M20F Posted March 1, 2016 Report Share Posted March 1, 2016 I have Whelen A650 strobe/nav lights which appear to be replaced directly with Whelen 71110, anyone done this and is it just as simple as unscrewing the old one off and screwing the new one on? Appears to be from reading. What I can't figure out is what I have for a position light in the tail (67 M20F). It looks like Whelen 71554 replaces it but not positive and unsure what the difference is between horizontal and vertical mounting. It has Cessna for the vertical so assuming I need a horizontal? Appreciate input! Quote Link to comment Share on other sites More sharing options...
cnoe Posted March 2, 2016 Report Share Posted March 2, 2016 Should be vertical. It refers to the orientation of the two mounting screws. I did this (tail position light) recently. Sent from my iPad using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
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