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N50644Ryan Aeronautical ST3KR · 1941

StandardKinner R5 SERIESOttumwa, IA

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N50644 is a 1941 Ryan Aeronautical ST3KR. It is a fixed-wing single-engine aircraft with 2 seats, powered by a Kinner R5 series rated at 160 horsepower. The registration is active, with the registrant based in Ottumwa, IA. Its standard airworthiness certificate was issued in Oct 1960. It has been registered to its current owner since Jun 1987.

85 years old
1 of 119 Ryan Aeronautical ST3KR
No NTSB events on record

More like this:Ryan Aeronautical ST3KR Aircraft in Iowa Standard

1987

FAA record · Jun 1987 · Registration

Registered to current owner

Registered to Airpower Museum INC. Registrant based in Ottumwa, IA.

1960

FAA record · Oct 1960 · Airworthiness

Airworthiness certificate issued — Standard

Manufacturer: Ryan Aeronautical. Model ST3KR. Serial 1254.

That's everything on file so far — TailWiki checks the FAA registry daily and adds new entries as N50644's record changes.

More from Airpower Museum

FAA record

and 24 more registered to the same entity in IA.

Aircraft

ManufacturerRyan Aeronautical

ModelST3KR

Year1941

CategoryStandard

TypeFixed-wing single-engine

Serial1254

EngineKinner R5 SERIES

Horsepower160

Seats2

BasedOttumwa, IA

RegistrantAirpower Museum INC

Safety record

No NTSB accidents or incidents on record

Checked against the public NTSB aviation database.

Registration history

1987 — present

Airpower Museum INC · Ottumwa, IA

Oct 1960

Airworthiness certificate issued

Owner locations generalized to city/state for privacy. Ownership lineage grows as TailWiki tracks daily FAA updates.

View earlier registration history

TailWiki has tracked this tail since Aug 2026. The FAA registry is a snapshot, not a history — earlier owners aren't in the public record. TailWiki reconstructs ownership changes by watching daily FAA updates going forward, so this section fills in the longer TailWiki runs.

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