Madhatter Posted August 13, 2013 Report Share Posted August 13, 2013 When I picked up my 2006 CTSW I was told it was one of the fastest CTs they ever sold. I was not familiar with the aircraft performance so had no basis to question it. During my flight training I noticed that the analog airspeed indicator was erratic and at times indicated up to 130 - 135 knots and was duplicated on the Dynon. All my approaches seemed slower than the 60 knots indicated and the controls seemed a bit sloppy. When I got the plane home I connected my static tester to the aircraft and found a significant leak in the static system including a case leak in the analog airspeed indicator. After correcting the leaks my indicated airspeed was a steady 118-120 knots. Almost all non pressurized aircraft develope a low pressure in the cabin, some worse than others. This will cause a false increase in airspeed and altimeter indications. With the side vents open on the CT and a static leak you will be flying up to 10 knots slower than indicated, this could be a big problem on a 50 knot approach So if you are seeing 130 + knots indicated and erratic airspeed and altimeter fluctuations you might want to have the static checked. It's easy to do with the right equipement however it is easy to destroy static instruments if done improperly. Link to comment Share on other sites More sharing options...
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