At 09:31 AM 2/4/2012, you wrote: >Are you saying to go >ahead and install a port on the side of the fuselage and also stay >connected to >the port out on the wing? That would be easy to do, I just hadn't thought >of it. > Todd +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
No, I'd NOT recommend two static sources, just one reliable accurate source. Sounds like you have something major wrong if your ASI is that inaccurate. Maybe it is your pitot system or even you ASI instrument. Any ASI system is going to be off, sometimes by a considerable amount, in a side slip or at high angles of attack. If the pitot and static tubes are not aligned with the direction of flight they are inaccurate by some amount. I once took off and shortly after liftoff it appeared the ASI reading was rather low. For a second or two I attributed it to the gusty head wind. I lowered the nose a bit and when the airspeed was slow to move up I assumed there was a problem with the ASI system. I leveled off at pattern altitude and went to a full throttle run. The ASI maxed out at 110 MPH. I knew then that there was a problem in the system. The reading was so far off that I had to totally disregard it for approach and landing. After stepping around the end of the wing on shut down the problem was obvious. The pitot / static tubes were bent at least 20 degrees off line. So much for a good preflight. :-( My advise would be to check the integrity of the entire system, the pitot tube and all connections in line, the static tube and all connections, correct hookup to the instrument, proper alignment of the tubes in flight, the plug in the lead edge of the static tube as well as the size and location of the small holes in the side of the static tube. I'm guessing your problem is more than just a poor static source if the static tube is anywhere near correct. Get another set of trained eyes to check it over. What about the other instruments that use the static source. Are they way off too? Altimeter, VSI, encoder (if you have a xponder).......................... Good luck............ Larry Flesner
