Raptor 50 fits fine in the Funkey fuse, the pitch arm does not touch, the Titan will only fit if you use the shorter tail boom of a standard raptor 50 and the 600mm blades.

Saying that I am changing mine over to a Trex 600n.

Check out LHC website http://www.lhc-rc.com/acatalog/Airwolf_fuselages.html