Recent content by laser911

Actually, a MIG21/J7 and a J8 have been modified for stealth tech testing in 1980s. I guess you can say nobody can make better aircraft than US as the first plane was made by US.

It is true that one of the plants was on fire. But I didnt ask the details, it seems the fire was put out quickly.

As OBLiTeRate said, it is commonly used when changing the brake rotator on car. But yes normally it is something very tight. And I think it is called IMPACT screw driver.

If you think about how the radar work, you will have a better idea about this RCS problem. The radar requires a certain accumulation of signal (in terms of strength or time) to recognise something as a target. The idea of stealth is reducing the RCS to noise level so that the radar will ignore...

canard rotate 180 degrees?! that makes no sense at all! It is no possible to rotate 180 in normal airspeed range not to mention the structural problem of doing so.

The ball joint thing doesnt make sense at all...it is just the angle of canard mount/shaft and the angle of view make it looks different. it will need a gap or slop (like F14) to allow canard change swept.

Very good one. Thanks. So the Y axis is Cm, X axis is AoA (down to -30/40 degree??), the top curve is max nose up control surface limit and the bottom curve is max nose down control surface limit?

Dont think J20 is close coupled design. It is developed from J10 and similar to J10, which is a mid coupled (somewhere between close coupled Rafale and far/weak coupled eurofighter). JAS39 is mid coupled too. Perhaps we can say J20 is somewhere between mid coupled and weak coupled. As the vortex...

The LCAC is a different story, the number is limited by their engines. These engines need to be light weight and powerful which is very similar to adv jet engines. This is one of the weak points of China but nothing to do with CV. The 003 will unlikely be a nuclear powered but it will have EMALS.

You are talking about design a new aircraft mate. More range=carry more fuel=heavier=need more power=new engine or 2 engines=even heavier....you might get J20 in the tho

Don't think it will be the solid boom, completely wrong position.

it is too close to the inlet. The engine might stall if it sucks the smoke.

Indeed. I also found the leading edge flaps of J10 move downward a bit most of the time, but this one upward a bit when in air. It seems the FCS is far more complicated than I thought.

For the last image, all 4 engines look the same to me. Maybe the dark one is WS18.

Thanks a lot. One more question from me. The aerodynamic center, known as the point where the moment is not affected by lift, but for canard planes like J10, the lift and pressure distribution varies a lot. How the aerodynamic center not moving backward/forward when canards are moving?