Piston helicopter

N556ST

Homebuilt Calidus

Registered No accidents on file

Built

—

Serial

C00294

Class

Piston helicopter

Engines

Rotax 912ULS series

Status

Current as of October 2026

Registered owner

Individual · sign in to see

Based

Waco, TX

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Registration record

N556ST on the FAA register

Type

Homebuilt Calidus

Serial

C00294

Engines

Rotax 912ULS series

Registered owner

Individual — the name of an individual registrant is shown to signed-in users. Sign in

Waco, TX

Certificate issued

2020-03-25

Airworthiness date

2014-03-20

Registration expires

2030-03-31

Airworthiness class

Experimental · amateur-built

Mode S (hex)

A71757

Mode S (octal)

51613527

Seats (type)

Weight class

up to 12,499 lb

Kit

Autogyro Gmbh CALIDUS

Status

Current as of October 2026

Registry history

Timeline

2030-03-31
Registration expires (renewal due).
2020-03-25
Certificate of registration issued as N556ST.
2014-03-20
Airworthiness date on the current FAA record (experimental category (amateur-built)).

Overview

About N556ST

N556ST is a Homebuilt Calidus, serial number C00294. It is registered to an individual in Waco, Texas. The current certificate of registration was issued on March 25, 2020 and expires on March 31, 2030.

The FAA aircraft reference file describes the type as a piston helicopter, one Rotax 912ULS series engine and 2 seats. Its airworthiness certificate is experimental category (amateur-built), dated March 20, 2014.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N556ST.

Safety record

Accident & incident history

✓ No NTSB accident or incident reports and no FAA preliminary notices on file for N556ST.

Sources: NTSB aviation accident database and CAROL case system, FAA preliminary accident & incident notices. Search accident records

Same state

Other aircraft registered in Texas

N556SD

2011 American Eurocopter AS350B3

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Similar aircraft

Other piston helicopters on the register

N233AG2018 Autogyro Usa Ii Calidus
N279AT2017 Autogyro Usa Calidus

Browse: Aircraft registered in Texas· Registry by state· FAA registry stats

Data: FAA Aircraft Registry (October 2026), including deregistered aircraft; NTSB and FAA accident data; fyiAero listing history. Individual owners' names are shown to signed-in users and street addresses are never shown. Type figures are published specifications, not this aircraft's.