|Posted: Tue Nov 21, 2006 5:44 pm Post subject: Heated Pitot Tube Selection & Angle of Attack Probe (thanks
Thanks Larry & Rob!
do not archive
Larry Rosen wrote:
From the Gretz Instructions (thanks to those that sent them to me):
To plumb the tubing to the airspeed indicator to the pitot tube, the
builder can use either the plastic type of instrument tube or aluminum
tube. If the aluminum tube is used, not the "additional parts needed"
list at the top of this sheet. The builder will need to flair both
the tube from the pitot and the tube coming from the panel. Connect
these together by using the parts listed.
Additional parts needed from another source (for attaching pitot tube
to aluminum line
1 each AN 815-4D union for flared tubes
2 each AN 818-4D nut
2 each AN 819-4D sleeve
As you would expect builders are using both aluminum tube (as per the
plans) and plastic tubing.
Rob Wright wrote:
> It's in the instructions, not sure if they're available on Gretz's site.
> You can use either aluminum or "plastic" tubing, a la SafeAir.
> say that if you use the plastic-type tubing to use a short run of metal
> tubing before changing to the plastic. I used the 6" metal run built
> the Gretz pitot before I connected the plastic tubing.
> Rob Wright
> Fuse - soundproofing
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