# N18FW: WMJ CALIDUS

- Status: Valid registration
- Airframe: [WMJ CALIDUS](https://openairdocs.org/model/wmj-calidus) (registry code 05633ZD, 2 seats)
- Engine: [Rotax 912ULS series](https://openairdocs.org/engine/rotax-912uls-series) (registry code 55572)
- Serial number: C00348
- Type: Rotorcraft
- Engine type: 4 cycle
- Kit: Autogyro Gmbh CALIDUS
- Airworthiness: Experimental, amateur built
- Airworthiness date: August 18, 2015
- Certificate issued: February 23, 2019
- Expires: February 28, 2029
- Mode S code: A13EE5
- Registered owner: [Mccarthy Frank D IV](https://openairdocs.org/faa-owner/MCCARTHY%20FRANK%20D%20IV)
- Location: [Weatherford, TX](https://openairdocs.org/faa-place/TX/Weatherford)
- Owner type: Individual
- Owner's area on the map: 32.6684° N, 97.7911° W: Placed by OpenAirDocs at the center of ZIP code 76087, within about 8 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=18FW
- Page: https://openairdocs.org/aircraft/N18FW

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every Rotax 912ULS model are included.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (WMJ CALIDUS)

None in force.

### Matched by engine (Rotax 912ULS series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N18FW.

## FAA accident and incident reports

None matched to N18FW.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Earlier aircraft with N18FW

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N18FW before.

- [Cancelled 2003-05-21](https://openairdocs.org/deregistered/N18FW-2003-05-21): Pitts Special S-1C, S/N 19528-1, built 1976. Exported to United Kingdom. Owner: [Weaver Frederick G](https://openairdocs.org/faa-owner/WEAVER%20FREDERICK%20G), [Ocala, FL](https://openairdocs.org/faa-place/FL/Ocala)

## Related

- Other WMJ CALIDUS aircraft: https://openairdocs.org/model/wmj-calidus/aircraft.md
- The Rotax 912ULS series engine: https://openairdocs.org/engine/rotax-912uls-series.md

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.