Iran manufactures F-14 engine parts, page 3
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reply posted on 20-5-2005 @ 07:02 PM by Seekerof
[i[as posted by Sep
And about the airframes, the US Navy is still operating the aricrafts, correct? If the airframes can last on the sea, on the humid conditions on the carriers, and still fly today, what makes you think that the Iranian frames are worst off?

Yep to your first question.
As to your second question:
Sep, the US Navy maintains the F-14s far better and with better equipment, better quality parts available, etc. than the Iranians can ever imagine having.

And even with that established factoid, the US Navy had a very difficult time keeping and maintaining those F-14s. You seem to think the Iranians can do better? Example of a continued US Navy F-14 problem: Have the Iranians overcome the TF-30 problems that plagued the US Navy F-14s. Bear in mind, the US Navy had the means and the parts to deal with the problem of the TF-30s. The Iranians are doing or have done what to overcome this? Mr. Cooper or Mr. Bishop mention this? A little research on your part would verify how difficult and troublesome the US Navy had maintaining their F-14s, and Sep, that was with far better equipment, training, and having access to parts. Hell yes, I know that the US Navy can do far better than their Iranian counterparts when it comes to or is applied to maintaining the life of the F-14s airframes. No doubt in my mind.


as posted by Sep
"The US has estimated the number of operational Iranian F-14s at any given time at 15 to 20, and sometimes less than 10, due to the cannibalization of other planes to keep a few flying"

"Some 50 to 55 are believed to remain in service, but only about 30 of these are considered airworthy at any one time."

Sep, this is a factoid that some seem to miss and/or not comprehend. One is a lowball number and the other is a moderate number. Taking into account the law of averages and my own field experiences, those numbers are realistic and viable. I served on a base that had 30 "Buffs" [B-52s]. Out of those 30 "Buffs" only 23-25 mission-ready. The others were either being used for parts while awaiting replacement parts, or being worked on and signed off as not available for service. I was on another AFB that had over 100 F-15s. Out of those 100, only 70-75 were mission-ready at any given time, Sep. The examples can go on here. So for the above mentioned claim that out of 50-55 Iranian F-14s, only about 30, or 20-25, or 15-20 are considered mission-ready seems very viable and realistic. Personally, if Iran has 50-55 "in service," I would wager that at any given time, there are only maybe a third that are mission-ready or available for active combat at any given time. Again, very realistic.




seekerof

[edit on 20-5-2005 by Seekerof]


reply posted on 20-5-2005 @ 08:46 PM by Sep
About the TF.30-PW-414 Mr Cooper said

"it is unknown if they have further upgraded their TF.30-PW-414s. However, it is certain that they not only "have parts", but are also producing new spares and conducting the full refurbishment of their engines at least since 1985."

About the airframes:

"I'm not sure about this, simply because of the fact that USN F-14s are used extremely intensively - flying up to three sorties a day - during cruises, which last six months on average, and then nowhere near as much for the next 12 months, or, in some cases - due to the shortrage of airframes - will return from a cruise, be refurbished and rushed into another unit for a new cruise. On the contrary, Iranian examples are rotated between active service, refurbishment, and being held as reserve (in which case they are maintained in flying condition, but stored, and flown only four hours a year), and only very seldom experience such intensive flying like USN examples (add to this the stress of the carrier operations, which has a distinct impact on the airframe as well).



So, I'd say it's likely that the surviving USN's F-14As built in the mid-1970s should have more flying hours than contemporary Iranian F-14s. However, the fact is also that there are more F-14s built in the mid-1970s remaining operational in Iran than in the USA; the USN is well underway retiring its last F-14As now (I think that only one squadron remains operational with them), and the attrition rate in the USN was always much higher than in Iran. So, the number of high-hour airframes is comparatively lower."


reply posted on 23-5-2005 @ 01:11 PM by aerospaceweb
Originally posted by Sep
One more thing just finished reading one of the articles you posted and it seems to be contridicting itself. Tell me what you think of it.

"The US has estimated the number of operational Iranian F-14s at any given time at 15 to 20, and sometimes less than 10, due to the cannibalization of other planes to keep a few flying"

Whille at the bottom of the article it say's:

"Some 50 to 55 are believed to remain in service, but only about 30 of these are considered airworthy at any one time. "

Tell me which one you think is right.


Just to clarify, the way I read the source that information originally came from is that Iran was able to keep 15 to 20 F-14s airworthy during the war with Iraq. After the war, Iran was able to increase its fleet to about 30 in service.

This seems reasonable since wartime puts much greater stress on a military's resources--aircraft fly more often and need more repair. The air force would have been forced to focus its maintenance personnel on keeping the planes in the best condition operational. In peacetime, the pace of operations is reduced freeing up manpower and supplies to support a larger number of aircraft.

In any case, I agree that Iran's usage of the F-14 is a difficult subject to tackle. There is a great deal of contradictory information out there, and it is difficult to wade through it all to find the truth. In the article our site published, we made the decision to stick with the information that most sources seemed to agree upon, including Aviation Week, Jane's, Flight International, and Joe Baugher's site. Hopefully, we can learn more one day when Iran becomes a more open nation.
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