Landing Performance
04-15-2016, 08:54 AM
#11
Gets Weekends Off
Joined APC: Jun 2008
Posts: 3,716
Perhaps the answer should be influenced by what you would say to the feds if you go off the end.
http://avherald.com/h?article=486d8a3f&opt=0
http://avherald.com/h?article=486d8a3f&opt=0
04-19-2016, 12:08 PM
#13
Prime Minister/Moderator
Joined APC: Jan 2006
Position: Engines Turn Or People Swim
Posts: 39,293
Originally Posted by wildcat1
I thought the same thing about grooved runways, but that isn't true. According to AC 91-79A, only completely dry runways qualify for dry runway performance. If the manufacturer produces performance numbers for grooved runways, then you can use that number in lieu of the standard increased distance.
Not suggesting there's any general rule to that effect.
05-09-2016, 06:03 PM
#14
Gets Weekends Off
Thread Starter
Joined APC: Nov 2006
Posts: 136
Originally Posted by rickair7777
For my airplane the mfg. says use dry numbers for wet grooved runways, and I'm aware of others as well.
Not suggesting there's any general rule to that effect.
Not suggesting there's any general rule to that effect.
Some manufacturers provide supplemental FAA-approved AFM data for operation on wet grooved runways. Manufacturers
may also provide supplemental advisory landing distance data for conditions beyond those required by regulation; however, they are not used in lieu of the advised 15 percent safety margin.
http://www.faa.gov/documentLibrary/m.../AC_91-79A.pdf
may also provide supplemental advisory landing distance data for conditions beyond those required by regulation; however, they are not used in lieu of the advised 15 percent safety margin.
http://www.faa.gov/documentLibrary/m.../AC_91-79A.pdf
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