Twin piston

N121SC

1946 Beechcraft D18S

Registered No accidents on file
Built
1946
Serial
A-85
Class
Twin piston
Engines
2 × Pratt & Whitney R-985 series
Status
Current as of October 2026
Registered owner
North Bay Air Museum (Corporation)
Based
Sonoma, CA
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1946 Beechcraft D18S
Representative photo of a Beechcraft D18S. Not a photo of N121SC.
Registration record

N121SC on the FAA register

Type
1946 Beechcraft D18S
Serial
A-85
Engines
2 × Pratt & Whitney R-985 series
Registered owner
North Bay Air Museum
Sonoma, CA
Certificate issued
2023-03-11
Airworthiness date
1956-07-09
Registration expires
2030-03-31
Airworthiness class
Standard · normal
Mode S (hex)
A058FC
Mode S (octal)
50054374
Seats (type)
10
Weight class
up to 12,499 lb
Range (type)
632 nm
Cruise (type)
183 kt
Status
Current as of October 2026
Registry history

Timeline

  • 2030-03-31
    Registration expires (renewal due).
  • 2023-03-11
    Certificate of registration issued as N121SC.
  • 1956-07-09
    Airworthiness date on the current FAA record (standard category (normal)).
  • 1946
    Manufactured (1946).
Overview

About N121SC

N121SC is a 1946 Beechcraft D18S, serial number A-85. The FAA register lists North Bay Air Museum as the registrant in Sonoma, California. The current certificate of registration was issued on March 11, 2023 and expires on March 31, 2030.

The FAA aircraft reference file describes the type as a twin piston, two Pratt & Whitney R-985 series engines and 10 seats. Published figures for the type give a cruise speed of about 183 knots and a range of about 632 nm; actual performance depends on configuration, load and conditions. Its airworthiness certificate is standard category (normal), dated July 9, 1956.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N121SC.

Cruise
183 kt
Range
632 nm
Fuel burn
49 gph

Published figures for the Beechcraft D18S type. They describe the model, not this airframe's equipment or condition.

Safety record

Accident & incident history

✓ No NTSB accident or incident reports and no FAA preliminary notices on file for N121SC.

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

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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.