Turbine helicopter

N8972M

1981 Homebuilt BO 105M

Registered No accidents on file
Built
1981
Serial
6085
Class
Turbine helicopter
Engines
2 × Allison 250-C20B
Status
Current as of October 2026
Registered owner
Rocky Mountain Oyster Co Aviation LLC (LLC)
Based
Kalispell, MT
Registration record

N8972M on the FAA register

Type
1981 Homebuilt BO 105M
Serial
6085
Engines
2 × Allison 250-C20B
Registered owner
Rocky Mountain Oyster Co Aviation LLC
Kalispell, MT
Certificate issued
2025-02-04
Airworthiness date
2022-06-28
Registration expires
2032-02-29
Airworthiness class
Experimental · exhibition
Mode S (hex)
AC61FF
Mode S (octal)
53060777
Seats (type)
5
Weight class
up to 12,499 lb
Status
Current as of October 2026
Registry history

Timeline

  • 2032-02-29
    Registration expires (renewal due).
  • 2025-02-04
    Certificate of registration issued as N8972M to the current registrant.
  • 2022-06-28
    Airworthiness date on the current FAA record (experimental category (exhibition)).
  • 1981
    Manufactured (1981).
  • 1972-06-23
    N8972M previously assigned to a Cessna 172L Skyhawk (s/n 17260572); cancelled.
  • 1964-09-09
    N8972M previously assigned to a Beechcraft B33 Debonair / Bonanza Debonair B33 (s/n CD-724); cancelled.
Overview

About N8972M

N8972M is a 1981 Homebuilt BO 105M, serial number 6085. The FAA register lists Rocky Mountain Oyster Co Aviation LLC as the registrant in Kalispell, Montana. The current certificate of registration was issued on February 4, 2025 and expires on February 29, 2032.

The FAA aircraft reference file describes the type as a turbine helicopter, two Allison 250-C20B engines and 5 seats. Its airworthiness certificate is experimental category (exhibition), dated June 28, 2022.

No NTSB accident or incident reports and no FAA preliminary notices are on file for this airframe as N8972M. 1 earlier record involves a different aircraft that carried the same N-number.

Safety record

Accident & incident history

1964-07-31 Accident · Nashville Tenn, 42 Damage: Destroyed NTSB · 2 0613
Reported aircraft: Beechcraft 35-B33 — a different aircraft that carried the N8972M registration before this airframe.

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

Same model

More Homebuilt BO 105M aircraft

All 14 Homebuilt BO 105M registrations →
Same state

Other aircraft registered in Montana

All 6,049 aircraft registered in Montana →
Similar aircraft

Other turbine helicopters on the register

Own N8972M?

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

Free valuation Logbook transcription

Browse: Aircraft registered in Montana· 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.