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Final Flaps

 
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CloudCraft(at)aol.com
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PostPosted: Sat Jan 21, 2006 12:09 pm    Post subject: Final Flaps Reply with quote

In a message dated 20-Jan-06 23:28:20 Pacific Standard Time,
john(at)vormbaum.com writes:
final, then give the flaps the last 'notch' to "full flaps" on 1/2 mile
final or so, when the landing is assured, and BAM, suddenly I'm at 100kias,
John,

You've gotten some good pointers already on the sight picture and flap
operation. Nice work, guys!

I went to half flaps prior to turning base or about 2 minutes from final
approach fix and then full flaps prior to turning final or one dot from
glideslope intercept.

One of the glorious things about a Commander is that the flaps will always
come up (unlike electric flaps) so use them knowing you can always reduce if
needed -- so use more, and earlier than you are now.

I doubt that you'll need to reduce flap setting unless you go One Engine
Inoperative.

But something else is going on here. The Aero Dynamic clean up gave you 6
KIAS at cruise but the sudden increase in speed prior to touchdown makes me
wonder about pitot/static changes that may have taken place with all of your
"clean up" work.

Do you have GPS? Can you get out on an ISA day with no wind and check GPS
ground speed vs. indicated? No wind at PAO is a lot to ask for, but now is the
time to find a cool, sea level day.

I'd be curious about your IAS at different deck angles in approach
configuration and full landing configuration and the GPS Ground Speed would help spot
whether your indicated speeds are way out of whack.

Also, having just been painted, check out your static ports; even your pitot
tubes if they were removed or had paint applied near them.

One thing I've learned taking 4 Falcons throught RVSM is how critical all
that stuff is.

Wing Commander Gordon
Godless Heathen / Non-Aircraft Owner / Like this site best

Life is not simple anywhere. Probably less so elsewhere.


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john(at)vormbaum.com
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PostPosted: Sat Jan 21, 2006 2:47 pm    Post subject: Final Flaps Reply with quote

Keith,

Thanks for the suggestions. I'll practice using the flaps earlier & more
than I am now. I also hadn't considered the possible pitot/static
implications. I'll definitely have to find a calm ISA day (haha, probably
not at PAO!) to test these theories out.

In any case, you guys have all given me something to occupy a couple of
hours of flying time. And you all know how much you have to twist my arm to
go fly! Smile

Thanks again to all for the input.

/John
---


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