# STC SA00566WI

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Compro Aviation Inc, United States
- Description: Installation of a Compro Aviation Driftfinder DFS-10 system which injects oil into engine exhaust to produce smoke to determine wind speed and direction.
- Applied: May 30, 1995
- Status date: September 4, 1997
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A4SW](https://openairdocs.org/tcds/A4SW)
- Certificate PDF: https://openairdocs.org/files/sha256/c7/3c/c73cb79d6c2700a1f1547e87df294b282c8c892c30cfc03d26ea68eb2c41471f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B506BF14A8E98A5586257082004F3872.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA00566WI

## ADs that name it (0)

None.

## Approved models (13)

- Ayres Corporation S-2R ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation S2R-G10 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation S2R-G5 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation S2R-G6 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation S2R-R1340 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation S2R-R1820 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation S2R-R3S ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation S2R-T11 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation S2R-T15 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation S2R-T34 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation S2R-T45 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation S2R-T65 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation S2RHG-T65 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))

## What the certificate says

The certificate is a scan without a text layer; open the PDF to read it.

## Every issue (1)

- September 4, 1997: Issued, Current. [certificate](https://openairdocs.org/files/sha256/c7/3c/c73cb79d6c2700a1f1547e87df294b282c8c892c30cfc03d26ea68eb2c41471f)

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