# N5121 — STEMME GMBH & CO S10-VT
> **—** Glider · 4-Cycle · Owner: MOUNTAIN STEMME LLC · BOULDER, CO
## Aircraft
- **N-Number:** N5121
- **Serial Number:** 11-023
- **Manufacturer:** STEMME GMBH & CO
- **Model:** S10-VT
- **Year manufactured:** —
- **Type:** Glider
- **Engine type:** 4-Cycle (01 engines)
- **Seats:** 002
- **Weight class:** CLASS 1
- **Mode S code (hex):** `A66B58`
## Owner
- **Name:** MOUNTAIN STEMME LLC
- **Type of registrant:** LLC
- **Location:** BOULDER, CO 803080088, US
## Registration
- **Status:** Valid
- **Certificate issued:** 2025-08-26
- **Last action:** 2025-08-26
- **Expiration:** 2032-08-31
## Source
- [FAA Aircraft Inquiry](https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=5121)
- [ADS-B Exchange live tracking](https://globe.adsbexchange.com/?icao=a66b58)
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