This category classifies articles supported by the Aviation WikiProject according to an assessment of the article's quality. Articles are automatically placed into the appropriate sub-category when a rating is given and the appropriate parameter is added to the project banner; please see the assessment department and the project banner instructions for more information.
 FA |  A |  GA | B | C | Start | Stub | FL | List | Category | Disambig | File | Portal | Project | Redirect | Template | NA | ??? | Total |
| 147 | 63 | 569 | 4,496 | 9,360 | 19,564 | 16,977 | 13 | 2,248 | 14,313 | 635 | 2,924 | 624 | 118 | 3,303 | 2,824 | 165 | 362 | 78,705 |
An article's quality assessment is generated from the class parameter in the {{WikiProject Banner Shell}}. Articles that have the {{WikiProject Aviation}} project banner on their talk page will be added to the appropriate categories by quality.
The following values may be used for the class parameter to describe the quality of the article (see Wikipedia:Content assessment for assessment criteria):
| FA (for featured articles only; adds articles to Category:FA-Class aviation articles) | FA |
|
| A (adds articles to Category:A-Class aviation articles) | A |
|
| GA (for good articles only; adds articles to Category:GA-Class aviation articles) | GA |
|
| B (adds articles to Category:B-Class aviation articles) | B | |
| C (adds articles to Category:C-Class aviation articles) | C | |
| Start (adds articles to Category:Start-Class aviation articles) | Start | |
| Stub (adds articles to Category:Stub-Class aviation articles) | Stub | |
| FL (for featured lists only; adds articles to Category:FL-Class aviation articles) | FL |
|
| List (adds articles to Category:List-Class aviation articles) | List |
For non-standard grades and non-mainspace content, the following values may be used for the class parameter:
| Category (for categories; adds pages to Category:Category-Class aviation articles) | Category | |
| Disambig (for disambiguation pages; adds pages to Category:Disambig-Class aviation articles) | Disambig | |
| File (for files and timed text; adds pages to Category:File-Class aviation articles) | File | |
| Portal (for portal pages; adds pages to Category:Portal-Class aviation articles) | Portal | |
| Project (for project pages; adds pages to Category:Project-Class aviation articles) | Project | |
| Redirect (for redirect pages; adds pages to Category:Redirect-Class aviation articles) | Redirect | |
| Template (for templates and modules; adds pages to Category:Template-Class aviation articles) | Template | |
| NA (for any other pages where assessment is unnecessary; adds pages to Category:NA-Class aviation articles) | NA | |
| ??? (articles for which a valid class has not yet been provided are listed in Category:Unassessed aviation articles) | ??? |