Torbernite Posted March 12, 2023 Posted March 12, 2023 According to the memoir from Ge Wenyong, test pilot and instructor pilot of PLAAF, in early 1964 they tested the F-86F-30 brought by KMT surrender pilot, and found the hydraulic system worked at same pressure (3000 psi or 210 kgf/cm^2) with J-7 (the basic version, or in other words, MiG-21F-13), and the emergency hydraulic pump was same in appearance. While the hydraulic system of J-5 and J-6 or MiG-17/19 works at about 145 kgf/cm^2 and their hydraulic accessory was larger and heavier. Considering a relatively complete F-86 wreckage was captured in 1951, was its hydraulic design and equipment absorbed into MiG-21 design? Does anyone see my FF Su-27? It's about 22m in length and 15m in width. It should be here! I saw it just now! Anyone touched it? What? I'm dreaming?
foxbat155 Posted April 18, 2023 Posted April 18, 2023 Well, looks like Mr. Wenyong forgot many things as the really are. MiG-21 hydraulic system peak pressure without any flow is rated 215 kg/m2, normal working pressure is 180kg/m2 with typical 35l/min flow (when pump is new, flow at end of pump's service life is about 25l/min). Here photo of F-86 emergency pump: Here emergency NP-25T pump from MiG-21 family: They looks completely different. Conclusion: F-86 wasn't eated by MiG-21.
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