I have a friend that owns an RV6 that I maintain. He complained that recently the Air Speed indicator (Vans Steam) reads 15 mph high. I removed the AS ind. and checked it with a manometer, read correctly, checked the static system, thinking a pluged system could cause the error as the aircraft climbed, no problem found, finally found a significant Leak in the Pitot system, repaired the leak, (bad plastic tubeing to the autopilot pitot port), AS now reads correctly. I don't understand how a leak in the pitot system could cause the AS to read high, I would think it would read low???? Is there something about fluid dynamics that I don't understand??
What am I missing???
Dick
What am I missing???
Dick