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Aviation > IFR – Instrument Flight Rules > Re: Asymmetrica...
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Re: Asymmetrical thurst

by Sam Spade <sam@[EMAIL PROTECTED] > Mar 19, 2008 at 07:28 AM

Jim Carter wrote:
> Watching the videos of the heavies crabbing to a landing in high cross
winds
> prompts me to ask: why don't they use asymmetrical thrust instead of
> kicking it straight in the flare?
> 
> Even in a single, why don't we see more forward slips to a landing
instead
> of crab, kick, and pray?
> 
> Have these techniques gone the way of the steam gauges?
> 

Using differential thrust would be asking for disaster.

The proper technique is fly the crab just as you would do an an ILS 
localizer to remain on course during a crosswind.  It is not a crab; 
rather, a coordinated flight wind correction (track vs heading.

Then, as the flare begins down aileron is placed into the wind as the 
opposite rudder is used to align the nose with the runway.  If down 
correctly, the wings remain level as the aircraft touches down, thus 
preventing an engine pod from scraping the runway.

It wasn't always taught this way, but has since at least 1980, or so. 
It had to be demonstrated on rating rides in the simulator with maximum 
certified crosswind for the airplane.
 




 19 Posts in Topic:
Asymmetrical thurst
Jim Carter <jim.carter  2008-03-10 23:34:39 
Re: Asymmetrical thurst
Matt Whiting <whiting@  2008-03-11 00:56:05 
Re: Asymmetrical thurst
"Mortimer Schnerd, R  2008-03-10 21:09:26 
Re: Asymmetrical thurst
Jay Maynard <jmaynard@  2008-03-11 01:16:14 
Re: Asymmetrical thurst
"John R. Copeland&qu  2008-03-10 21:13:48 
Re: Asymmetrical thurst
Jim Carter <jim.carter  2008-03-10 21:46:55 
Re: Asymmetrical thrust
"John R. Copeland&qu  2008-03-10 23:03:45 
Re: Asymmetrical thurst
"Capt. Geoffrey Thor  2008-03-11 21:29:00 
Re: Asymmetrical thurst
dane@[EMAIL PROTECTED] (  2008-03-24 15:08:23 
Re: Asymmetrical thurst
"Robert M. Gary"  2008-03-10 20:11:45 
Re: Asymmetrical thrust
"John R. Copeland&qu  2008-03-10 23:43:14 
Re: Asymmetrical thrust
Bill Watson <Mauledriv  2008-03-11 18:34:45 
Re: Asymmetrical thrust
"John R. Copeland&qu  2008-03-11 20:48:36 
Re: Asymmetrical thrust
Bill Watson <Mauledriv  2008-03-11 21:00:02 
Re: Asymmetrical thurst
"Kobra" <kob  2008-03-12 09:02:36 
Re: Asymmetrical thrust
"Mortimer Schnerd, R  2008-03-12 10:55:43 
Re: Asymmetrical thurst
Bill Watson <Mauledriv  2008-03-12 11:46:25 
Re: Asymmetrical thurst
"Stubby" <Wi  2008-03-12 16:22:47 
Re: Asymmetrical thurst
Sam Spade <sam@[EMAIL   2008-03-19 07:28:53 

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tan12V112 Wed Dec 3 18:00:32 CST 2008.