Originally Posted by
ursine1
The fact that the seat tracks haven't moved is actually the problem. Take a look at the linked the article. Under seat storage room for the aisle seat is significantly reduced in the new Heart when compared to the Evolve interior. Ostensibly, this is at the benefit of the middle seat storage room, or possibly the window, but that remains unclear.
I just rode on an 800 that had new B/E Aerospace seats with a pet carrier. The carrier which previously fit under most seats on a WN airplane, will now only fit under window seats with new seating.
The aisle seats have a stanchion severely reducing lateral underseat space. Middle seats have flotation equipment under the seat cushion limiting vertical space. Only the window underseat space was sufficient for a size compliant pet carrier. That would eliminate about 112 previously available seat selections.