J-20... The New Generation Fighter II

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Blitzo

Blitzo

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Asymptote said:
Not quite, but with moving LERX / Chines. (basically blending the canard into the wing-root and fuselage)
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I'd remove the ventral fins and stape the LERX a bit -- they're too round for my taste at the moment.
I think the canards are there for a reason, and while Levcons can take some of the canards roles, as a poster whose name i forget, once said -- TVC can't take the place of control surfaces, just like how moving LERX can't take the place of canards.
I suspect without canards much of the J-20s manouverability will go with it. A clean delta, or if it had LERX would be more of a FB-22, which the current J-20 seems to be rather close to at the moment anyway.
 
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delft

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Bltizo said:
I'd remove the ventral fins and stape the LERX a bit -- they're too round for my taste at the moment.
I think the canards are there for a reason, and while Levcons can take some of the canards roles, as a poster whose name i forget, once said -- TVC can't take the place of control surfaces, just like how moving LERX can't take the place of canards.
I suspect without canards much of the J-20s manouverability will go with it. A clean delta, or if it had LERX would be more of a FB-22, which the current J-20 seems to be rather close to at the moment anyway.
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You want to know to what specification the aircraft is designed. If maneuverability is desired you get vertical and horizontal tail surfaces or a very much improved TVC with the attendant maintenance. How well is the center of gravity constrained (fuel tanks, ordnance).
 
Quickie

Quickie

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Decisions have already been made on the use of canards, lerx and their actual shape and position in the design of J-20. Any more minor changes to them would mean wrong calculations and decisions. As far as I know, the production J-10 design have no changes from that of the first J-10 prototype, which augurs well to the J10 designer's ability. Similarly, no further changes to the J-20 design would actually imply accomplished design goals. This is other than a further improved J-20 variant down the timeline with major design changes to the nozzles and, maybe, other parts of the aircraft.
 
siegecrossbow

siegecrossbow

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Quickie said:
Decisions have already been made on the use of canards, lerx and their actual shape and position in the design of J-20. Any more minor changes to them would mean wrong calculations and decisions. As far as I know, the production J-10 design have no changes from that of the first J-10 prototype, which augurs well to the J10 designer's ability. Similarly, no further changes to the J-20 design would actually imply accomplished design goals. This is other than a further improved J-20 variant down the timeline with major design changes to the nozzles and, maybe, other parts of the aircraft.
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I definitely see the inclusion of TVC nozzles. They will also work on reducing the weight of the plane at some stage.
 
Quickie

Quickie

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siegecrossbow said:
I definitely see the inclusion of TVC nozzles. They will also work on reducing the weight of the plane at some stage.
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I agree, as these upgrades are quite straghtforward. I wonder whether they've already designed ahead to be able to retrofit heavier TVC nozzles later on.
 
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