An HMG is a "Hydraulic Motor Generator" (also can be referred to as an HDG 'hydraulic driven generator') an electric generator powered by the a/c hydraulic system to provide power for 'essential power' in the event of an electrical system failure. At least one HMG is normal equipment for ETOPs ("engines turning or people swimming") a/c. That is why, as stated before on the 737 they operate the APU during the flight to ensure they have a source of electric power in the event of a 'loss of AC Power'

For what its worth. Hope it helps.

DA

EREP is Extended Range Entry Point. You can call it a "coast-out safety point." This is the point where most things have to be working, like both packs, generators, IRS's, radar and other things have to be working to continue the flight. See your appropriate checklist. If something fails just after this point, you "may" continue the flight. Maybe not smart, but...... If it happens before this point you most continue to a suitable alternate.

ETP is not predicated on engines. It's usually related to CFS, or Critical Fuel Scenario. Usually this is total loss of pressurization and continuing at 10,000 ft. to an ETOPS alternate. If you think about it it makes sense. What burns more fuel? Two engines at 10000 ft. or one at FL240 or so?

I have only flown the 737 as a pilot...I agree, not very fun. But I have ridden in the back of a 73, 74, 75, 76, etc. and I also have to say...what's the difference?

Do you think Alaska would make more money if they added a few 757's to their soon to be common fleet type just to do HNL?
Everything you mentioned is all true, but on the other hand, how many US 737's have ditched because of ETOPS/Class 2 Nav? I'll bet none.
The bottom line is that Alaska is doing 3 flights to Hawaii and that is not enough to justify moving away from a common fleet type just to save some APU fuel and haul extra cargo. Personally, I'd love to get into the 75 to go to HNL, but it won't save us any money in the long run so it's not gonna happen.
PS: The back isn't any different...they both suck(unless you're up front drinking for free).

As QCappy quoted, this will cost us less money to fly our own a/c to Hawaii then put the passengers on other carriers. The thing I am concerned about is that the LIH-SEA flights will end up bing weight restricted. The runway there is only 6,500. But I am glad to see AS finally venture westward.

if memory serves, that's not much longer than DCA which is as long of a flight. i'm sure that there are going to be some more fuel issues, but, the new 800's with the new SFP package are awesome on short fields.

mahalo!!!
Mookie