N744ST —

Totally awesome shot !!! A++

Brilliant work! Thanks

That is a fire tanker and those are water outlets right?

Very interesting shot.

Now, open up all your little compartments.

Paul Barrett, yes it is a fire bomber.
What you're looking at are the main gear doors closing, notice the nose gear doors are open too.
The dump outlets for the water or retardant is just slightly aft of the white/red color line. Look closely and you can see the stain from the retardant.

Very cool lesson on the operation of control surfaces!