F-15 Separation Anxiety !

LordMorpheus

Diamond Member
Aug 14, 2002
6,871
1
0
Looks like pics from a flighsim.

Could be an "artist's rendition" of the whole fatigue limit thing that some older F-15s are starting to run into.
 

mwmorph

Diamond Member
Dec 27, 2004
8,877
1
81
Real situation, older F15A-D can have the forward part fall off because of structural deficiencies because of the longerons. Not sure if that pic is real, but it's happened before and this looks like a simulation or computer generated visualization of what happened.

http://www.globalsecurity.org/...aircraft/f-15-life.htm

On 02 November 2007 an F-15C mishap resulted in the loss of the aircraft. The Accident Investigation Board found defects which indicated potential structural damage in the rest of the fleet. A failure of the upper right longeron, a critical support structure in the F-15C Eagle, caused the crash of a Missouri Air National Guard F-15C, four miles south-southeast of Boss, Missouri. The initial findings of the Accident Investigation Board, while at the mishap site Nov. 27, indicate the fleet of F-15s A-D might not be airworthy after a metallurgical analysis of the mishap aircraft. The findings focus specifically on the upper longerons, major structural components of the aircraft, which are located near the canopy of the aircraft and run along the side of the aircraft lengthwise.

The discovery of more structural damage in the F-15s prompted a 03 December 2007 stand-down order from Air Combat Command Commander Gen. John Corley. The stand-down does not impact the operational status of the F-15 E Strike Eagle. Maintainers performed methodical and time-intensive inspections on all F-15 Eagle A, B, C and D model aircraft, which revealed more cracks in the aircraft longerons. Maintainers at Langley initially found no cracks or evidence of fatigue in F-15 longerons; however, throughout the Air Force, maintainers had found cracks in the upper longerons of eight F-15s (as of 10 December 2007). Four of these aircraft were assigned to the Air National Guard's 173rd Fighter Wing, Kingsley Field, Ore.; two were assigned to the 18th Wing, Kadena Air Base, Japan; another was assigned to the 325th Fighter Wing, Tyndall AFB, Fla.; and one assigned to the ANG 131st Fighter Wing, St. Louis, Mo.

Every aircraft underwent all previously published time compliance technical order inspections. However, the cleared aircraft did not immediately return to flight. Technical experts at Warner Robins Air Logistics Center, Ga., developed new inspection techniques based on findings in parts of the mishap aircraft. These inspections were performed as soon as the new TCTO [time compliance technical order] was available for the affected F-15s. As part of the previous TCTO, maintenance crews around the Air Force stripped paint and performed non-destructive inspections in the F-15's upper longeron just aft of the canopies. Inspections are more than just a visual check. After the paint is stripped and bare metal is exposed, Airmen from the non-destructive inspection shop apply chemicals that reveal cracks under a black light. Other inspections in hard-to-see areas are done with a borescope - a tool that uses a tiny camera and fits in tight areas.

According to the Air Combat Command Accident Investigation Board report [released 10 January 2008], a technical analysis of the recovered F-15C wreckage determined that the longeron didn't meet blueprint specifications. This defect led to a series of fatigue cracks in the right upper longeron. These cracks expanded under life cycle stress, causing the longeron to fail, which initiated a catastrophic failure of the remaining support structures and led to the aircraft breaking apart in flight. The one longeron, already not up to design specifications, cracked apart under the stress of a 7G turn, the colonel said. This led to the other longerons failing as well, which then caused the cockpit to separate from the rest of the fuselage. The pilot was able to eject, but suffered a broken arm when the canopy snapped off.
 

WildHorse

Diamond Member
Jun 29, 2003
5,006
0
0
Originally posted by: LordMorpheus

< cut >
Could be an "artist's rendition" of the whole fatigue limit thing that some older F-15s are starting to run into.

REAL!

Los Angeles Times: "F-15 fleet grounded after a jet falls apart"

The pictures were emailed to me by a friend, who was forwarding from someone else. The email claims:

"U.S. Air Force's announcement on Thursday said that a Missouri National Guard F-15 jet broke apart in midair on Nov. 2, 2007;
the pilot evacuated the plane safely. The breakup in mid air was blamed on parts that didn't meet specifications . . ."

You'll see lots of corroborating urls, if you google the phrase:
"Missouri National Guard F-15 jet broke apart in midair on Nov. 2, 2007"


It's healthy to exercise scepticism. Keep doing that!
 

EagleKeeper

Discussion Club Moderator<br>Elite Member
Staff member
Oct 30, 2000
42,589
5
0
Pure photoshop

1) Skin of the airframe is not proper
2) Break is to clean
 

0roo0roo

No Lifer
Sep 21, 2002
64,795
84
91
yea not exactly new news, the f15s are all grounded cuz of this.

and no fsaa ftl:p
 

oogabooga

Diamond Member
Jan 14, 2003
7,806
3
81
Originally posted by: EagleKeeper
Pure photoshop

1) Skin of the airframe is not proper
2) Break is to clean

I was hoping EagleKeeper would have replied and there he is :thumbsup:
 

olds

Elite Member
Mar 3, 2000
50,124
779
126
Originally posted by: oogabooga
Originally posted by: EagleKeeper
Pure photoshop

1) Skin of the airframe is not proper
2) Break is to clean

I was hoping EagleKeeper would have replied and there he is :thumbsup:

Some genius must have sent him a link to the thread.
 

jandrews

Golden Member
Aug 3, 2007
1,313
0
0
yeah that looked really fake lmao, I cant believe some people thought they were real pictures! Anyway, yes seems as the event is real and this is just visual aid made up by some jackhole.