The Collins IND-351A is a dual-pointer GPS/VOR/LOC/Glideslope indicator from the respected Collins Microline series, widely used in general aviation. It features rectilinear meter movements for easier ILS approaches and a mechanical metal case upgrade over the older, crack-prone IND-351.

Key Specifications & Features:

• Design: Mechanically improved with a metal chassis to prevent the cracking plastic issues seen in the standard IND-351.
• Meter Movements: Uses rectilinear movements rather than pendulum, keeping needles perpendicular and making tracking approaches (like ILS) highly intuitive.
• Converters: Does not contain an internal VOR/LOC converter or glideslope receiver. It relies on the external NAV radio (e.g., Collins VIR-351) or a remote glideslope receiver (e.g., Collins GLS-350) for this data.