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#11
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Another Ancient Military Plane Grounded
On Dec 18, 1:14 pm, WolfRat wrote:
A far as "bang for the buck" the B-52 is the best airplane the Air Force ever purchased A friend of mine who's an aerospace engineer (used to work for McDonald Douglas) told me that the older design often has stronger structure than newer ones. He said in the old days the engineers had very few tools and models for stress analysis of complex structure, and they often overdesigned and resulted in planes that're much stronger than the certification calls for. These days with advanced computer model, if the certification calls for say max 3.8G and the design goal is 15% above the certification limit, the engineers can come up with a structure that'll break very close 4.4G, nothing more and nothing less. The benefit of this is lighter weight and better fuel efficiency, but it also means the structure is not as overbuilt as older planes. |
#12
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Another Ancient Military Plane Grounded
Aviation Week had a recent article on this. They said the P8-A Poseidon
is being developed as a replacement. I guess it's a 737 derivative and the 1st test aircraft will go to the Navy in 2009. Maybe I don't understand the meaning of 'patrol' but how long can a 737 stay up? Tom Jay Honeck wrote: More metal fatigue. Our military might as well be a chapter of the Antique Aircraft Association in Blakesburg, Iowa... ************************************************** ************************************************** ***** Washington, USA - "Structural fatigue" (WAPA) - The US Navy decided to ground 39 of its 161 P-3C Orion reconnaissance planes, because according to data resulting from examinations they show signs of "Structural fatigue on the lower section of the wing". The aircraft will now undergo maintenance interventions, which are expected to take from 18 to 24 months. The P-3C Orion is a maritime patrol aircraft, produced in its first model in the late 1950s by the Lockheed Martin Corporation, which played an important role in the Cold War and are presently employed among other in reconnaissance operations in the Iraq conflict. These four-engine turboprops are expected to be gradually replaced by Boeing's P-8A Poseidons, but the Navy counts to continue using the P-3s until 2019. Therefore careful and periodical maintenance activities will be needed. Another model of aircraft of the US armed forces to have recently showed signs of fatigue has been the F-15 jet fighter (see AVIONEWS). (Avionews) ************************************************** ************************************************** ***** How long can our guys be expected to hold the line with these ancient airplanes? -- Jay Honeck Iowa City, IA Pathfinder N56993 www.AlexisParkInn.com "Your Aviation Destination" |
#13
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Another Ancient Military Plane Grounded
"T. McQuinn" wrote:
Aviation Week had a recent article on this. They said the P8-A Poseidon is being developed as a replacement. I guess it's a 737 derivative and the 1st test aircraft will go to the Navy in 2009. Maybe I don't understand the meaning of 'patrol' but how long can a 737 stay up? Add extra fuel tanks and a long time. You don't need to carry luggage and 130 seats for passengers. Ron Lee |
#14
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Another Ancient Military Plane Grounded
Bob Moore wrote:
Our problems were all corrosion related. Flying at 100' in the salt spray most of the time did nasty things to aluminum airframes. At the major bases, we had huge "car washes" that we drove through after each low level mission. And that was probably not 100% effective. Ron Lee |
#15
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Another Ancient Military Plane Grounded
On Dec 18, 1:55 pm, Jay Honeck wrote:
More metal fatigue. Our military might as well be a chapter of the Antique Aircraft Association in Blakesburg, Iowa... ************************************************** *************************-****************************** Washington, USA - "Structural fatigue" (WAPA) - The US Navy decided to ground 39 of its 161 P-3C Orion reconnaissance planes, because according to data resulting from examinations they show signs of "Structural fatigue on the lower section of the wing". The aircraft will now undergo maintenance interventions, which are expected to take from 18 to 24 months. The P-3C Orion is a maritime patrol aircraft, produced in its first model in the late 1950s by the Lockheed Martin Corporation, which played an important role in the Cold War and are presently employed among other in reconnaissance operations in the Iraq conflict. These four-engine turboprops are expected to be gradually replaced by Boeing's P-8A Poseidons, but the Navy counts to continue using the P-3s until 2019. Therefore careful and periodical maintenance activities will be needed. Another model of aircraft of the US armed forces to have recently showed signs of fatigue has been the F-15 jet fighter (see AVIONEWS). (Avionews) ************************************************** *************************-****************************** How long can our guys be expected to hold the line with these ancient airplanes? -- Jay Honeck Iowa City, IA Pathfinder N56993www.AlexisParkInn.com "Your Aviation Destination" Jay, What? You are complaining about the military being frugal with your tax dollars? I suspect that the P-3 has had one of the best returns on initial investment of the various airplane programs out there... Dean |
#16
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Another Ancient Military Plane Grounded
ahhh the day that a P3 shows up at Blakesburg....
They frown on bonanzas... I can't imagine what the impression of a turboprop would be. At least the engine is round.... Mike Jay Honeck wrote: More metal fatigue. Our military might as well be a chapter of the Antique Aircraft Association in Blakesburg, Iowa... ************************************************** ************************************************** ***** Washington, USA - "Structural fatigue" (WAPA) - The US Navy decided to ground 39 of its 161 P-3C Orion reconnaissance planes, because according to data resulting from examinations they show signs of "Structural fatigue on the lower section of the wing". The aircraft will now undergo maintenance interventions, which are expected to take from 18 to 24 months. The P-3C Orion is a maritime patrol aircraft, produced in its first model in the late 1950s by the Lockheed Martin Corporation, which played an important role in the Cold War and are presently employed among other in reconnaissance operations in the Iraq conflict. These four-engine turboprops are expected to be gradually replaced by Boeing's P-8A Poseidons, but the Navy counts to continue using the P-3s until 2019. Therefore careful and periodical maintenance activities will be needed. Another model of aircraft of the US armed forces to have recently showed signs of fatigue has been the F-15 jet fighter (see AVIONEWS). (Avionews) ************************************************** ************************************************** ***** How long can our guys be expected to hold the line with these ancient airplanes? -- Jay Honeck Iowa City, IA Pathfinder N56993 www.AlexisParkInn.com "Your Aviation Destination" |
#17
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Another Ancient Military Plane Grounded
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#18
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Another Ancient Military Plane Grounded
What? You are complaining about the military being frugal with your
tax dollars? I suspect that the P-3 has had one of the best returns on initial investment of the various airplane programs out there... Agreed, it's been a good aircraft. But the time has come -- and gone -- to replace it. Military spending is one of the very few legitimate purposes for having a Federal government. I have no quarrel with spending tax money to keep our Air Force modern. As it is, the Air Force has been reduced to such a tiny size that there are legitimate arguments being made to roll it back into the Army. With so few planes and bases, there is little rationale for having an independent Air Force, with all the dead-weight bureacracy that comes with it. -- Jay Honeck Iowa City, IA Pathfinder N56993 www.AlexisParkInn.com "Your Aviation Destination" |
#19
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Another Ancient Military Plane Grounded
ahhh the day that a P3 shows up at Blakesburg....
They frown on bonanzas... I can't imagine what the impression of a turboprop would be. Hey, who would have ever thought that we'd see a B-25 Mitchell bomber at Blakesburg? Strange things happen, over time... -- Jay Honeck Iowa City, IA Pathfinder N56993 www.AlexisParkInn.com "Your Aviation Destination" |
#20
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Another Ancient Military Plane Grounded
"Jay Honeck" wrote in message ... What? You are complaining about the military being frugal with your tax dollars? I suspect that the P-3 has had one of the best returns on initial investment of the various airplane programs out there... Agreed, it's been a good aircraft. But the time has come -- and gone -- to replace it. Military spending is one of the very few legitimate purposes for having a Federal government. I have no quarrel with spending tax money to keep our Air Force modern. As it is, the Air Force has been reduced to such a tiny size that there are legitimate arguments being made to roll it back into the Army. With so few planes and bases, there is little rationale for having an independent Air Force, with all the dead-weight bureacracy that comes with it. Agreed, but the Air Force operates no P-3s. |
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