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What Is The Difference Between ER/ERX/LR/X?  
User currently offlineJiml1126 From , joined Dec 1969, posts, RR:
Posted (13 years 2 months 1 week 3 days 5 hours ago) and read 2317 times:

Anybody know what's the difference between

ER = Extended Range
ERX = Extended Range .....
LR = Long range


Like B777-200LR/B777-300ER (I think they're the same)
and B767-400ER/B767-400ERX (I suppose one of them flies longer)

And what does X (like 767-400ERX) means?

4 replies: All unread, jump to last
 
User currently offlineJiml1126 From , joined Dec 1969, posts, RR:
Reply 1, posted (13 years 2 months 1 week 2 days 13 hours ago) and read 2291 times:

No one knows whats the difference?

User currently offlineN863DA From United States of America, joined Sep 2004, 48 posts, RR: 6
Reply 2, posted (13 years 2 months 1 week 2 days 12 hours ago) and read 2283 times:

-200 = regular range
-200ER = extended range
-200ERX = extended range but still in planning states (like 7X7)
-200LR = Super Duper Extended Range (Long Range)

FLY DELTA JETS and sail UNITED STATES LINES



N 8 6 3 D A


User currently offlineJiml1126 From , joined Dec 1969, posts, RR:
Reply 3, posted (13 years 2 months 1 week 2 days 12 hours ago) and read 2281 times:

hehe, thank you for the answer, N863DA.

But I thought ER and LR are the same.


User currently offlineN863DA From United States of America, joined Sep 2004, 48 posts, RR: 6
Reply 4, posted (13 years 2 months 1 week 2 days 12 hours ago) and read 2282 times:

-200ER = extended range
-200ERX = still in experiemental - presumably to become the LR eventually.
-200LR = It may instead stand for longer range?

Either way the 777-200ER has less range (around 1500nm or 2000nm less, I believe) than the 777-200LR... the new, 'next-generation' 777.

As I say, I assume that the 767-400ERX will become the 767-400LR when it's launched. (This is just an educated guess, however)

All of them, of course, have super spiffy jolly extended range - just some have more than others.  Smile

FLY DELTA JETS and sail UNITED STATES LINES



N 8 6 3 D A


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