Josh,

It is nearly the exact same size...

Main rotor diameter;

Belt CP- 27 inches
Blade 400- 28 inches

Overall length;

Belt CP- 26 inches
Blade 400- 25.6 inches


So, the B400 and Belt CP are very, very close in size, not enough to notice a difference..

But the radio you get with the B400 package is just so far superior to the one with the Belt, and the Eflite parts availability is just so much better too...

So, something to think about...especially considering the price on this site...certainly no pressure, just showing you some more options...

Glenn