When I got my RV-4 project the static ports were already installed. I assumed with Van's supplied pull rivets. Rivet head outside diameter 3/8". Does that sound like Van's supplied rivets?
Drawing calls for 18" forward of horz stab leading edge and centered on fuselage. Mine are 21" and only 4" above side skin edge.
Reason I'm asking is that I noticed that altitude jumps 20' with engine running. (Yes, I do tap on the altimeter when setting altitude before starting engine.)
I'm not a fan of doing low passes or I would have done that to see if change of airspeed changes altitude readings.
I've read about building a dam before the rivet opening or filing the rivet flat, but am wondering if that's something that will only work with Van's recommended location.
Finn
Drawing calls for 18" forward of horz stab leading edge and centered on fuselage. Mine are 21" and only 4" above side skin edge.
Reason I'm asking is that I noticed that altitude jumps 20' with engine running. (Yes, I do tap on the altimeter when setting altitude before starting engine.)
I'm not a fan of doing low passes or I would have done that to see if change of airspeed changes altitude readings.
I've read about building a dam before the rivet opening or filing the rivet flat, but am wondering if that's something that will only work with Van's recommended location.
Finn