Single-engine piston

N111SF

2021 Homebuilt Williams CX4

Registered No accidents on file
Built
2021
Serial
146-X
Class
Single-engine piston
Engines
Revmaster 2100D
Status
Current as of October 2026
Registered owner
Individual · sign in to see
Based
Tuttle, OK
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Registration record

N111SF on the FAA register

Type
2021 Homebuilt Williams CX4
Serial
146-X
Engines
Revmaster 2100D
Registered owner
Individual — the name of an individual registrant is shown to signed-in users. Sign in
Tuttle, OK
Certificate issued
2020-12-07
Airworthiness date
2021-11-15
Registration expires
2027-12-31
Airworthiness class
Experimental · amateur-built
Mode S (hex)
A03180
Mode S (octal)
50030600
Seats (type)
1
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2027-12-31
    Registration expires (renewal due).
  • 2021-11-15
    Airworthiness date on the current FAA record (experimental category (amateur-built)).
  • 2020-12-07
    Certificate of registration issued as N111SF.
Overview

About N111SF

N111SF is a 2021 Homebuilt Williams CX4, serial number 146-X. It is registered to an individual in Tuttle, Oklahoma. The current certificate of registration was issued on December 7, 2020 and expires on December 31, 2027.

The FAA aircraft reference file describes the type as a single-engine piston, one Revmaster 2100D engine and 1 seats. Its airworthiness certificate is experimental category (amateur-built), dated November 15, 2021.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N111SF.

Safety record

Accident & incident history

✓ No NTSB accident or incident reports and no FAA preliminary notices on file for N111SF.

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

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Browse: Aircraft registered in Oklahoma· 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.