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No, everything about the aircraft is obsolete which is why no other country has attempted to develop anything similar. The J58's are really dated, though most o
by starpilot 7y ago
No, everything about the aircraft is obsolete which is why no other country has attempted to develop anything similar. The J58's are really dated, though most of the thrust is generated by the inlets when supersonic.
- ovi256 7y agoThat does not mean that this manual is not subject to ITAR restrictions.
- rwmj 7y ago> most of the thrust is generated by the inlets when supersonic I've often heard this (also about the bypass in Concorde's engines), but I've never heard a clear explanation about how some element of an engine which doesn't involve burning fuel can generate thrust. Can anyone explain it?
- saganus 7y agoIf I remember correctly, in the book Skunkworks they explain that it would increase the air pressure. The analogy made was that it was similar to putting a finger on a garden hose to partially block it, thus increasing the water pressure. Obviously there must be some complex physics going on but that was the gist of it. Probably someone with more knowledge can confirm or correct me :)
- russb 7y agoHere's a great answer on avation.stackexchange.com that answers that exact question: https://aviation.stackexchange.com/a/27024 https://aviation.stackexchange.com/a/27024
- ThenAsNow 7y agoSince the SR-71 is a perennial HN favorite: https://news.ycombinator.com/item?id=13567554 https://news.ycombinator.com/item?id=13567554 I think the StackExchange answer linked below covers interesting aspects of supersonic inlet behavior, but doesn't do a great job answering your specific question.