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BAe 146/ RJ Vs 737 Classic Which Burn More Fuel?  
User currently offline747400sp From United States of America, joined Aug 2003, 4240 posts, RR: 2
Posted (9 years 4 months 3 weeks 5 days 11 hours ago) and read 9091 times:

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?

3 replies: All unread, jump to last
User currently offlineZeke From Hong Kong, joined Dec 2006, 10808 posts, RR: 76
Reply 1, posted (9 years 4 months 3 weeks 5 days 10 hours ago) and read 9074 times:

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.

We are addicted to our thoughts. We cannot change anything if we cannot change our thinking – Santosh Kalwar
User currently offlineThrottleHold From South Africa, joined Jul 2006, 738 posts, RR: 1
Reply 2, posted (9 years 4 months 3 weeks 4 days 19 hours ago) and read 9013 times:

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.

User currently offlineSlamClick From United States of America, joined Nov 2003, 10062 posts, RR: 66
Reply 3, posted (9 years 4 months 3 weeks 4 days 18 hours ago) and read 9000 times:

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.

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

Happiness is not seeing another trite Ste. Maarten photo all week long.
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