H-20 bomber (with H-X, JH-XX)
- Thread starter Deino
- Start date
Quickie
Colonel
Apparently the DSI has a slightly better performance over the diverter inlet in the subsonic speed. Also, no one knows if the flying wing design would reach near supersonic speed?
In any case, the bump can also be considered a required part of the S-duct because of the short distance between the engine inlet and exhaust in the above posted flying wing design.
SinoSoldier
Colonel
Unfortunately, that statement doesn't add anything that we do not already know regarding H-XX.
Nothing new nor surprising, he also mentioned other possible targets before and after 9:30 mark. The message is that China must be able to counter-attack any location where an enemy can launch an attack on Chinese coast, no difference than a ICBM flying 10 000 km or a LACM + H-6 combo reaching 5500km. At least one other country on this planet can and is taunting to do it when it see fit.
What do surprise me and maybe others as well is that you seem to understand Chinese very well.
I come across this article
where the author says about B-2
My understanding tells me that DSI serves the boundary layer issue. As B-2 design has demonstrated, the issue is not limited to supersonic aircraft. So it is reasonable that a Chinese B-2 equivalent may choose to address this issue with a DSI type of inlet to address the same issue instead of B-2's approach of auxiliary inlet. Remember DSI was in early researching phase when B-2 came out. If Grumman had mature DSI back then, it may have opted DSI on B-2. That is what China is doing after DSI has become an ordinary technology to her.
As others have said the bump can serve as part of the S-duct, making the engine and inlet duct's axis in the same or closer plane, rather than in two planes far away as B-2 does (two vertical planes). This can make the aircraft's center fuselage more compact or thinner, which means smaller cross-section area, less drag, faster and longer range, or same range but smaller airframe therefor smaller RCS.
One thing I want to emphasize is that, don't automatically call any bump a DSI because DSI by its name is supersonic which is distracting to enjoy the bump's full potential. It would be more accurate to call it "bump inlet" which is exactly what Chinese call it "蚌式进气道" literally "mussel inlet".
where the author says about B-2
In this closeup view you can see an auxiliary inlet below and just in front of each of the engine inlets which removes the turbulent boundary layer air flow before it enters the engine. The removed air is then remixed with the exhaust gases to reduce the temperature signature from the engines and so decrease the stealth bomber's visibility to infra-red tracking equipment.
My understanding tells me that DSI serves the boundary layer issue. As B-2 design has demonstrated, the issue is not limited to supersonic aircraft. So it is reasonable that a Chinese B-2 equivalent may choose to address this issue with a DSI type of inlet to address the same issue instead of B-2's approach of auxiliary inlet. Remember DSI was in early researching phase when B-2 came out. If Grumman had mature DSI back then, it may have opted DSI on B-2. That is what China is doing after DSI has become an ordinary technology to her.
As others have said the bump can serve as part of the S-duct, making the engine and inlet duct's axis in the same or closer plane, rather than in two planes far away as B-2 does (two vertical planes). This can make the aircraft's center fuselage more compact or thinner, which means smaller cross-section area, less drag, faster and longer range, or same range but smaller airframe therefor smaller RCS.
One thing I want to emphasize is that, don't automatically call any bump a DSI because DSI by its name is supersonic which is distracting to enjoy the bump's full potential. It would be more accurate to call it "bump inlet" which is exactly what Chinese call it "蚌式进气道" literally "mussel inlet".
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manqiangrexue
Brigadier
If you're going to translate, you should probably at least translate the whole sentence. He says, "If they launch strikes at us from Guam, we need to be able to strike Guam; if they launch strikes at us from Hawaii, we need to be able to strike Hawaii."