Embarrasingly Dumb question about non-precision approach

Ask questions about flying techniques here. Real or Simulated - the principles are the same!

Embarrasingly Dumb question about non-precision approach

Postby snippyfsxer » Sat Jul 10, 2010 3:00 pm

OK, so let us say that I'm flying an approach where I start the stopwatch at the FAF and time myself to the MAP.
Last edited by snippyfsxer on Sat Jul 10, 2010 3:02 pm, edited 1 time in total.
snippyfsxer
1st Lieutenant
1st Lieutenant
 
Posts: 404
Joined: Mon Nov 09, 2009 6:33 pm

Re: Embarrasingly Dumb question about non-precision approach

Postby snippyfsxer » Sat Jul 10, 2010 3:09 pm

My question already assumes ground speed is a known and has nothing to do with that or spatial awareness.
Last edited by snippyfsxer on Sat Jul 10, 2010 3:50 pm, edited 1 time in total.
snippyfsxer
1st Lieutenant
1st Lieutenant
 
Posts: 404
Joined: Mon Nov 09, 2009 6:33 pm

Re: Embarrasingly Dumb question about non-precision approach

Postby WPadgett » Sat Jul 10, 2010 3:55 pm

Yes.
CP - ASMEL, instruments
WPadgett
2nd Lieutenant
2nd Lieutenant
 
Posts: 75
Joined: Sun Sep 13, 2009 4:57 pm

Re: Embarrasingly Dumb question about non-precision approach

Postby -Crossfire- » Sat Jul 10, 2010 5:25 pm

Yes.


+1

Just make up your own time as close to the middle as you can between 130 and 150 kts.  Make sure you do it in your approach breifing so you're ahead of the game.
Image
-Crossfire-
Captain
Captain
 
Posts: 966
Joined: Wed Mar 01, 2006 2:42 am
Location: Northern Canada

Re: Embarrasingly Dumb question about non-precision approach

Postby aeroart » Sun Jul 11, 2010 10:49 am

Fly your airplane at its proper final approach airspeed. Add or subtract the headwind or tailwind component. See where that ground speed falls (proportionally) between adjacent values given in the "FAF to MAP" table. Estimate the time based on the values in the "Min:Sec" row of the table.

Art
User avatar
aeroart
2nd Lieutenant
2nd Lieutenant
 
Posts: 99
Joined: Tue Sep 29, 2009 7:30 pm
Location: Michigan

Re: Embarrasingly Dumb question about non-precision approach

Postby Brett_Henderson » Mon Jul 12, 2010 6:46 am

A big limitation to keep in mind, is that the visibility/ceiling limit for the highest speed on the chart. If you improvise a higher approach speed, you're effectively increasing those limits too. In other words.. a non-precision approach for a heavy/fast airplane, will be near VFR conditions. In other OTHER words.. if the conditions are at minimum for a slower airplane; the runway isn't even available to you.
Last edited by Brett_Henderson on Mon Jul 12, 2010 6:46 am, edited 1 time in total.
Brett_Henderson
Major
Major
 
Posts: 3403
Joined: Fri Oct 08, 2004 7:09 am


Return to Flight School

Who is online

Users browsing this forum: No registered users and 318 guests