jayunited wrote:JFKalumni wrote:My personal feeling, I believe a HGW 78X is coming within the next few years. It would be perfect for LAX, ORD, IAD to Asia while the non HGW versions handle the heavy Trans Atlantic traffic. Leave the 777-300’s inside EWR and SFO, move the 787-8’s and 9’s to DEN and IAH. The standard 78X can also sub as a high density on certain routes. EWR-SJU comes to mind especially considering the 767-400ER’s fate is still unknown.
I have to disagree with you on this because what you are describing is an entirely different aircraft than what the 78X represents today. Also UA does not have enough 77Ws in the fleet to cover all of EWR/SFO to Asia (pre-COVID not including SIN).
The 78X can accommodate the same fuel load as a 789. However when you begin operating a 78X on routes 12.5+ hours or longer with a full passenger cabin (in UA's case 318 passengers) that translates into 430 and some cases (especially during summer) can go up to around 630-700 bags, you can't take any cargo because the aircraft is maxed out or nearly max out. You have either A: hit MZFW or B: MTOG. With 600 bags and a full passenger cabin if you were operating lets say EWR-FRA the 78X could still handle 35,000-45,000 pounds of cargo with weight to spare.
Pre-COVID UA's 77Es and 789s that operated ORD, LAX, IAD, and SFO Asia (not including SIN) could accommodate 276 passengers (77E), or 252 passenger (789) with around 25,000-40,000 pounds of cargo. (Cargo varies depending on type of aircraft, route, and time of year among other things.) In my opinion for a hypothetical HGW 78X to do the same job as our 77Es you would need to get at least another 70,000 to perhaps even 100,000 pounds of MTOG. The MZFW would need to be increased as well.
How much untapped potential does the landing gear, the wing box and wings on the 787 have left?
Just for arguments sake lets say the pandemic starts to wane by Summer or 2021 and we're in a full blown recovery by 2022, would UA be interested in acquiring some second hand 77Ws? Seems there might be a decent amount of 77W's coming available that might be younger than ten years of age. They might be good replacements for older Pratt powered 777-222ERs.