Piston helicopter

N321Y

2019 Homebuilt Mto Sport

Registered No accidents on file
Built
2019
Serial
M01702
Class
Piston helicopter
Engines
Rotax 914UL2-01
Status
Current as of October 2026
Registered owner
Rhinestone Gyros LLC (LLC)
Based
Kihei, HI
Registration record

N321Y on the FAA register

Type
2019 Homebuilt Mto Sport
Serial
M01702
Engines
Rotax 914UL2-01
Registered owner
Rhinestone Gyros LLC
Kihei, HI
Certificate issued
2026-07-13
Airworthiness date
2019-09-11
Registration expires
2033-07-31
Airworthiness class
Experimental · amateur-built
Mode S (hex)
A3742D
Mode S (octal)
50672055
Seats (type)
2
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2033-07-31
    Registration expires (renewal due).
  • 2026-07-13
    Certificate of registration issued as N321Y to the current registrant.
  • 2019-09-11
    Airworthiness date on the current FAA record (experimental category (amateur-built)).
  • 1971-08-25
    N321Y previously assigned to a Fairchild PT-26 (s/n T40310); cancelled.
Overview

About N321Y

N321Y is a 2019 Homebuilt Mto Sport, serial number M01702. The FAA register lists Rhinestone Gyros LLC as the registrant in Kihei, Hawaii. The current certificate of registration was issued on July 13, 2026 and expires on July 31, 2033.

The FAA aircraft reference file describes the type as a piston helicopter, one Rotax 914UL2-01 engine and 2 seats. Its airworthiness certificate is experimental category (amateur-built), dated September 11, 2019.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N321Y.

Safety record

Accident & incident history

✓ No NTSB accident or incident reports and no FAA preliminary notices on file for N321Y.

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

Same state

Other aircraft registered in Hawaii

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Similar aircraft

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  • N279AT2017 Autogyro Usa Calidus

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Browse: Aircraft registered in Hawaii· 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.