These aircraft will be approved for night operations on specific routes if they demonstrate effective compliance and risk mitigation, but it is important to ensure that flight commencement or termination does not fall within the circadian low window, according to the DGCA.

Yes, single-engine planes can legally and safely fly at night in most jurisdictions, including under FAA (U.S.) and EASA (Europe) regulations, though the requirements are stricter than for daytime flight. For private pilots, the aircraft must be equipped with specific lighting, including position lights (red, green, and white), an anti-collision light system, and a landing light if the flight is for hire. Pilots must also meet specific "night currency" requirements, such as having performed at least three takeoffs and landings to a full stop at night within the preceding 90 days to carry passengers. In Europe, EASA recently expanded rules to allow commercial single-engine turbine operations at night (SET-IMC), provided the aircraft meets high maintenance standards and the crew is specially trained. The primary risk is engine failure in the dark, so pilots often plan routes that keep them within gliding distance of well-lit runways or open areas.