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Past, Present, Future

 
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BobsV35B(at)aol.com
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PostPosted: Sat Jan 21, 2006 3:08 pm    Post subject: Past, Present, Future Reply with quote

Good Afternoon John,

That was the way it was taught in the days of the DC-4. By the time the DC-6
and DC-7 were on the scene, thoughts on handling the flaps began to change.

By the time the jets came upon the scene, almost everybody agreed that full
flaps were the best way to go. However, the last few years, many airlines
have reduced their flap settings for the final approach to reduce fuel
consumption and to reduce the noise. In any case, when partial flap approaches are
executed these days, they are generally followed by partial flap landings.

Anyone who is currently teaching the application of flaps when the landing
is assured, is still working in the dark ages! I am not saying the they are
wrong, just not in step with current thinking.

I was taught to not take full flap until I had the field made when I
received my multiengine rating fifty-six years ago. I did it that way and taught it
that way for the next fifteen years or so. However once I was trained to
evaluate the approach and use flaps as appropriate for the conditions that
prevail, I started to go with those that feel full flap should be used the vast
majority of the time.

A full evaluation of all the reasons to use full flap, and the reasons not
to do so, would take a lot more band width than I believe the list wants to
bear, but as I remember the characteristics of the Aero Commanders I flew all
those many years ago, I would recommend full flap being applied either when the
final descent to landing is initiated or very soon thereafter.

The old idea was that you didn't want to take full flap because you may have
to go around. There are many other ways to handle the go around with full
flap, but that does depend on the conditions encountered on the landing in
question.

As Always, It All Depends!!

Happy Skies,

Old Bob
AKA
Bob Siegfried
Ancient Aviator
Stearman N3977A
Brookeridge Air Park LL22
Downers Grove, IL 60516
630 985-8503

Do Not Archive


In a message dated 1/21/2006 4:44:13 P.M. Central Standard Time,
john(at)vormbaum.com writes:

I guess it's a shortcoming of my training; I was trained not to go full
flaps until the runway was assured. How do all you other guys manage your
flaps in Commanders?


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nico(at)cybersuperstore.c
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PostPosted: Sat Jan 21, 2006 4:13 pm    Post subject: Past, Present, Future Reply with quote

Good grief, Bob, you don't mess around when you refer to yourself as 'Old
Bob', huh?

---


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BobsV35B(at)aol.com
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PostPosted: Sat Jan 21, 2006 4:16 pm    Post subject: Past, Present, Future Reply with quote

In a message dated 1/21/2006 6:14:12 P.M. Central Standard Time,
nico(at)cybersuperstore.com writes:

Good grief, Bob, you don't mess around when you refer to yourself as 'Old
Bob', huh?

Hey I was an Eagle Scout! Gotta tell the truth.

Do Not Archive

Happy Skies,

Old Bob
AKA
Bob Siegfried
Ancient Aviator
Stearman N3977A
Brookeridge Air Park LL22
Downers Grove, IL 60516
630 985-8503


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john(at)vormbaum.com
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PostPosted: Sat Jan 21, 2006 4:23 pm    Post subject: Past, Present, Future Reply with quote

Bob,

Thanks for the reply. I hope I'm still flying 56 years from now. Heck, I
hope I'm still HERE 56 years from now!

It's definitely starting to sound like there's little consequence to using
full flaps on a Commander anywhere in the approach, assuming you can manage
a go-around with a modicum of skill.

Again, I'll have all sorts of fun stuff to try the next time I go flying.
Whenever that is....the weather here isn't so good right now.

/J
---


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BillLeff1(at)aol.com
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PostPosted: Sun Jan 22, 2006 10:36 pm    Post subject: Past, Present, Future Reply with quote

Jets use full flap approaches to keep the engines spooled up to reduce
engine response time in the event of a go around or wind shear. Prop aircraft, ie
Commanders, do not have that problem. So, full flaps when the landing is
assured is still proper in the Commander.

Jets also reduced the flap settings to meet Stage II and III noise
requirements and did carry that setting to landing. I know one case, the DC-9-30
series reduced the landing flaps from 50 deg. to 40 for vibration.

Bill Leff


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