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N421QB

Built 1952 · registered US

3 for sale56 registered

Free alerts when N421QB's registration or status changes, or the HARVARD MK IV market moves.

ActiveManufacturer Canadian Car & Foundry Model HARVARD MK IV
Representative photo of a Canadian Car & Foundry HARVARD MK IVType photo — not this specific aircraftPhoto: Eric Friedebach · CC BY 2.0
This aircraft is a
Canadian Car & Foundry HARVARD MK IV(T6)
Full specs

HARVARD MK IV for sale now

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Exterior view of a 1951 HARVARD MKIV, C-FWWO.23 photos
1951 Canadian CAR & Foundry Harvard Mkiv
C-FWWO4,889.8 hrWinnipeg, Canada
Price on requestListed 2mo ago
Originally listed on external source
A black warbird aircraft with a checkered nose and US star insignia, registration NX1467, parked on an airfield.16 photos
1952 North American Harvard Mark IV
N14672,666 hrWest Palm Beach, USA
$350,000Listed 2mo ago
Originally listed on external source
Exterior view of a 1952 Harvard Mk IV, N5101W.11 photos
1952 Harvard Mk IV
N5101WPeachtree City, USA
Price on requestListed 1y+ ago
Originally listed on external source

Flight activity

(6 tracking legs recorded)
Last 30 days
0
Last 90 days
6
Last seen
10 Aug 2026
Tracked since
7 Aug 2026

Frequent routes: PAED → PAED (2)

  • … → PAED10 Aug 2026 · 1h 42m
  • … → PAED9 Aug 2026 · 6h 05m
  • PAED → PAED9 Aug 2026 · 17h 01m
  • PAED → PAED8 Aug 2026 · 3h 55m
  • … → PAED8 Aug 2026 · 18h 04m
  • … → PAED7 Aug 2026 · 0h 10m

From ADS-B observations collected since May 2026. Coverage depends on ground-receiver density; gaps do not mean the aircraft did not fly.

How common is this aircraft?
56Canadian Car & Foundry HARVARD MK IV registered worldwide

Common. More common than 66% of the aircraft models we track.

More HARVARD MK IV aircraft

Other HARVARD MK IV airframes by tail number — same model as N421QB.

See all 56 registered HARVARD MK IV
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Registration history

(1)
  • N421QBUSACTIVE
    REGISTRATION PENDING
    —

Owner names are published by the issuing civil registry (FAA / CCARCS / CASA / ANAC / NZ CAA). Owner addresses present in the source are not republished here. Registered owner? Request removal

N421QB — frequently asked
What aircraft model is N421QB?

N421QB is a Canadian Car & Foundry HARVARD MK IV, built in 1952. Sprinkle's record for N421QB covers its lineage, ownership history and specifications.

Is N421QB currently active?

Registry records list N421QB's status as Active, registered in United States — a Canadian Car & Foundry HARVARD MK IV.

What is the manufacturer serial number (MSN) of N421QB?

N421QB carries manufacturer serial number (MSN) CCF-4-212, the serial assigned to this Canadian Car & Foundry HARVARD MK IV airframe when it was built.

What is the ICAO24 / Mode S code for N421QB?

N421QB's ICAO24 (Mode S) transponder code is A500B6 — the hex address the Mode S transponder on this Canadian Car & Foundry HARVARD MK IV broadcasts.