FORANE
Well Known Member
I currently have an old Altrak altitude hold in the Lancair. When I initially installed it, I connected it to the static port. After experiencing a frozen static line one time I removed the Altrak's connection to the static port. I figured it was just an altitude hold and didn't matter what altitude that might be; removing the static port increased its safety because if I were in IMC and the static line froze again, at least the altitude hold would keep me level.
I am currently installing a Trio pro pilot in the RV-9A I recently purchased. I am debating if I want to connect it to the static port. My 9A has bilateral static ports which I am told are vans supplied.
On the ground the static line pressure should be the same as inside the cabin. In flight I seem to recall there is a decrease in cabin pressure due to the venturi effect. As such, the pro pilot would level off lower than actual altitude selected due to the error.
Does anyone know how much the error may be?
Has anyone experienced frozen static line in their RV?
I am currently installing a Trio pro pilot in the RV-9A I recently purchased. I am debating if I want to connect it to the static port. My 9A has bilateral static ports which I am told are vans supplied.
On the ground the static line pressure should be the same as inside the cabin. In flight I seem to recall there is a decrease in cabin pressure due to the venturi effect. As such, the pro pilot would level off lower than actual altitude selected due to the error.
Does anyone know how much the error may be?
Has anyone experienced frozen static line in their RV?