I saw Tim Redleman do that with a pitot tube on the nose of a bandit, seemed to work quite well. I had mine stuck into another tube bonded into the nose, with a thin wipe of rtv, cause as Bill said you have to push it in to get it into the jetcase.

I had no problem with hanger rash, just make sure that whatever you do it cannot hit the ground on a gear collapse, this includes putting it out on the wingtip or something.

I have mine in the vertical fin, that works well. I would think that on a BobCat you could go in the front of the boom or in the vertical.

As for the electronics, I mount them close to the pitot probe and then run a normal servo extension back to the ECU.

Of course with the new GPS unit you don't have to do any of this. And with a wireless modem you can read the speed with the handheld unit while in the air!