tiago701
Posts: 168
Joined: Thu Jun 29, 2006 4:35 am

Help - BBJ And ACJ Runway @ Mtwo

Thu Jul 26, 2007 9:24 am

Hey guys!

I am doing some research and comparison ,for a Uni project, between the BBJ and ACJ to start operations between LTN and MDW.

I found some contradictory results and would really appreciate some help here.

Can anyone help me with the correct data on the minimum runway length needed both for the BBJ1 (737-700) and the ACJ (A319) @ MTOW?

Also, how many people can be seated in each aircraft assuming a seat pitch of 60'? I know that Privatair seats around 48 passengers on the ACJ and 49 on the BBJ, but does anyone knows the seat pitch used?

Thank you very much for any help!

Tiago
 
Acey
Posts: 986
Joined: Wed Jun 27, 2007 2:06 pm

RE: Help - BBJ And ACJ Runway @ Mtwo

Thu Jul 26, 2007 2:33 pm

Until tomorrow, I'm too lazy to address your other concerns, but here's a chart for the BBJ on a dry runway:

http://i162.photobucket.com/albums/t262/949520/boeing.bmp.jpg

Similar charts are available from Boeing for all variants of the 737 with various engine options on both wet and dry runways.
If a man hasn't discovered something that he will die for, he isn't fit to live. -- Martin Luther King, Jr.
 
corey07850
Posts: 2335
Joined: Wed Feb 04, 2004 4:33 am

RE: Help - BBJ And ACJ Runway @ Mtwo

Thu Jul 26, 2007 4:02 pm

Quoting Tiago701 (Thread starter):
Can anyone help me with the correct data on the minimum runway length needed both for the BBJ1 (737-700) and the ACJ (A319) @ MTOW?

We don't dispatch our BBJ at max gross because we don't have a high occupancy cabin, but as a general rule, anything under 5750' will need chief pilot approval.

In case you're curious, our computer says 8:44 of flight time between EGGW-KMDW at FL410, TAS 430kts, and a 28kt headwind. Figure on $39,000USD to cover fuel, etc for the flight.

Hope this helps
 
Acey
Posts: 986
Joined: Wed Jun 27, 2007 2:06 pm

RE: Help - BBJ And ACJ Runway @ Mtwo

Thu Jul 26, 2007 5:25 pm

Quoting Corey07850 (Reply 2):
TAS 430kts

Wow, that's a lot slower than I thought BBJ's cruised at, even for long sectors. I was thinking 450 knots, 440 for the slowest.
If a man hasn't discovered something that he will die for, he isn't fit to live. -- Martin Luther King, Jr.
 
corey07850
Posts: 2335
Joined: Wed Feb 04, 2004 4:33 am

RE: Help - BBJ And ACJ Runway @ Mtwo

Thu Jul 26, 2007 5:55 pm

Quoting Acey (Reply 3):
Wow, that's a lot slower than I thought BBJ's cruised at, even for long sectors. I was thinking 450 knots, 440 for the slowest.

That's more or less what we use to estimate flight time and not necisarily what they actually fly at.
 
Acey
Posts: 986
Joined: Wed Jun 27, 2007 2:06 pm

RE: Help - BBJ And ACJ Runway @ Mtwo

Thu Jul 26, 2007 6:14 pm

Quoting Corey07850 (Reply 4):
That's more or less what we use to estimate flight time and not necisarily what they actually fly at.

Ahh, okay. Thanks. I think the rule of thumb with BBJ's is .80 or .79 for shorter legs, and then about .775 to .785 for longer legs.
If a man hasn't discovered something that he will die for, he isn't fit to live. -- Martin Luther King, Jr.
 
tiago701
Posts: 168
Joined: Thu Jun 29, 2006 4:35 am

RE: Help - BBJ And ACJ Runway @ Mtwo

Fri Jul 27, 2007 1:57 am

Thanks very much for your help!

Quoting Corey07850 (Reply 2):
In case you're curious, our computer says 8:44 of flight time between EGGW-KMDW at FL410, TAS 430kts, and a 28kt headwind. Figure on $39,000USD to cover fuel, etc for the flight.

What does the 39.000USD include apart from fuel? Is this value refering to all the costs associated with the flight, including operational, crew, etc?

Thanks again!
 
Acey
Posts: 986
Joined: Wed Jun 27, 2007 2:06 pm

RE: Help - BBJ And ACJ Runway @ Mtwo

Fri Jul 27, 2007 1:23 pm

Quoting Tiago701 (Reply 6):
What does the 39.000USD include apart from fuel? Is this value refering to all the costs associated with the flight, including operational, crew, etc?

Assuming jet fuel is about $2.17 per gallon, and on a 8.5 hour leg a BBJ would take maybe 44,000 pounds of fuel, and that a gallon of fuel weighs about 6.7 pounds, I get a total of only about $13,000. So the total must include a portion of landing fees, crew costs, any catering, costs at an FBO or whatever, and the rest. I know a charter company out of YYC charges based on a fixed hourly rate, so perhaps the same is done here.
If a man hasn't discovered something that he will die for, he isn't fit to live. -- Martin Luther King, Jr.

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