# STC SH2231NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Herculite Products, Inc, United States
- Description: Installation of Pheromone aerial application system. (47H-1 Restricted cat.)
- Status date: January 30, 1984
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H-1](https://openairdocs.org/tcds/H-1)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/086CC9F6622DE4B785256CC2005C2F8C.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SH2231NM

## ADs that name it (0)

None.

## Approved models (3)

- Bell Helicopter Textron 47G Series ([TCDS H-1](https://openairdocs.org/tcds/H-1))
- Bell Helicopter Textron 47G-2 (USAF H-13H) ([TCDS H-1](https://openairdocs.org/tcds/H-1))
- Bell Helicopter Textron 47H-1 ([TCDS H-1](https://openairdocs.org/tcds/H-1))

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