# N4521 — AUTEL ROBOTICS EVO II PRO
> **—** Rotorcraft · Electric · Owner: U S DEPARTMENT OF ENERGY · OAK RIDGE, TN
## Aircraft
- **N-Number:** N4521
- **Serial Number:** HV5920322100
- **Manufacturer:** AUTEL ROBOTICS
- **Model:** EVO II PRO
- **Year manufactured:** —
- **Type:** Rotorcraft
- **Engine type:** Electric (04 engines)
- **Seats:** 000
- **Weight class:** CLASS 4
- **Mode S code (hex):** `A57C05`
## Owner
- **Name:** U S DEPARTMENT OF ENERGY
- **Type of registrant:** Government
- **Location:** OAK RIDGE, TN 378316144, US
## Registration
- **Status:** Valid
- **Certificate issued:** 2021-09-21
- **Last action:** 2023-06-10
- **Expiration:** 2028-09-30
## Source
- [FAA Aircraft Inquiry](https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4521)
- [ADS-B Exchange live tracking](https://globe.adsbexchange.com/?icao=a57c05)
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