J-20 opening it's weapon bays.

[no_name]

Buddy, what kind of post is that? These doors are operated with hydralic power, and hence I don't think at flight they are going to open fast. The resistance of air at high velocity is so enormous that if a change in the structural surface at faster rate will jeopardize the flight control and so the doors will be operated at the same spped in flight.
Being a stealth plane with BVR why sould there be a fast door movement?
After all if its going to be a dog fight the external weapons will also be designed to reduce the maximum RADAR signature

Hydraulic servos don't have to be slow - Check out videos showing J-20 moving her other flight control surfaces on ground.

Side weapon bay does not host BVR but short range missiles.

Stealth would be compromised when weapon bay is opened.

The J-20 being an inherently unstable design, your concern over its instability by having an open bay door may be overrated.
One can also argue that the plane would be less affected if it can open, release and close it's weapon bay door quickly.

 

[PERSIAN GOD KING]

The j-20 looks very nice.

 

[mil-avia]

Missile bays of J-20 aircraft :

1023 × 723 pixels


Related link 1 and link 2.

 

[LandShark]

i dare any india to post anything about LCA here.