Ed Cesnalis Posted July 28, 2019 Report Share Posted July 28, 2019 2 flights in a row, same pattern. departure - can't get indicated climb speed, have to climb at less than 60kts IAS cruise / climb - IAS soon degrades to zero cruise IAS returns and looks normal cruise / descent / landing - IAS goes to 200kts or higher. Taxi back indicating 100kts. 2 days in a row, same pattern. Quote Link to comment Share on other sites More sharing options...
Brian Posted July 28, 2019 Report Share Posted July 28, 2019 Water in the line trapped and flowing in such a way that it shuts off the airflow when you're not level. Quote Link to comment Share on other sites More sharing options...
Ed Cesnalis Posted July 28, 2019 Author Report Share Posted July 28, 2019 26 minutes ago, Brian said: Water in the line trapped and flowing in such a way that it shuts off the airflow when you're not level. Maybe, at least part of it. Somehow its both pitot and static Quote Link to comment Share on other sites More sharing options...
WmInce Posted July 28, 2019 Report Share Posted July 28, 2019 Static port clear? Pitot tube removed, inspected, found clear? Connection fittings all secure? Quote Link to comment Share on other sites More sharing options...
Ed Cesnalis Posted July 28, 2019 Author Report Share Posted July 28, 2019 1 hour ago, WmInce said: Static port clear? Pitot tube removed, inspected, found clear? Connection fittings all secure? good questions, thanks Quote Link to comment Share on other sites More sharing options...
WmInce Posted July 28, 2019 Report Share Posted July 28, 2019 19 minutes ago, Ed Cesnalis said: good questions, thanks You're welcome. Quote Link to comment Share on other sites More sharing options...
Madhatter Posted July 29, 2019 Report Share Posted July 29, 2019 Maybe a small leak in the diaphragm and acts like a rate of climb. Would be easy to check. Pitot static test box or calibrated mouth and tongue (very carefully ). Best to remove the airspeed to check it, which eliminates other variables. Quote Link to comment Share on other sites More sharing options...
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