Piston helicopter

N4686S

2012 Homebuilt Calidus

Registered No accidents on file
Built
2012
Serial
11023
Class
Piston helicopter
Engines
Rotax 912ULS series
Status
Current as of October 2026
Registered owner
Individual · sign in to see
Based
Dorr, MI
Registration record

N4686S on the FAA register

Type
2012 Homebuilt Calidus
Serial
11023
Engines
Rotax 912ULS series
Registered owner
Individual — the name of an individual registrant is shown to signed-in users. Sign in
Dorr, MI
Certificate issued
2023-04-25
Airworthiness date
2012-05-30
Registration expires
2030-04-30
Airworthiness class
Experimental · amateur-built
Mode S (hex)
A5BA8E
Mode S (octal)
51335216
Seats (type)
2
Weight class
up to 12,499 lb
Kit
Autogyro Usa Llc CALIDUS
Status
Current as of October 2026
Registry history

Timeline

  • 2030-04-30
    Registration expires (renewal due).
  • 2023-04-25
    Certificate of registration issued as N4686S to the current registrant.
  • 2012-05-30
    Airworthiness date on the current FAA record (experimental category (amateur-built)).
  • 1995-07-27
    N4686S previously assigned to a Cessna Turbo R182RG Skylane / TR182RG Skylane / R-182RG (s/n R18201379); cancelled.
  • 1967-12-07
    N4686S previously assigned to a Homebuilt B-8M (s/n 409); cancelled.
Overview

About N4686S

N4686S is a 2012 Homebuilt Calidus, serial number 11023. It is registered to an individual in Dorr, Michigan. The current certificate of registration was issued on April 25, 2023 and expires on April 30, 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 May 30, 2012.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N4686S.

Safety record

Accident & incident history

✓ No NTSB accident or incident reports and no FAA preliminary notices on file for N4686S.

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

Same model

More Homebuilt Calidus aircraft

All 2 Homebuilt Calidus registrations →
Same state

Other aircraft registered in Michigan

All 7,224 aircraft registered in Michigan →
Similar aircraft

Other piston helicopters on the register

Own N4686S?

Get a free valuation, digitize the logbooks, or list it on fyiAero.

Free valuation Logbook transcription

Browse: Aircraft registered in Michigan· 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.