More on the engines.. Forgot there was a -7B18, but it's so low-powered in comparison with the rest that nobody's ordered any. The only -7B20s that are flying are on the 600s.
DCA-SEA? Hey, I never said they'd make it *back*...
Just picked that city-pair as a WAG, but you already have the concept. Sorry I misunderstood your question.
>>Essentially, this is where my head is at. It does seem that it would be much easier to put a 737-900 overweight, than a 737-800, because the MTOW is more-or-less the same, but the 739 can carry more passengers and freight. So, I was wondering if the figures Boeing gave were really realistic. In other words, can the plane be operated with a full load of fuel, cargo and passengers in most situations?
OK, got you know. Yes, it would be easier to put a -900 overgross than a -700 (AS doesn't show any -800s on order). Since their -700s and -900s share the same engine variant, it's reasonable to assume that the takeoff performance will be similar. The big difference will come to play in the operational empty weight (OEW) of the two aircraft. I don't know the precise difference between the respective OEWs, but assuming it was, say, 6,000 lbs, that's 6,000 in payload that the -900 can't carry, at least at the max range of the aircraft. If Alaska was to operate their -900s on shorter (2000nm versus 3000nm) flights, they'd probably be able to do it and take that 6,000 lbs. I have no specific performance numbers, so these are just theoretical examples.
>>>I know Alaska has expressed displeasure concerning the 737-900 cargo capacity. The strange thing is, Boeing claims the 737-900 can carry MORE cargo than either the 800 or the 757-200. So, why is Alaska not pleased? It seems to be the only answer is that the plane isn't going to be able to carry a full load of passengers and cargo at the same time.
The 757 is truly an icredible performer, and according to Boeing's website info, the -900 does have more space than the 757-200. BTSOOM as to why AS is unhappy--maybe they just expected a 757 at a 737 price... Be curious to see how the -900s do once they get into actual service...
ALL views, opinions expressed are mine ONLY and are NOT representative of those shared by Southwest Airlines Co.