Wednesday, September 4, 2024

Pitot, Pitch Servo

I spent most of the day with a chainsaw, so didn't get a lot done on the plane.  I got my new tap (after breaking the other one), so drilled and tapped holes to attach the pitot to the mast.  The countersunk screws don't fit perfectly because of the curve of the mast, but a quick hit on the scotchbrite wheel rounded the heads just enough to make them fit the mast.  The pitot will have to come off while I fit the mast to the skin, so I'm sure I'll have to revisit the screws again before painting.


I don't have the autopilot servos themselves yet, but I do have the mounting hardware.  The pitch servo has an pushrod that gets attached to the elevator bellcrank.  I marked out the location for the pushrod and drilled through the bellcrank.


For now, I just bolted the forward end of the pushrod to the bellcrank.  The aft bearing will attach to the servo arm down the road.