Replacing an airspeed indicator

On Friday, March 7, 2014 2:45:53 PM UTC-7, son_of_flubber wrote:

Also, to anyone with a combo vario/secondary ASI like LXNAV V7, does the AS indicated on the V7 agree with your primary ASI and if not, which one do you trust? .......
Son,
You have to remember that your ASI shows IAS and the V7 shows TAS. Typically these are always different (With a larger difference at higher altitudes and hotter than standard atmosphere). I trust either one but of course you use IAS for things like flap speeds and approach speeds.