Corrections
I have just returned from a couple of days at Tru-Trak, and thought I should correct some misconceptions.
The upcoming EFIS uses solid state pressure sensors to provide actual indicated airspeed from the airspeed pitot, and barometric altitude as usual with a flight instrument.
It does use GPS as an input for ground track reference, which is displayed on an HSI-like display. It will not have a magnetometer, or an AHRS. It does use 3-axes of solid state gyros, of the same high quality used in the Sorcerer autopilot, that will continue to fly the a/c for some time if the GPS signal is lost.
It will continue to display vertical speed where most artificial horizons show pitch. The display information is derived from the barometric altimeter, a gyro for short-term stability, and GPS data. Tru-track will continue to present that as a superior reference for controlling an airplane in IMC.
The vertical speed indication is instantaneous. GPS ground speed will also be indicated.
The round dials for indicated airspeed and altitude are options, a linear tape representation will also be available as a user option.
I recently read a book about the SR-71 and learned that the AH in that airplane also displayed vertical speed rather than pitch. Of course, it is easy to imagine that a 1 degree pitch-up would result in quite a rate of climb at Mach 3! I have the same problem in my RV8
The sunlight readability of the display is excellent. It will be no problem in any bubble cockpit.
The unit will also include an integrated 2-axis autopilot with altitude pre-select and vertical speed select.
Mr/Ms Moderator, shouldn't this be moved to the EFIS section?