Today's Message Index:
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1. 07:13 AM - L-29 Pioto-Static (speedy11@aol.com)
2. 08:53 AM - Re: L-29 Pioto-Static (Jorgen Nielsen)
Message 1
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| Subject: | L-29 Pioto-Static |
Request Help from L-29 Experts
I'm having an issue with the airspeed and altimeter indications being slow to indicate
properly. For example, during acceleration and climb the indicators lag
behind the actual numbers. Then when established in a steady state situation,
the airspeed and altimeter indicate exactly correct - as checked with an accompanying
aircraft. The same lag occurs as the aircraft is slowing or descending.
A ground pitot-static check indicates perfect with no leaks.
Our research has found no blockage thus far of the lines from the booms to the
fuselage.
However, we found three lines attached to the left boom (right boom has two).
Two of them are connected to the pitot and static lines. We are not sure where
the third line goes.
The maintenance diagrams show only two lines to the left boom.
Does anyone have three lines to their left pitot-static boom? Does anyone know
what the third line if for?
Thanks,
Stan Sutterfield
NX4477N
Message 2
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| Subject: | L-29 Pioto-Static |
Hi Stan
Not sure on three lines to left side.
However, just a question to help narrow down the fault: Have you
performed a pitot-static ground check on both sides? Were the results
the same?
Cheers Jorgen
From: owner-l29-list-server@matronics.com
[mailto:owner-l29-list-server@matronics.com] On Behalf Of
speedy11@aol.com
Sent: Friday, 11 December 2015 17:13
Subject: L29-List: L-29 Pioto-Static
Request Help from L-29 Experts
I'm having an issue with the airspeed and altimeter indications being
slow to indicate properly. For example, during acceleration and climb
the indicators lag behind the actual numbers. Then when established in
a steady state situation, the airspeed and altimeter indicate exactly
correct - as checked with an accompanying aircraft. The same lag occurs
as the aircraft is slowing or descending.
A ground pitot-static check indicates perfect with no leaks.
Our research has found no blockage thus far of the lines from the booms
to the fuselage.
However, we found three lines attached to the left boom (right boom has
two). Two of them are connected to the pitot and static lines. We are
not sure where the third line goes.
The maintenance diagrams show only two lines to the left boom.
Does anyone have three lines to their left pitot-static boom? Does
anyone know what the third line if for?
Thanks,
Stan Sutterfield
NX4477N
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