# N537SR — ROHLFS R&D LLC R-330 MK1
> **—** Rotorcraft · Turbo-Fan · Owner: — · , 
## Aircraft
- **N-Number:** N537SR
- **Serial Number:** 186975008351
- **Manufacturer:** ROHLFS R&D LLC
- **Model:** R-330 MK1
- **Year manufactured:** —
- **Type:** Rotorcraft
- **Engine type:** Turbo-Fan (01 engines)
- **Seats:** 000
- **Weight class:** CLASS 1
- **Mode S code (hex):** `A6CC0E`
## Owner
- **Name:** —
- **Type of registrant:** —
- **Location:** ,  , 
## Registration
- **Status:** Triennial Aircraft Registration returned undeliverable
- **Certificate issued:** —
- **Last action:** 2026-03-25
- **Expiration:** —
## Source
- [FAA Aircraft Inquiry](https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=537SR)
- [ADS-B Exchange live tracking](https://globe.adsbexchange.com/?icao=a6cc0e)
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