nwaflyer
Topic Author
Posts: 6
Joined: Sat Apr 17, 2004 8:08 am

What Does The Term "heavy" Mean?

Fri Jun 18, 2004 10:10 am

I seen and heard the word "heavy" used. What determines that an aircraft is "heavy"?

 
MD11LuxuryLinr
Posts: 1311
Joined: Tue Jul 22, 2003 8:34 am

RE: What Does The Term "heavy" Mean?

Fri Jun 18, 2004 10:13 am

Ha.. if it weighs over 250,000 pounds.. loaded..
Caution wake turbulence, you are following a heavy jet.
 
rockyracoon
Posts: 1048
Joined: Tue Oct 14, 2003 3:58 am

RE: What Does The Term "heavy" Mean?

Fri Jun 18, 2004 10:21 am

Heavy planes require larger spacing in airspace traffic patterns. THey're wake turbulance can really toss the smaller airliners around. Exception to the rule is the 752, sometimes it gets treated like a "heavy" due to it's strong wake turbulance, even though it is >250,00 lbs (some weigh 250+ ie: TZ).



peace
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ConcordeBoy
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Joined: Thu Feb 01, 2001 8:04 am

RE: What Does The Term "heavy" Mean?

Fri Jun 18, 2004 10:29 am

actually, it has to weigh over 255,000lbs
Faire du ciel le plus bel endroit de la terre c'est impossible sans Concorde!
 
MD11LuxuryLinr
Posts: 1311
Joined: Tue Jul 22, 2003 8:34 am

RE: What Does The Term "heavy" Mean?

Fri Jun 18, 2004 11:05 am

~" Exception to the rule is the 752, sometimes it gets treated like a "heavy" due to it's strong wake turbulence"~

Assuming you mean that all aircraft flying behind it are a minimum of 5 miles (IIRC) away because of wake turbulence, then yes. All 757s are treated that way.

As far as being 'heavy jets', for airlines like AA, UA, US, etc., the 752 is not.
Caution wake turbulence, you are following a heavy jet.
 
Brick
Posts: 1543
Joined: Wed Aug 04, 1999 11:08 am

RE: What Does The Term "heavy" Mean?

Fri Jun 18, 2004 12:43 pm

I have heard 752's be referred to as heavy just a few times in all of my years listening to ATC on United Airlines. The 753's are almost always referred to as heavys.

Mark
A noble spirit embiggens the smallest man...
 
calpilot
Posts: 881
Joined: Sun Oct 17, 1999 5:16 am

RE: What Does The Term "heavy" Mean?

Fri Jun 18, 2004 2:53 pm

MGTOW has to 255,000lbs. Not actual weight.
 
wilco737
Posts: 7275
Joined: Sun Jun 20, 2004 12:21 am

RE: What Does The Term "heavy" Mean?

Sun Jun 20, 2004 6:59 am

Hi you guys,

all of your posts were correct, but the "heavy" is just the wake turbulence category, which results of the weight!

There is light, medium and heavy. It is important for separation between the aircrafts. A 737 needs to be separated of a minimum of 2 minutes behind a heavy. Otherwise it can encounter these severe wake turbulence, which can bring you in unusual attitudes!! Like we saw on the AA 300 in NY! The encountered wake turbulence of e preceding 747 and we know what happened.

The B752 is also heavy, although its weight is not above the limit for the wake turbulence category, but the 752 has short wings and these short wings need to produce a lot of lift! And with this lift the wake turbulence are even worse! So a 752 is heavy!

In ATC Communication they use the word HEAVY to make sure, that there is sufficient separation between the aircrafts...

WILCO737

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