Jackbr From Australia, joined Dec 2009, 652 posts, RR: 0 Reply 2, posted (2 years 1 week 2 days 12 hours ago) and read 3199 times:
I believe this thread should stay in the "Civil Aviation" forum where literally every other route/aircraft config thread I've made has stayed. Nothing in this thread has anything to do with "preferences" or "polls"
RoseFlyer From United States of America, joined Feb 2004, 8737 posts, RR: 52 Reply 11, posted (2 years 6 days 19 hours ago) and read 3011 times:
Quoting Jackbr (Reply 8): Do the 3 class aircraft ever appear on domestic routes as equipment subs?
Yes 3 class airplanes do sub on domestic routes. For example, there are no spare 2-class 777s. If one goes tech or gets extended maintenance, the only plane UA can sub is a 747, so you will sometimes see SFO-HNL being operated with 747s.
Out of the UA fleet, the most spares are with the Airbus fleet. I believe there are 6 spare Airbus narrowbodies in the network on an average day (compared with 4 spare 757s), so adding segments with them is the easiest.
Quoting JetBlue777 (Reply 9):
The 763 subbed for JFK is definitely a 3-Class A/C. Also, this summer the 3-Class 763 flies between ORD and DEN (usually in the early morning, 7 or 8)
If a PS airplane needs to be subbed out the preference is to use a 3 class 767. The configuration goes from 12-26-72 to 6-26-151, so there are a lot of extra economy seats. F is rarely full, so usually there are not downgrades. However the summer schedule only has 1 spare 3-class 767 our of the 21 3-class 767s, so the chances of that happening are low.
PS planes will occasionally be seen swapping for A319s on LAX-SFO routes.
If you have never designed an airplane part before, let the real designers do the work!