Jay. My experience is that ASIs don't last long. They seem to be a victim of vibrations.
But it shows usually up to 20 MPH low. Never heard of 70 Miles difference. Hartmut From: jayschubox Sent: Monday, June 07, 2010 9:33 PM To: [email protected] Subject: [ercoupe-tech] airspeed indicator I have just test flown my '65 Alon after rebuilding from damage sustained in 2001. My airspeed indicator is very slow to start indicating and continues to lag after climb out. On final the indication drops away quickly to near zero while my gps gives a ground speed of 70mph. I have tries adjusting the pitot tube, but seems to give no results. Fittings are all tight and dont appear to leak. My guess is that my airspeed ind. probably needs to be replaced. Anyone else have a similar experience? Suggestions? Thanks. Jay
