I'm ashamed to admit that I have no idea what you're talking about, being a fan of Tolkien's works.

But alright. Still works out fine- I imagine since Mechs are upright they'd push a little closer to 5 than 3, at least on larger variants. Works just fine for me. That's a good 16.5' tall. Reasonable size for something you could climb up into and stomp around in, quite mobile.