I've never measured it but mine is supposed be 35 foot. It has 10 windows, with an emergency door on both sides. When I got it he had a 29 foot Bluebird FE sitting next to it. In addition to the FE, it had a wheelchair lift, which was also on my don't want list because I just didn't want to mess with one.
But looking at the 29 footer made me think that would be big enough for what I wanted to do, so I asked him if he ever came across any 29 foot Bluebird REs. As I remember that part of a fairly long conversation he basically said not often, and in his experience almost all 29 footers came with wheelchair lifts.
So I went with the 35 footer. And I am still glad I did.