軍武

听说RD-93发动机很麻烦?

https://www.news18.com/news/world/jf-17-jet-fighters-jointly-developed-by-pakistan-and-china-fails-to-fulfil-promises-report-6646771.html

JF-17 Jet Fighters, Jointly Developed by Pakistan and China, Fails to Fulfil Promises: Report

2022/12/19

The problem with the Russian RD-93 engines continues despite efforts undertaken by the Chinese Nanjing Research Institute of Electronics Technology to fix the issue.

Pakistan is facing problems because Pakistan wants to directly deal with Russia regarding the repair and replacement of the Russian RD-93 engines but the deal signed between Beijing and Islamabad during the agreement says that Pakistan can only obtain engines and spare parts from Russia only through the mediation of China.

Russia wants to help out Pakistan by sending spare parts and repair tools for the RD-93 engines but international sanctions against Russia’s defence export agency, the Rosoboronexport, have hindered progress.

>>1193793
現在鵝爹還能供應RD-93?

>>1193793
>>听说RD-93发动机很麻烦?

>>1193825
>>現在鵝爹還能供應RD-93?

聽說JF-17可以裝中國國產的WS-13。WS-13的加強版WS-21聽說今年也通過測試。所以理論上新建的JF-17不需要再依賴RD-93了。裝自產引擎即可。

与此同时，在美国，F-22发动机改装。

https://breakingdefense.com/2023/07/turbine-fatigue-issue-forced-f-22-engine-retrofit-air-force-says/

Turbine 'fatigue' issue forced F-22 engine retrofit, Air Force says

2023/07/13

WASHINGTON - The Air Force and engine builder Pratt & Whitney have completed a $21 million, fleet-wide retrofit effort for the F-22 Raptor's dual F119 engines, after identifying what the Air Force told Breaking Defense was a fatigue issue with turbine blades that led to seven class A mishaps, nearly $23 million in damages but no operational interruption.