Chinese Hypersonic Developments (HGVs/HCMs)

JayBird

JayBird

Junior Member
A picture from CJDBY forum, supposedly could be the hypersonic aircraft the other day? It does looks like there are some kind of burn marks from high atmospheric hypersonic flying on the skin of this thing. It's this the tail or the head? The large gap is suppose to to be function as high altitude thermal expansion. Maybe you guys can figure it out.... The last pic is SR-71 just for comparing the gap.

022611lzkds9zbsx9pfskf.jpg 022540qsy7ya67q9b9aaz6_jpg_thumb.jpg 171610aawe7ereueukbxkz_jpg_thumb.jpg
 
Deino

Deino

Lieutenant General
Staff member
Super Moderator
Registered Member
But what part of this alleged "hypersonic vehicle" should this be ??

IMO it looks much too heavy rivetted and the fuselage looks rather rugged to ever reach this speed ...

Anyway, here's another image of this strange "thing".

Deino


Strange.jpg
 
JayBird

JayBird

Junior Member
Deino said:
But what part of this alleged "hypersonic vehicle" should this be ??

IMO it looks much too heavy rivetted and the fuselage looks rather rugged to ever reach this speed ...

Anyway, here's another image of this strange "thing".

Deino


View attachment 19009
Click to expand...

The last pic looks almost like leather shoe or leather bag. :p But the guy who posted this on weibo did have a history of posting some interesting information before if I remember correctly. I seem to remember his name from some other pics before.
 
L

latenlazy

Brigadier
Deino said:
But what part of this alleged "hypersonic vehicle" should this be ??

IMO it looks much too heavy rivetted and the fuselage looks rather rugged to ever reach this speed ...

Anyway, here's another image of this strange "thing".

Deino


View attachment 19009
Click to expand...
Riveting doesn't suggest it couldn't be high supersonic or hypersonic. This is the SR-71's skin close up.

SR-71A20_zps108f5e49.jpg

sr-71a-blackbird-pokrycie.jpg


Parts of the Sr-71's skin was corrugated and not smooth because at higher speeds the metal skin expands. The skin probably *has* to be metal, unless they've managed to invent some kind of heat resistant composite that can stand both the mechanical and thermal stress at hypersonic speeds..
 
Quickie

Quickie

Colonel
Still...there aren't any gaps in those pictures of SR-71.

Those gaps in the picture would face a lot of air resistance, unless the gaps faces the back in which case it could be less of an issue.

Could the picture be of an earlier prototype, where the gaps are not that much of a concern in the beginning and are part of the experiment?
 
L

latenlazy

Brigadier
Quickie said:
Still...there aren't any gaps in those pictures of SR-71.

Those gaps in the picture would face a lot of air resistance, unless the gaps faces the back in which case it could be less of an issue.

Could the picture be of an earlier prototype, where the gaps are not that much of a concern in the beginning and are part of the experiment?
Click to expand...
The gaps are placed selectively I think. Where you see corrugation with no gaps in one area, the gaps are probably on the opposite side of that area. As you suggested, they could also strategically place gaps on the skin to minimize drag. That said, drag from those gaps probably aren't so great that they would impact reaching supersonic speeds, and by the time they might matter in terms of drag, they could already be filled.
 
JayBird

JayBird

Junior Member
Quickie said:
Still...there aren't any gaps in those pictures of SR-71.

Those gaps in the picture would face a lot of air resistance, unless the gaps faces the back in which case it could be less of an issue.

Could the picture be of an earlier prototype, where the gaps are not that much of a concern in the beginning and are part of the experiment?
Click to expand...

No... the guy who posted the pic claimed this aircraft just flown few days ago. That kind of correlating with the hypersonic flight test the other day.
 
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