Noise in rear tire area(wheel bearing?)

I posted a question on the wheel/tire forum of what I thought to be a "tire" noise.After switching tires from right to left and front to rear the noise is still in the same place.It is coming from the right-rear wheel area.It sounds exactly like a winter tire tread on dry pavement.When accelerating from a stop it sound like a small propeller airplane winding up for take-off.What I thought to be tire is NOT! Could it be a wheel bearing?After many miles of listening we determined it is isolated to one side.The right.When going around a right hand turn like an exit ramp the weight is off that side and it is quiet.This is characteristic of wheel bearings.But I need professional input before I tear into this job and find out it isn't the problem.There are so many experienced guy's here I know I'll find the cure.This is the first "rear-wheel" drive car I've owned.I know for SURE what a wheel bearing goin' bad sounds like on a front wh. drive.Are the sounds differnt?
Thanks for the help in advance.