---------------------------------------------------------- L29-List Digest Archive --- Total Messages Posted Fri 12/11/15: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:13 AM - L-29 Pioto-Static (speedy11@aol.com) 2. 08:53 AM - Re: L-29 Pioto-Static (Jorgen Nielsen) ________________________________ Message 1 _____________________________________ Time: 07:13:09 AM PST US From: speedy11@aol.com 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 ________________________________ Message 2 _____________________________________ Time: 08:53:39 AM PST US From: "Jorgen Nielsen" Subject: RE: L29-List: 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 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message l29-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/L29-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/l29-list Browse Digests http://www.matronics.com/digest/l29-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.