I'm making a Kiel Tube pitot source to be built into the fairing on the nose of a gyroplane. So far I've got a 32mm ID X 75mm grp tube sealed flush on the inside end and open to the free stream on the other. My question is what is the best way to position the (6mm OD X 4mm ID copper tube) ASI pickup within the tube? Some sources show it about at about the geometric center of the tube pointing forward while others have it centered, at the forward lip.
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