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ScottishLaddie
Topic Author
Posts: 2309
Joined: Sat Jan 03, 2004 8:30 am

ATC 'heavies'

Thu Jan 08, 2004 3:04 am

When is 'heavy' added to an aircraft callsign. I presume it is when it is over a certain weight?? Any help is much appreciated.

 Smile/happy/getting dizzy
 
potomac
Posts: 692
Joined: Sat Jul 26, 2003 5:06 am

RE: ATC 'heavies'

Thu Jan 08, 2004 3:08 am

there was a discussion about this a while back, and a few people stated that it does in fact have to do with weight. though in my experience, it always seems like it is used for widebodies...
 
atcboy73
Posts: 1084
Joined: Sat Sep 08, 2001 10:09 am

RE: ATC 'heavies'

Thu Jan 08, 2004 3:22 am

"Heavy" is added to an aircraft call sign when that a/c has the capability of carrying over 255,000lbs.

We were memoed the other day that if a 757 callus himself a heavy we are supposed to term in heavy also.

In the past 757s got separated as if they were heavies but we didn't call them a heavy.

I guess some 757s have the capability of lifting 255,000lbs and some don't.
 
ntspelich
Posts: 740
Joined: Tue Aug 05, 2003 2:35 am

RE: ATC 'heavies'

Thu Jan 08, 2004 3:24 am

 
emorypilot
Posts: 41
Joined: Sat Dec 13, 2003 11:53 am

RE: ATC 'heavies'

Thu Jan 08, 2004 3:25 am

I thought it was changed to 300,000 lbs in the US?

MGG
 
ScottishLaddie
Topic Author
Posts: 2309
Joined: Sat Jan 03, 2004 8:30 am

RE: ATC 'heavies'

Thu Jan 08, 2004 3:30 am

Thanks for the info!  Big thumbs up
 
timz
Posts: 6581
Joined: Fri Sep 17, 1999 7:43 am

RE: ATC 'heavies'

Thu Jan 08, 2004 3:36 am

"I thought it was changed to 300,000 lbs in the US?"

I thought it was changed from 300,000 lb.

Also, it doesn't refer to the plane's actual weight at the moment.
 
Lt-AWACS
Posts: 2120
Joined: Mon Jan 14, 2002 2:40 am

RE: ATC 'heavies'

Thu Jan 08, 2004 5:22 am

In the E-3 we are a "Heavy E-3" even though the 707 is narrow body. Of course we are way over 300,000lbs. The E-6 is heavy also.

Ciao, and Hook 'em Horns,
Capt-AWACS, Yankee Air Pirate
 
bucky707
Posts: 960
Joined: Sat Aug 19, 2000 2:01 am

RE: ATC 'heavies'

Thu Jan 08, 2004 5:32 am

Lt-AWACS, I seem to remember when I was flying the E-3 no one ever used the "heavy" callsign, not the pilots or ATC, even though the E-3 is a heavy. Has that changed?
 
Lt-AWACS
Posts: 2120
Joined: Mon Jan 14, 2002 2:40 am

RE: ATC 'heavies'

Thu Jan 08, 2004 5:35 am

In a word YES. ATC uses it all the time, as do almost every tower.
Sometimes the pilots don't and just use the Callsign- But the ARTCCs and tower pretty much always use 'heavy'.

Ciao, and Hook 'em Horns,
Capt-AWACS, Texas-It's Bigger than France
 
maiznblu_757
Posts: 4952
Joined: Fri Mar 01, 2002 12:05 pm

RE: ATC 'heavies'

Thu Jan 08, 2004 6:52 am

ATA uses Heavy in the callsign of their 752 and 753 flights.
 
maiznblu_757
Posts: 4952
Joined: Fri Mar 01, 2002 12:05 pm

RE: ATC 'heavies'

Thu Jan 08, 2004 6:55 am

LT AWACS, Sorry about the loss to WAZZOU.. LOL.. Not really..

Anyhow, on a side note, when I was stationed at Patuxent River, the E-6's used heavy all the time.. One of the greatest Callsigns ever to be heard on my scanner was "Balls 2 Heavy, clear for takeoff".

 
Mir
Posts: 19491
Joined: Mon Jan 05, 2004 3:55 am

RE: ATC 'heavies'

Thu Jan 08, 2004 11:07 am

Might it have something to do with wake turbulence generation?
 
ShortsFA
Posts: 57
Joined: Sat Dec 20, 2003 11:30 am

RE: ATC 'heavies'

Thu Jan 08, 2004 11:15 am

Heavy is for wake turbulence/separation between a/c.
 
APAOps5
Posts: 94
Joined: Fri Dec 19, 2003 1:37 pm

RE: ATC 'heavies'

Thu Jan 08, 2004 11:40 am

The 757-300 MGTOW is over the 255,000lb limit heavy designator, and I beleive the 757-200 at MGTOW in a one class config. is barely at or over 255,000lbs. However, as ATCboy73 mentioned the 757 is in what I would call a grey area. The impetus behind the heavy designator in the call sign is to distinguish to other a/c in sequence behind the "heavy" that the a/c is large and creates large wake tubulence vortices that could be fatal to a smaller a/c. It also helps ATC to know quickly if they need to space out traffic flows accordingly. For example, a 747 landing behind a 757 really wouldn't matter, but a Beech 1900 landing behind a 757 would want to know that and allow some time for the vortices to clear. I hope what I am saying is making some sense.
 
ScottishLaddie
Topic Author
Posts: 2309
Joined: Sat Jan 03, 2004 8:30 am

RE: ATC 'heavies'

Fri Jan 09, 2004 3:08 am

Thanks for all the replies. Smile
You're all so knowledgeable  Big thumbs up
 
gmonney
Posts: 2076
Joined: Fri Jan 12, 2001 2:59 pm

RE: ATC 'heavies'

Fri Jan 09, 2004 3:38 am

Ya from what i know its all aircraft that can cause wake turbalance for aircraft following or taking off behind. So its just a warning....but usually the tower will warn arriving or departing traffic of "possible wake turblance from a heavy 767,777,747...etc ahead"

Grant

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