codenames

The codenames for NXD airliners

Class Letter

Letter	Role	Number Range	Example
E	Economy / Glider	100–300	E220
A	Airliner / Transport	300–500	A350
F	Fighter / Performance	400–900	F780
S	Luxury / Executive	500–900	S650

Number range

Range	Meaning	Typical Use
100	Small / trainer class	Entry level, single-engine gliders
200	Light / compact	Small electric planes
300	Medium / balanced	Light airliners or medium range
400	Mid-heavy / higher power	Large airliners or light fighters
500	Large / advanced	Wide-body jets or heavy fighters
600	Experimental / tech demonstrator	Upgraded internals
900	Flagship / specialized	Supersonic or long-range military

Generation

N1 N2 N3 ..