# STC SG4-741

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Williams John W, United States
- Description: Bubble canopies over each cockpit and change in configuration of vertical and horizontal tail.
- Status date: January 1, 1960
- Product: Aircraft, Glider
- Certification basis: Part 21
- Data sheets: [TCDS G-15](https://openairdocs.org/tcds/G-15)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E3A74028A7B0303A86256CD800776BCA.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SG4-741

## ADs that name it (0)

None.

## Approved models (1)

- Laister-Kauffmann Aircraft Corporation LK-10A (Army TG-4A) ([TCDS G-15](https://openairdocs.org/tcds/G-15))

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