Sponsor Message:
Military Aviation & Space Forum
My Starred Topics | Profile | New Topic | Forum Index | Help | Search 
CFM56-7B Military Power On P8A?  
User currently offlinebrons2 From United States of America, joined Sep 2001, 3017 posts, RR: 4
Posted (3 years 3 months 6 days 4 hours ago) and read 6001 times:

Hello, my question is a fairly simple one. Does the CFM56-7B on the P8A Poseidon have an additional military power rating that is above and beyond the 27,000 lbs the engine develops in airline service?

TIA,
Jim


Firings, if well done, are good for employee morale.
14 replies: All unread, jump to last
 
User currently offlineDreadnought From United States of America, joined Feb 2008, 8951 posts, RR: 24
Reply 1, posted (3 years 3 months 5 days 18 hours ago) and read 5870 times:

Quoting brons2 (Thread starter):
Does the CFM56-7B on the P8A Poseidon have an additional military power rating that is above and beyond the 27,000 lbs the engine develops in airline service?

I don't know, but you have to love the idea of a 737 with bomb bay doors.

My other thought is why a jet? Wouldn't a more modern turboprop be more suitable for low/slow sub-hunting? How about adapting the C-130 for the job?



Veni Vidi Castratavi Illegitimos
User currently offlinebikerthai From United States of America, joined Apr 2010, 2197 posts, RR: 4
Reply 2, posted (3 years 3 months 5 days 17 hours ago) and read 5834 times:

Quoting Dreadnought (Reply 1):
My other thought is why a jet?

Not just a jet . . . a 737!

Cost is a major factor. The 737 is built on an existing commercial line with mostly commercial components and processes. Spares and other support can be obtained though the world wide spares net work etc ...

True, a jet is not as efficient at low speed, but it can get there faster thus reducing the search area required.

Other than the C-130 or A-400, there are no turboprop out there that can match the volume. And even though the volume of the P-8 is bigger than the P-3, the amount of "stuff" they are putting on make them want a larger airframe 

BTW does the US make any modern commercial turboprop any more?

bikerthai.



Intelligent seeks knowledge. Enlightened seeks wisdom.
User currently offlinelitz From United States of America, joined Dec 2003, 1788 posts, RR: 0
Reply 3, posted (3 years 3 months 5 days 14 hours ago) and read 5771 times:
Support Airliners.net - become a First Class Member!

C-130J is more than a bit modern ...

User currently offlineKC135TopBoom From United States of America, joined Jan 2005, 12179 posts, RR: 51
Reply 4, posted (3 years 3 months 3 days 12 hours ago) and read 5525 times:

The P-8A is air refuelable with a Boom equipped Tanker. It is also not replacing the P-3C on the ASW missions, but replace the EP-3E on some of its missions. The P-8A is also better at detecting modern SSKs than the P-3C is.

The CFM-56-7B27C engine develope 27,300 lbs of maximum thrust, and does have an emergency thrust that is well above the maximum .


User currently offlineredflyer From United States of America, joined Feb 2005, 4376 posts, RR: 28
Reply 5, posted (3 years 3 months 1 day 20 hours ago) and read 5190 times:

Quoting Dreadnought (Reply 1):
but you have to love the idea of a 737 with bomb bay doors.

Makes one fantasize about other civil aircraft that could be "militarized"...how about an A380 with bomb bay doors and other ordinance carrying capabilities? Ah, so nice to day dream!  



My other home is a Piper Cherokee 180C
User currently offlineMax Q From United States of America, joined May 2001, 4779 posts, RR: 19
Reply 6, posted (3 years 3 months 5 hours ago) and read 4958 times:

Does the P8 carry additional fuel in auxiliary tanks ?


The best contribution to safety is a competent Pilot.
User currently offlinerwessel From United States of America, joined Jan 2007, 2411 posts, RR: 2
Reply 7, posted (3 years 2 months 4 weeks 1 day 14 hours ago) and read 4839 times:
Support Airliners.net - become a First Class Member!

Quoting Max Q (Reply 6):
Does the P8 carry additional fuel in auxiliary tanks ?

Yes it does. I've read six additional tanks, which would lead me to expect that they're just the standard 737 cargo deck aux tanks.


User currently offlineStitch From United States of America, joined Jul 2005, 31396 posts, RR: 85
Reply 8, posted (3 years 2 months 4 weeks 20 hours ago) and read 4737 times:
Support Airliners.net - become a First Class Member!

Quoting redflyer (Reply 5):
Makes one fantasize about other civil aircraft that could be "militarized"...
Boeing 747-200 ALCM Launch Vehicle


User currently offlineEskimotail From United States of America, joined Mar 2010, 36 posts, RR: 2
Reply 9, posted (3 years 2 months 4 weeks 18 hours ago) and read 4702 times:

Quoting rwessel (Reply 7):
Yes it does. I've read six additional tanks, which would lead me to expect that they're just the standard 737 cargo deck aux tanks

P8 has a total of 7 aux tanks, 10 fuel tanks total. They are not the standard 737 cargo deck aux fuel tanks that BBJ and other military 737s carry. Tactical aircraft vs logistics aircraft = major delta.

Quoting KC135TopBoom (Reply 4):
not replacing the P-3C on the ASW missions, but replace the EP-3E on some of its missions.

EP-3 replacement not ordered yet by USN, P8 is a direct 1 for 2 replacement for the P3C in ASW role.

Quoting Dreadnought (Reply 1):
My other thought is why a jet? Wouldn't a more modern turboprop be more suitable for low/slow sub-hunting? How about adapting the C-130 for the job

Why does a sub hunt have to be done low and slow? The detection mechanisms are remote from the airplane once deployed. Can't share specificly but P8 in its final blocks or tranches will not prosecte ASW in the way we know it now. A high altitude, cruise optimised power plant and wing with .88 MACH or better dash speed will be just fine, and capable of things that a C-130 can not do. Read up on all the available releases and articles over the last 7 years and it will become clear.


User currently offlineMax Q From United States of America, joined May 2001, 4779 posts, RR: 19
Reply 10, posted (3 years 2 months 4 weeks 10 hours ago) and read 4655 times:

A 737 capable of .88 Mach ?


The best contribution to safety is a competent Pilot.
User currently offlineEskimotail From United States of America, joined Mar 2010, 36 posts, RR: 2
Reply 11, posted (3 years 2 months 4 weeks 6 hours ago) and read 4622 times:

Quoting Max Q (Reply 10):
A 737 capable of .88 Mach ?

oops, too many eights. sorry.


User currently offlineMax Q From United States of America, joined May 2001, 4779 posts, RR: 19
Reply 12, posted (3 years 2 months 3 weeks 6 days 13 hours ago) and read 4523 times:

Eskimo,


Do you know how much fuel the P8 can carry altogether ?



Seems like an impressive Aircraft.



The best contribution to safety is a competent Pilot.
User currently offlineEskimotail From United States of America, joined Mar 2010, 36 posts, RR: 2
Reply 13, posted (3 years 2 months 3 weeks 3 days 18 hours ago) and read 4314 times:

Quoting Max Q (Reply 12):

Do you know how much fuel the P8 can carry altogether

Approx 70 ,000 pounds, 10,600 gallons. Give or take.


User currently offlineMax Q From United States of America, joined May 2001, 4779 posts, RR: 19
Reply 14, posted (3 years 2 months 3 weeks 3 days 10 hours ago) and read 4243 times:

Quoting Eskimotail (Reply 13):

Approx 70 ,000 pounds, 10,600 gallons. Give or take.

Almost as much as a 757, that should give it impressive endurance.



The best contribution to safety is a competent Pilot.
Top Of Page
Forum Index

Reply To This Topic CFM56-7B Military Power On P8A?
Username:
No username? Sign up now!
Password: 


Forgot Password? Be reminded.
Remember me on this computer (uses cookies)
  • Military aviation related posts only!
  • Not military related? Use the other forums
  • No adverts of any kind. This includes web pages.
  • No hostile language or criticizing of others.
  • Do not post copyright protected material.
  • Use relevant and describing topics.
  • Check if your post already been discussed.
  • Check your spelling!
  • DETAILED RULES
Add Images Add SmiliesPosting Help

Please check your spelling (press "Check Spelling" above)


Similar topics:More similar topics...
How Many Military Birds On A.Net Have You Flown? posted Tue Dec 25 2007 17:43:15 by KevinSmith
Favourite Military Pic On A.net/1000th Post posted Sun Oct 28 2001 19:27:09 by LY744
Married Pilots Hook Up On Military Refueling Missi posted Fri Jul 9 2010 12:28:15 by yanqui67
Obama's Effect On US Military Aviation posted Tue Feb 10 2009 20:12:10 by Mascmo
Military Channel Special On V-22 Osprey Tonight posted Mon Apr 7 2008 03:47:52 by CTR
Cargo/Military L-1011 At SAN On 6-30-07? posted Sun Jul 1 2007 02:46:17 by Smitty747
Strange Engine Choices On Military Aircraft posted Wed Jun 6 2007 23:28:04 by A342
Winglets On Military Bomber/Fighter Aircraft? posted Mon Feb 12 2007 15:12:59 by CF188A
Toilets On Military Planes? posted Mon Oct 16 2006 05:18:27 by LimaNiner
Boeing Has Lock On $8b In Military Contracts posted Wed Aug 16 2006 23:26:11 by RAPCON

Sponsor Message:
Printer friendly format