Credit for the nose and cockpit design taken from zedaru57's 787. Everything else was designed by yours truly.

The AR40 is Ainoer's first long-haul widebody airliner. A solid choice for intercontinental routes with its practicality, efficiency, and guaranteed passenger satisfaction with onboard amenities.

AG1 for Nav and Strobe Lights
AG2 for Landing Lights
AG3 for Beacon Lights

Specifications:

Cruise Speed (36,000 ft)
• 940 km/h (0.75 mach / 507 kn)

Passenger Capacity
• Usually 302 in three class layout
Economy in 2-4-2
Business in 3-3
First in 2-2

I suggest accelerating the aircraft slowly since Simpleplane's engines accelerate in a linear (thus unrealistically rapid) manner