747400sp From United States of America, joined Aug 2003, 3301 posts, RR: 2 Posted (6 years 8 months 2 weeks 6 days 11 hours ago) and read 5148 times:
From what I have been reading. The P-3 replacement the Boeing P-8 is a 737800 with wings that has 767400er wing tip instead of the winglet that most 737NG have. I just wanted to be sure that I got the P-8 design right. So do the P-8 have 767400er wing tips? If so this will make it a interesting looking 737 NG.
N231YE From , joined Dec 1969, posts, RR: Reply 1, posted (6 years 8 months 2 weeks 6 days 11 hours ago) and read 5143 times:
I can't be too sure on the 767-400ER wingtips, given that the 737 and 767 have different wings. Maybe they will have raked wingtips instead of blended winglets, but I doubt it will be the 767-400ER's.
AeroWeanie From United States of America, joined Dec 2004, 1601 posts, RR: 52 Reply 3, posted (6 years 8 months 2 weeks 6 days 10 hours ago) and read 5145 times:
The APB winglets were dropped and it will have raked tips, looking like those on the 767-400ER, 777-200LR and 777-300ER.
747400sp From United States of America, joined Aug 2003, 3301 posts, RR: 2 Reply 4, posted (6 years 8 months 2 weeks 6 days 9 hours ago) and read 5128 times:
Quoting AeroWeanie (Reply 3): The APB winglets were dropped and it will have raked tips, looking like those on the 767-400ER, 777-200LR and 777-300ER.
AeroWeanie From United States of America, joined Dec 2004, 1601 posts, RR: 52 Reply 5, posted (6 years 8 months 2 weeks 6 days 6 hours ago) and read 5103 times:
KC135TopBoom From United States of America, joined Jan 2005, 11712 posts, RR: 52 Reply 7, posted (6 years 4 months 2 weeks 1 day 15 hours ago) and read 4812 times:
Quoting DEVILFISH (Reply 6): And another thing it will have is a new name - POSEIDON, Greek god of the sea.....
Good, I was afraid they would pick Madusa, the lady with the snakes for her hair.
JakeOrion From United States of America, joined Oct 2005, 1247 posts, RR: 2 Reply 10, posted (6 years 4 months 2 weeks 1 day 14 hours ago) and read 4785 times:
On the subject:
For this particular mission, is it a good idea to replace a prop with a jet? I mean, could speed of the aircraft hinder its searching abilities? Or it doesn't matter?
Thanks for the input, as I know nothing about this mission field.
Every problem has a simple solution; finding the simple solution is the difficult problem.
RichardPrice From , joined Dec 1969, posts, RR: Reply 13, posted (6 years 4 months 2 weeks 1 day 13 hours ago) and read 4763 times:
Quoting JakeOrion (Reply 10): For this particular mission, is it a good idea to replace a prop with a jet? I mean, could speed of the aircraft hinder its searching abilities? Or it doesn't matter?
The RAF Nimrod is one of the most successful maritime role aircraft in the past 50 years - its fantastic at its job mainly because its a jet. Hopefully, the P-8 will be as well.
Also, jet aircraft are harder to detect underwater (by subs etc) because its engines emit less low frequency sound and more higher frequency sound - the high frequency sound does not react well within the water boundaries.
Jet aircraft also have a hiogher dash speed, allowing them to get to patrol areas faster. Also in a search, the more area covered the better.
N328KF From United States of America, joined exactly 9 years ago today! , 6222 posts, RR: 3 Reply 14, posted (6 years 4 months 2 weeks 1 day 12 hours ago) and read 4755 times:
Quoting Cancidas (Reply 11): is the P-8 going to be based off the -700 or the -800 fuselage?
Think of the P-8 as a "737-800ER." Essentially, the BBJ2 airframe except with raked wingtips.
For what it's worth, I think it'd be nifty to see raked wingtips as an option on other variants.
When they call the roll in the Senate, the Senators do not know whether to answer 'Present' or 'Not guilty.' T.Roosevelt
ZANL188 From United States of America, joined Oct 2006, 3249 posts, RR: 0 Reply 15, posted (6 years 4 months 2 weeks 1 day 12 hours ago) and read 4743 times:
Quoting DEVILFISH (Reply 6): POSEIDON, Greek god of the sea.....
Or for students of pop culture... a ship that turns upside down... a bad thing for a long range patrol aircraft
Legal considerations provided by: Dewey, Cheatum, and Howe
Usnseallt82 From United States of America, joined Jan 2004, 4891 posts, RR: 55 Reply 17, posted (6 years 4 months 2 weeks 1 day 9 hours ago) and read 4702 times:
Quoting RichardPrice (Reply 13): Jet aircraft also have a hiogher dash speed, allowing them to get to patrol areas faster. Also in a search, the more area covered the better.
The only problem we're running into is the need for our P-3's to be on station and at low altitudes for long periods of time. The P-8 won't be near as efficient at these altitudes, so new technology will be included in the package to counter this.
Arluna From United States of America, joined Jun 2006, 81 posts, RR: 1 Reply 18, posted (6 years 4 months 2 weeks 1 day 4 hours ago) and read 4650 times:
The P-8 in the picture doesn't have a MAD boom. Has the Navy decided that the MAD boom is not needed or has the technology for detecting magnetic anomalies advanced enough that the boom isn't needed?
Usnseallt82 From United States of America, joined Jan 2004, 4891 posts, RR: 55 Reply 22, posted (6 years 4 months 2 weeks 13 hours ago) and read 4557 times:
Quoting Arluna (Reply 18): Has the Navy decided that the MAD boom is not needed or has the technology for detecting magnetic anomalies advanced enough that the boom isn't needed?
Won't be needed like it used to be. New technology.
Quoting AsstChiefMark (Reply 19): Is this the same as the 737MMA? The one that's equipped with under-wing missiles and a bomb bay?
AeroWeanie From United States of America, joined Dec 2004, 1601 posts, RR: 52 Reply 23, posted (6 years 4 months 1 week 2 days 14 hours ago) and read 4432 times:
From the Correspondence column of the January 1, 2007 issue of Aviation Week & Space Technology:
I take exception to comments attributed to Boeing Vice President Jack Zerr in the article "Know Your COTS" (AW&ST Nov. 27, 2006, p.78).
It was stated that 737 blended winglets were magnets for ice buildup on long patrols in arctic regions. This statement is without basis in fact; extensive flight experience never has shown icing to be an issue for the 737-800 with blended winglets. Our analysis indicates that even in severe icing, the consequences of any ice buildup for performance and safety would be less significant for the winglet configuration. And, blended winglets increase fuel efficiency by as much as 7% while the raked-tip performance is about half that number.
Icing has never been an issue and if it had been, there are inexpensive anti-icing systems available for blended winglets. The expense associated with a new aerodynamic wingtip shape for the Boeing P-8A derivative is unneccessary when a 3-hr. flight test on a stock 737-800 would prove the point. The use of blended winglets is the best and cheapest solution for the P-8A.
Joe Clark, CEO
Aviation Partners, Inc.
Seattle, Wash.
N328KF From United States of America, joined exactly 9 years ago today! , 6222 posts, RR: 3 Reply 24, posted (6 years 4 months 1 week 2 days 13 hours ago) and read 4413 times:
He's just trying to justify his bread and butter. Blended winglets save 3.5-4.5% fuel burn, while raked wingtips save 5.5%—see http://en.wikipedia.org/wiki/Wingtip_devices for more info and links to Boeing and NASA flight testing.
When they call the roll in the Senate, the Senators do not know whether to answer 'Present' or 'Not guilty.' T.Roosevelt
25 Aeroweanie: N328KF: No, Joe is right. The blended winglets are fully certified for flight into known icing. The NASA data you refer to is for first generation win
26 Sidishus: The best thing about the P-8 wings is that the wet tanks are being reengineered to reduce the threat of hydrodynamic ram from battle damage. This aint
27 SP90: I thought that thing sticking out the back was the MAD? Maybe technology advancements has allowed them to make it smaller/shorter?
28 DEVILFISH: Speaking of new technology, the Navy now wants to include a major system upgrade before the Poseidon detailed design is frozen..... http://www.flight
Sponsor Message: 
From United States of America, joined Aug 2003, 3301 posts, 
From Philippines, joined Jan 2006, 4429 posts, 
From Poland, joined Jul 2003, 4112 posts, 
From , joined Dec 1969, posts, 
, 6222 posts, 
Sponsor Message: 
Printer friendly format
