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Is The 757-200 Heavy Or Not?  
User currently offline*HighFlyah* From United States of America, joined Jun 2000, 184 posts, RR: 0
Posted (11 years 8 months 5 days 9 hours ago) and read 4337 times:

As far as I know, Heavy = MTOW >= 255,000 lbs.

I have not heard on ATC the 757-200 of UA, US, DL, AA and NW being called "Heavy" though ATA's 757-200 is "Heavy."

I was told before that ATA is "heavy" because of the single class configuration, causing the MTOW to go over 255,000 lbs. All the other major carriers have 2 class configurations and fewer overall passenger loads.

Am I right? I keep hearing that because of wake turbulence issues, 757s are now considered HEAVY too regardless of MTOW. What's the truth?

12 replies: All unread, jump to last
 
User currently offlineSxmarbury33 From United States of America, joined Oct 2000, 445 posts, RR: 0
Reply 1, posted (11 years 8 months 5 days 9 hours ago) and read 4316 times:

Its mainly for wake turbulance seperations. The 757 is not classified as a heavy by weight. It is classified heavy because the aerodynamic high lift wings produce much more wake turb than most non-heavy aircraft. this has led to a few planes being flipped as a result of following a 75 to close.

User currently offlineN766UA From United States of America, joined Jul 1999, 8371 posts, RR: 23
Reply 2, posted (11 years 8 months 5 days 9 hours ago) and read 4303 times:

How many billions of times are we gunna go over this? lol. jeeeez.

Only AmTran's 757-200s get called heavy, but all qualify because of the vorticies they produce. They aren't REALLY heavy though, except TZ.



This Website Censors Me
User currently offlineCactusA319 From United States of America, joined Jan 2000, 2918 posts, RR: 25
Reply 3, posted (11 years 8 months 5 days 9 hours ago) and read 4297 times:


The 757 is considered a heavy by ATC in terms of separation, i.e. controllers will space an aircraft behind a 757 the same distance as if it were a 747, 767, 777, etc. However, an aircraft only has to use the word "Heavy" in its callsign when MTOW is over 255,000. Most US airlines operating 757's have MTOW's just under 255K, so they won't use the designation. An airline like ATA, which packs 216 pax into their 752's routinely have flights that have an MTOW of 255 or above.



User currently offlineM717 From United States of America, joined Dec 2002, 608 posts, RR: 4
Reply 4, posted (11 years 8 months 5 days 9 hours ago) and read 4284 times:

The 757-200 is treated the same as a "heavy" by ATC for wake turbulence separation purposes.

User currently offlineFlygga From , joined Dec 1969, posts, RR:
Reply 5, posted (11 years 8 months 4 days 18 hours ago) and read 4126 times:

Besides ATA, Mexicana's 757's are "Heavies" as well.

User currently offlineUnited_Fan From United States of America, joined Nov 2000, 7540 posts, RR: 7
Reply 6, posted (11 years 8 months 4 days 16 hours ago) and read 4069 times:

All 757-300's are heavies...........


'Empathy was yesterday...Today, you're wasting my Mother-F'ing time' - Heat.
User currently offlinePER744 From Australia, joined Mar 2003, 405 posts, RR: 2
Reply 7, posted (11 years 8 months 4 days 16 hours ago) and read 4058 times:

It's just big boned! :-P

User currently offlinePositive rate From Australia, joined Sep 2001, 2143 posts, RR: 1
Reply 8, posted (11 years 8 months 4 days 15 hours ago) and read 4024 times:

It's due to wake turbulence. The 757 produces really viscous vortices which have led to some crashes in the past when aircraft follow too close behind.

User currently offlineUal777contrail From , joined Dec 1969, posts, RR:
Reply 9, posted (11 years 8 months 4 days 10 hours ago) and read 3910 times:

They are not, IMO


ual 777 contrail


User currently offlineFritzi From United Arab Emirates, joined Jun 2001, 2762 posts, RR: 2
Reply 10, posted (11 years 8 months 4 days 9 hours ago) and read 3899 times:

Ual777contrail,

Tell that to the Cessna 172 student pilot taking off behind a 757 at MTOW.  Laugh out loud


User currently offlineUal777contrail From , joined Dec 1969, posts, RR:
Reply 11, posted (11 years 8 months 4 days 4 hours ago) and read 3801 times:

fritzi,
you got a good point, look out!!!


ual 777 contrail


User currently offlinePositive rate From Australia, joined Sep 2001, 2143 posts, RR: 1
Reply 12, posted (11 years 8 months 4 days ago) and read 3736 times:

"Tell that to the Cessna 172 student pilot taking off behind a 757 at MTOW"

Better make that tell that to any pilots flying anything in the "light" to medium category, including light jets such as the Learjet/Citation which can just as easily be flipped upside down by a 757's wake as a 172 can.


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