a one
knot tailwind with a statute mile of paved certified runway and
sea level density altitude, does not approach "mastery over the
aircraft".  I wouldn't let them push my lawn mower.  They have
[i]no fucking clue[/i] what a 172 can or cannot do.

While this lack of knowledge is fine for many 21st century pilots
that just read books and push buttons in the cockpit, sooner or
later, not having the first clue about your aircraft's capabilities
may cost you dearly.

[youtube][/youtube]

Keep in mind that TC in Ontario Region says I am qualified but
not eligible to renew my class one flight instructor ratings, that
I held for decades.  Clearly I (and my family - flying for [i]over
100 years[/i]) know [u]nothing whatsoever[/u] about aviation.

[img width=500 height=336][/img]

My grandfather and his buddies, in 1917.  I must admit that it
remains something of a family mystery as to how Daniel Craig
(second from the right, top row) was one of them.

[Liquid Charlie]

When given winds such as that I always ask "is that a steady wind or a peek gust" -  >:D