amcnd

Interesting because OO did with there first 5 E175’s.... (all were delivered with old winglets) and i guess all those old 757’s that have winglets now shouldn’t have gotten them... its a easy mod...

flyboy94

NO they do not

Wilfortina

It’s not an easy mod because they aren’t winglets. They’re extended wingtips and need extra wing reinforcement is what I was told

Taco280AI

If Delta would just staple all of us CP pilots to the bottom of their list we could just put an end to all these rumors. That'd be great. A220, sign me up!

Sieve

Correct as far as I can tell. Republic has done it, with some of the YX tail AA birds. 414YX and 415YX stick out in my mind as having been delivered with the old winglets, and now have the newer extended wingtips. I think 416 or 417 was the first tail to come from the factory with the new extended wingtips, but I can't be certain.

Maybe any potential wing modification would be too impractical/expensive on any older frame than ones made around that time?

Tpinks

Clearly your reading comprehension needs some work. I specifically said that it was likely that the single plane that I referenced was close enough in construction numbers to allow that. i don't believe the Skywest claim unless you show two photos of the same plane with both winglets in service. Otherwise, I would say all aircraft prior to MSN 392 were modified by Embraer prior to delivery.

If any plane could have it done, then why has the largest Ejet user in the world not converted every single one of theirs? It's a 6% fuel savings gain for an enhance aircraft vs non enhanced.

The compass planes are some of the oldest 175's out there. They are also a completely different weight variant compared to every "enhanced" 175. There are no high gross weight EWT aircraft as far as I know.

Since you didn't believe me the first time, I'll go technical on ya.

The Enhanced E175 which features the Enhanced Wingtip along with other modifications are aircraft that incorporate Service Bulletin 170-57-0058.

SB 170-57-0058 is ONLY found on the following aircraft Serial numbers:
17000366, N437YX, see below
17000376 thru 17000378, N413YX-415YX
17000381 thru 17000387, 416YX-422YX
17000388, N88301
17000390, N103SY
17000392 and on

It appears MSN 366, which became N437YX was a test bed for Embraer for the "enhanced" program as it does not fit in with the normal construction numbers. MSN 365 and 367 are 403YX and 404YX respectively, both featuring the old winglets.

It also appears starting with MSN 392, every delivered 175 incorporated SB 170-57-0058. Msn 391 was the last "original winglet" 175 delivered and was to an Asian carrier.


Airbus did the same thing. Prior to a certain number, Sharklets can't be retrofitted.

Nerd rant over.

fortyeight

Makes sense. I was told many years ago that the older aircraft didn’t have the same interior wing structure and wouldn’t allow for the extended winglets. Otherwise, as you’ve noted, there’s no way Republic and Mr. Penny Pitchers wouldn’t have retrofitted every single wing.

sqwkvfr

Haha!

The last people to severely underestimate the IBT’s ability to represent during a SLI process were FAPA and RJET. Ask around how that went.

Viking6

I don’t think it went as many at YX thought it would. No YX pilots were ever allowed on the F9 certificate. It could also be argued that many junior YX pilots did not fair well in the SLI. Regardless any integration would be fair and equatable, and some on both sides will get screwed.

sqwkvfr

The only reason that it wasn’t implemented is that Bedford made good on his promise to sell Frontier if it could not be operated separately. Some of the junior pilots did have a reason to carp, but overall that list was a huge win for IBT and a massive defeat for FAPA. To claim that ALPA would clean IBT’s clock in an SLI process is specious at best.