Originally Posted by
reid
If a company were to have an OpSpec requiring an SIC, do you know what number it would likely be? (A???)
The basic regulatory standard for IFR operations is an SIC.
An operations specification must be issued to operate single pilot with autopilot, in lieu of a SIC.
The SIC is always required, unless the operator (and pilot) is authorized per OpSpec to fly with an autopilot in lieu of the SIC.
https://www.ecfr.gov/cgi-bin/text-id..._1101&rgn=div8
§135.101 Second in command required under IFR.
Except as provided in §135.105, no person may operate an aircraft carrying passengers under IFR unless there is a second in command in the aircraft.
135.101 has remained unchanged since 1997.