What does the abreviation "HAT" stand for in relation to a landing pattern? I guess height in feet above what?
Thanks in advance as always!!
HAT feet in relation with landing pattern profile?
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- Staff Sergeant
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Re: HAT feet in relation with landing pattern profile?
Height above touchdown.
Cheers Chris
Cheers Chris
Re: HAT feet in relation with landing pattern profile?
Height Above Threshold
Flight Simmer since 1983. PP ASEL IR Tailwheel
N28021 1979 Super Viking 17-30A
N28021 1979 Super Viking 17-30A
- Great Ozzie
- A2A Test Pilot
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Re: HAT feet in relation with landing pattern profile?
Hi francesco,
These definitions can be found in the Aeronautical Information Manual (AIM) - download on the FAA's Air Traffic Plans and Publications page.
---------
HEIGHT ABOVE TOUCHDOWN− The height of
the Decision Height or Minimum Descent Altitude
above the highest runway elevation in the touchdown
zone (first 3,000 feet of the runway). HAT is
published on instrument approach charts in conjunction
with all straight-in minimums.
TOUCHDOWN ZONE ELEVATION− The highest
elevation in the first 3,000 feet of the landing surface.
TDZE is indicated on the instrument approach
procedure chart when straight-in landing minimums
are authorized.
These definitions can be found in the Aeronautical Information Manual (AIM) - download on the FAA's Air Traffic Plans and Publications page.
---------
HEIGHT ABOVE TOUCHDOWN− The height of
the Decision Height or Minimum Descent Altitude
above the highest runway elevation in the touchdown
zone (first 3,000 feet of the runway). HAT is
published on instrument approach charts in conjunction
with all straight-in minimums.
TOUCHDOWN ZONE ELEVATION− The highest
elevation in the first 3,000 feet of the landing surface.
TDZE is indicated on the instrument approach
procedure chart when straight-in landing minimums
are authorized.
Rob Osborne
Flight Instructor - CFI, CFII, MEI, MEII
A & P Mechanic
FAASTeam - Safer Skies Through Education
Professionalism in aviation is the pursuit of excellence through discipline, ethical behavior and continuous improvement. NBAA
Flight Instructor - CFI, CFII, MEI, MEII
A & P Mechanic
FAASTeam - Safer Skies Through Education
Professionalism in aviation is the pursuit of excellence through discipline, ethical behavior and continuous improvement. NBAA
Re: HAT feet in relation with landing pattern profile?
Doh, I thought it was threshold! That is an important distinction.
Flight Simmer since 1983. PP ASEL IR Tailwheel
N28021 1979 Super Viking 17-30A
N28021 1979 Super Viking 17-30A
- Great Ozzie
- A2A Test Pilot
- Posts: 2054
- Joined: 16 Feb 2008, 15:49
- Location: KUMP
Re: HAT feet in relation with landing pattern profile?
Not long ago I think it was that Oracle... now Height Above Threshold is HATh.
Rob Osborne
Flight Instructor - CFI, CFII, MEI, MEII
A & P Mechanic
FAASTeam - Safer Skies Through Education
Professionalism in aviation is the pursuit of excellence through discipline, ethical behavior and continuous improvement. NBAA
Flight Instructor - CFI, CFII, MEI, MEII
A & P Mechanic
FAASTeam - Safer Skies Through Education
Professionalism in aviation is the pursuit of excellence through discipline, ethical behavior and continuous improvement. NBAA
Re: HAT feet in relation with landing pattern profile?
Thanks, I was surprised by the new terminology.
Flight Simmer since 1983. PP ASEL IR Tailwheel
N28021 1979 Super Viking 17-30A
N28021 1979 Super Viking 17-30A
Re: HAT feet in relation with landing pattern profile?
Height Above Tarmac is good enough for me.
-Esa
-Esa
- Nick - A2A
- A2A Captain
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Re: HAT feet in relation with landing pattern profile?
At least with Height Above Touchdown you know if should never be a negative number*. HATr (Height Above Trees) can be a bit more tricky. And in FSX some of those trees can grow real tall!
Nick
*Actually, come to think of it I'm sure there are some technical/momentary exceptions to that. A landing on the numbers at Lukla or Courchevel for instance...
Nick
*Actually, come to think of it I'm sure there are some technical/momentary exceptions to that. A landing on the numbers at Lukla or Courchevel for instance...
A2A Simulations Inc.
Re: HAT feet in relation with landing pattern profile?
You see all these high falutin names like height above touchdown could easily be altitude rather than height and ground rather than touchdown,which would give you AAG and if you got it wrong could easily be AAGH.
Cheers Chris
Cheers Chris
Re: HAT feet in relation with landing pattern profile?
I know it shouldn't be that funny Speedy, but you have to try and picture the body language and expression I imagine as you say this and it just gives me a serious case of giggles. AGG AAGH!
http://replygif.net/881
http://replygif.net/881
Flight Simmer since 1983. PP ASEL IR Tailwheel
N28021 1979 Super Viking 17-30A
N28021 1979 Super Viking 17-30A
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