# 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`** ..