Eliminates internal fogging of windshields and subsequent moisture problems. The gold-tinted heat film also acts as a sunscreen. Models 690, 690A, 690B, 690C, 690D, 695, 695A, 695B.
Provides individual strobe light and individual tail light that is more economical to maintain with longer rated bulb life. Models 690B, 690C, 690D, 695, 695A.
Provides a fully automatic airspeed monitoring system, which, because of the low drag feature that allows the Commander jet props to easily increase airspeed during let down, has introduced the added safety feature of an aural warning in the event of an inadvertent overspeed of the airplane. The sensing switch is pre-set to aurally alert the pilot of airspeeds exceeding 243 KIAS. Models 690, 690A, 690B, 690C, 695.
Provides improved efficiency of Environmental Control Unit (ECU) by ducting only outside air across heat exchanger. Models 690C, 695.
Provides a fuel low level warning system for the earlier Commander Models except 680T, 680V, 680W, 681.