鄉民跟他也沒有兩樣啊

先看看這段話：
'Structural and avionics/armament upgrades to keep the aircrafts operation were taken into consideration in 1990 and an initial request for information was sent to 10 companies, including Bristol Aerospace, Grumman, Israel Aircraft industries, Singapore Aeroapace and Smiths Industries but all decisions were postponed and later cancelled, pending another request for Lockheed-Martin F-16s. Just limited structural modification/upgrades were performed in the mid-90s to keep the aircrafts operational.'
http://home.eblcom.ch/f5enthusiast/...es/ChinaAF.html

結構的部分有的文件叫SLEP (Structural Life Extension Program)，也可參考http://www.as.northropgrumman.com/p...iger/index.html

另外您有興趣可以請G大神查查'Bonded Honeycomb parts de-bonding moisture intrusion'後，
再想想有多少飛機組件是Bonded Honeycomb parts。(您能放心嗎？)

再就近看看新加坡對F-5 SLEP/upgrade的態度，再想想國內對F-5的處理。

最後
'Unfortunately reliability of the Northrop Tiger has diminished: seventeen single-/double-seaters have crashed between 1988 and 2007, killing 19 officers and leaving 4 pilots missing
There has been a high number of Northrop F-5F losses; in 32 years of active service as of July 2009, 40 have crashed killing 32 pilots, five accidents were between 2005 and 2009. Only 33 remain in service.'

美國海軍與陸戰隊從瑞士購進一批32架F-5E，這批F-5E在進行翻修與結構更新之後更改型號為F-5N並配備給駐內華達州法隆海軍航空站的海軍VFC-13與陸戰隊VMFT-401

AT-38,還有同樣是海島國家的新加坡F5T目前還在服役中...

1998.12.03 台東基地 F-5F 5394 兩飛官殉職 鳥擊失速
2001.10.05 台東外海 F-5F 5356 兩飛官失蹤 空間迷向
2003.10.12 新竹外海 RF-5E 5502 一飛官獲救 疑似發動機故障
2006.06.17 嘉義太保 F-5F 5381 一飛官殉職一獲救 疑似鳥擊
2007.05.11 新竹湖口 F-5F 5371 兩飛官殉職 疑似鳥擊
2009.07.15 澎湖石礁靶場 F-5F 5410 兩飛官殉職
2011.09.13 花蓮蘇花公路116公里處 F-5F 5401 兩飛官殉職 與編號5506的RF-5E執行夜間任務時偏離航道撞山
RF-5E 5506 一飛官殉職 與編號5401的F-5F執行夜間任務時偏離航道撞山

不是3隻鴨子嗎

您已點中若干要點。
如果您有長期在注意空軍對部訓機的規劃企圖，
您認為空軍會花大筆的$$而造單全收SLEP與其他'特殊'的問題嗎？
(換成您，在$$有限的情況下，您會怎麼處理？)

請您再看看我之前PO的文章內容，我沒說國內的F-5目前不能服役。