747400sp
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BAe 146/ RJ Vs 737 Classic Which Burn More Fuel?

Tue Jan 02, 2007 8:04 am

I have learned that engine numbers do not always matter, when it come to fuel burn. I wanted to know which burn more fuel, say on the SFO-LAX or LAS-LAX run, a BAe 146/ RJ or a 737 classic? I mean with the same amount of passengers of course. A BAe 146/ RJ has four engines, but the two CFM 56-3 on 737 classic or much bigger and more powerful. So which one burn more fuel?
 
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zeke
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RE: BAe 146/ RJ Vs 737 Classic Which Burn More Fuel?

Tue Jan 02, 2007 9:12 am

RJ70 would be 2000-2100 kg/hr 733 about 2100-2250 kg/hr

RJ70 is designed for going into smaller airports than the 733, with fewer noise considerations. The 733 is more designed for the route you requested.
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ThrottleHold
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RE: BAe 146/ RJ Vs 737 Classic Which Burn More Fuel?

Tue Jan 02, 2007 11:36 pm

Having flown both types, I can say hat there is very little difference in the total fuel flow/hour. The figures in the post above are about right.
 
SlamClick
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RE: BAe 146/ RJ Vs 737 Classic Which Burn More Fuel?

Wed Jan 03, 2007 12:26 am

Quoting 747400sp (Thread starter):
I have learned that



Quoting 747400sp (Thread starter):
fuel burn

...is not the only number you need.

While the trip fuel might be quite similar and cycles would be identical, flight time on the 737 ought to be substantially less. There is one saving.

Quoting 747400sp (Thread starter):
with the same amount of passengers of course

Now why on earth would you be running numbers on an almost-empty 737? The RJ carries 85 peeps. 737-300 should carry 8F and 128Y or, single class, as many as 140 or so. If it is dollars you are concerned with there is the significant number.

Then there is maintenance and dispatch reliability. We can talk all the THEORY we want here but here is an indisputable fact for you.

Twenty years ago there were BAe-146 and B-737 operating the very routes you ask about. Three airlines had the BAe, Royal, PSA and AirCal. Today there are none. But there still are 737s flying these routes.

Why?
Overall economics. Not just fuel burn, even in this day of higher fuel prices.
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