Piston helicopter

N31BF

2014 Homebuilt Calidus

Registered No accidents on file
Built
2014
Serial
C00330
Class
Piston helicopter
Engines
Rotax 912ULS series
Status
Current as of October 2026
Registered owner
Individual · sign in to see
Based
Rhome, TX
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Registration record

N31BF on the FAA register

Type
2014 Homebuilt Calidus
Serial
C00330
Engines
Rotax 912ULS series
Registered owner
Individual — the name of an individual registrant is shown to signed-in users. Sign in
Rhome, TX
Certificate issued
2014-08-06
Airworthiness date
2014-09-10
Registration expires
2027-08-31
Airworthiness class
Experimental · amateur-built
Mode S (hex)
A34497
Mode S (octal)
50642227
Seats (type)
2
Weight class
up to 12,499 lb
Kit
Autogyro Usa Llc CALIDUS
Status
Current as of October 2026
Registry history

Timeline

  • 2027-08-31
    Registration expires (renewal due).
  • 2014-09-10
    Airworthiness date on the current FAA record (experimental category (amateur-built)).
  • 2014-08-06
    Certificate of registration issued as N31BF to the current registrant.
  • 2010-08-31
    N31BF previously assigned to a S.O.C.A.T.A. MS894A (s/n 11682); cancelled.
Overview

About N31BF

N31BF is a 2014 Homebuilt Calidus, serial number C00330. It is registered to an individual in Rhome, Texas. The current certificate of registration was issued on August 6, 2014 and expires on August 31, 2027.

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 September 10, 2014.

No NTSB accident or incident reports and no FAA preliminary notices are on file for this airframe as N31BF. 1 earlier record involves a different aircraft that carried the same N-number.

Safety record

Accident & incident history

2008-08-16 Accident · Fulton, NY Damage: Substantial Minor injury NTSB · NYC08LA280
Reported aircraft: Socata MS894A — a different aircraft that carried the N31BF registration before this airframe.
Probable cause: A loss of engine power due to fatigue failure of the crankshaft and the No. 3 engine cylinder connecting rod as a result of improper machining of the engine crankshaft during engine overhaul by maintenance personnel.

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

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Similar aircraft

Other piston helicopters on the register

  • N279AT2017 Autogyro Usa Calidus
  • N233AG2018 Autogyro Usa Ii Calidus

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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.