Tri rotor finally reached the test stand. Got a thrust gimbal which we can live with. It's based on the 1 rcgroups post which documented a thrust gimbal sufficiently to replicate it. http://www.yb2normal.com/tricopter.html

We're getting 200Hz PWM out of the thrust vector servo, one of the Futaba S3102's. In fact neither the Hitec HS81MG nor Futaba S3102 work at 50Hz when using the thrust vector header. U may not know what's happening, but it's real stable.

Now for the first time ever it's close up, focused, stable, & fully lit views of a thrust vectoring trirotor test.

First tri rotor tests (2 min 43 sec)

I wish I knew more about these, they look so cool. how hard are these to fly?

The same as a large helicopter.