|The true airspeed indicator corrects the indicated airspeed for changes in temperature and pressure encountered as aircraft changes altitude. By aligning outside temperature and pressure altitude with setting knob, movable airspeed scale is rotated proper amount so pointer registers true airspeed. Factory new 8100 series by United. TSO’D for certificated aircraft. Dual scale.|
Yes, for an additional fee. Please state all the specifics at time of order with the sales agent or in the special instructions form when ordering online. For custom range markings you will need to turn in a copy of the cover of your POH, a copy of the limitations section page of the POH and the serial and tail number of your plane.
These instruments have 1/8-27 ANPT threading.