pitot boom

[Kenny]

I purchased a Dynon pitot boom and built a reciever into the leading edge of the wing on my experimental Champ. The boom is greater than 12" long. I would like to shorten it. Any advice on this? How far does it need to extend to be effective?

 

[dynonsupport]

The farther out the better, usually. It all depends on the airflow around the airfoil, though, and so we don't have a lower limit on how far in will work.

We don't really recommend chopping the pitot - it isn't really designed to be easily modified (though people have hacked away at it successfully. I think there are some discussions on this forum if you search a bit).

 

[Kenny]

Thanks. I appreciate your insight. Interesting choice of terms: chopping and hacked away at it. I'd have prefered "amputate" but I got your aversion to shortening the boom.