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N55ATRoutt SEMINOLE RS-1

ExperimentalLycoming 0-290 SERIESKalispell, MT

Claim this aircraft

N55AT is a Routt SEMINOLE RS-1. It is a fixed-wing single-engine aircraft with 1 seat, powered by a Lycoming 0-290 series rated at 140 horsepower. The registration is active, with the registrant based in Kalispell, MT. Its experimental airworthiness certificate was issued in Mar 1979. It has been registered to its current owner since May 2020.

No NTSB events on record

More like this:Aircraft in Montana Experimental

2020

FAA record · May 2020 · Registration

Registered to current owner

Registered to August Aero LLC. Registrant based in Kalispell, MT.

1979

FAA record · Mar 1979 · Airworthiness

Special Airworthiness Certificate issued — Experimental

Manufacturer: Routt. Model SEMINOLE RS-1. Serial 001.

That's everything on file so far — TailWiki checks the FAA registry daily and adds new entries as N55AT's record changes.

More from August Aero

FAA record

and 27 more registered to the same entity in MT.

Aircraft

ManufacturerRoutt

ModelSEMINOLE RS-1

CategoryExperimental

TypeFixed-wing single-engine

Serial001

EngineLycoming 0-290 SERIES

Horsepower140

Seats1

BasedKalispell, MT

RegistrantAugust Aero LLC

Safety record

No NTSB accidents or incidents on record

Checked against the public NTSB aviation database.

Registration history

2020 — present

August Aero LLC · Kalispell, MT

Mar 1979

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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