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Old 03-05-2019, 07:52 PM
DaveLS DaveLS is offline
Join Date: Oct 2007
Location: Pensacola, FL & 2R4
Posts: 206
Default Aft pitot line length

How long is the aft pitot tube supposed to be:

1) overall

2) firewall forward

3) baggage bulkhead aft to adhars

Thanks for the help, currently working on Section 31B.


Last edited by DaveLS : 03-07-2019 at 07:44 PM. Reason: Spelling
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Old 03-07-2019, 07:43 PM
DaveLS DaveLS is offline
Join Date: Oct 2007
Location: Pensacola, FL & 2R4
Posts: 206

Found some answeres:

1) Per Section 45A-05 Step 5, the pitot tube from the instrument bay to spinner (FF 1216) is 54.5 inches.

2) By my measurements and going by Section 42D-13, the aft pitot tube section of from the baggage bulkhead to the adhars needs to be a minimum of 71 inches.

3) The FF 1216 engine bay pitot tube needs to be heat resistant, so I will add that when doing the firewall forward Section 45A.

I am currently working on Section 31B and am trying to figure out the placement of the pitot tube. With the above information, i think I am good to go.

As an aside earlier fuselage kits (mine) had the wiring harness had 5/8 snap busings in F-1206A and F-1207B bulkheads. New kits use 3/4 diameter snap bushing. The wiring harness, adsb coax, aft pito tube, and angle of attack tube will not fit through the 5/8 snap bushings, but will tightly fit through the 3/4 snap bushing.

Regards, Dave

Last edited by DaveLS : 03-07-2019 at 07:46 PM.
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