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Date: Mon, 04 Jan 1999 10:39:03 -0600
From: Brett Rabe <brett@uswest.net>
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Subject: Re: C-150 to C-172 transition: Not trivial
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Tinkicker5 wrote:
> As you cross
> the runway threshold you should be transitioning to the flare attitude.  By
> doing that, your speed will be 1.3xVso (BUT DON'T LOOK AT THE ASI!  FLY THE
> BIRD).

Yeep. I always doublecheck the ASI as I head over the
threshold.

Theoretically, it's not necessary because I know exactly
what the windspeed and direction is and can adjust my mental
image of what the 'visual picture' should be.

But, let's say I goof up ... I'm tired from 6 hours of
flying or something ... and I head in to a quiet airport.
The wind is straight down the runway at 15 knots. Let's
say that I promptly make traffic for the wrong runway and
land downwind because I forget to check the wind or I
misread the windsock or for any number of reasons (that
shouldn't happen!).

The last chance I have to notice that mistake is when I'm
racing over the threshold and my visual picture says I'm
going way too fast but the ASI says I'm right on the money.
What happens if I don't make that mistake? Remember, we've
already determined I'm a bit slow today and goofy in the head
for this particular flight.

Now I try to slow down so that my groundspeed matches my
picture of what I think things should look like. Now my
airspeed drops from a typical light single trainer's
short final speed of ... 60 knots to something like 45 knots,
and my sink rate is soon to be increasing substantially
with no energy left to arrest it.

Maybe I'm alone in double- and triple-checking that sort
of thing, but I think a quick glance at the ASI over the
threshold is valuable.

Am I way out of line?

Maybe I misunderstood you. I certainly don't waste any
time glancing at the ASI once I'm actually into the flare.

Brett

-- 
Brett Rabe                            Email :      brett@uswest.net
Systems Administrator - U S West      Phone :          612.664.3078
Interact - 3S                         Pager :          612.613.2549
600 Stinson Blvd.                     Fax   :          612.664.4770
Minneapolis, MN 55413 USA             Pager : page-brett@uswest.net

       For sale -- Iraqi rifle. Never fired; dropped once.
