Final answer:
An Air Taxi (703) flying in single pilot in IMC must be equipped with a Flight Management System, autopilot system, and weather radar.
Step-by-step explanation:
In order for an Air Taxi (703) to fly in single pilot in Instrument Meteorological Conditions (IMC), the aircraft must be equipped with specific instruments and avionics to ensure safe operation.
The main instrument required for flying in IMC is a Flight Management System (FMS) which includes a Global Positioning System (GPS) for navigation. The FMS helps the pilot with flight planning, route navigation, and approach procedures.
In addition to the FMS, the aircraft must have an autopilot system to assist with maintaining the desired flight path and altitude, as well as an advanced weather radar to detect and avoid hazardous weather conditions.