LRI Probe

LRI Probe. Sudo angle of attack indicator for an airplane. These things have gotten ridiculously expensive. Ports are sized for 1/16 NPT but must be tapped. Use 1/16 NPT to 3/16 nylon hose barbs and some Teflon tape to seal the threads. For a display use a 2 1/4" low speed 0-80 mph Falcon airspeed indicator. To calibrate it use a U shaped plastic tube as a manometer to find the indication in inches of water column. Put water in the bottom of the "U" and attach tube the to "Pitot" input.