# Registered aircraft: TCDS E4CE A list on [TCDS E4CE](https://openairdocs.org/tcds/E4CE.md). Registry models that point at this data sheet: 1,595 registered aircraft in all. Each model’s page lists its aircraft. - [Allison 250-C20 series](https://openairdocs.org/engine/allison-250-c20-series.md): 530 registered aircraft · Registry code 03020 - [Rolls-Royce 250-C300/A1](https://openairdocs.org/engine/rolls-royce-250-c300-a1.md): 355 registered aircraft · Registry code 54232 - [Rolls-Royce 250-C20B](https://openairdocs.org/engine/rolls-royce-250-c20b.md): 215 registered aircraft · Registry code 54385 - [Allison 250-C20B](https://openairdocs.org/engine/allison-250-c20b.md): 113 registered aircraft · Registry code 03081 - [Rolls-Royce 250-C20J](https://openairdocs.org/engine/rolls-royce-250-c20j.md): 82 registered aircraft · Registry code 54181 - [Allison 250-C20](https://openairdocs.org/engine/allison-250-c20.md): 54 registered aircraft · Registry code 03080 - [Rolls-Royce 250-C20W](https://openairdocs.org/engine/rolls-royce-250-c20w.md): 51 registered aircraft · Registry code 54189 - [Rolls-Royce 250-C20](https://openairdocs.org/engine/rolls-royce-250-c20.md): 42 registered aircraft · Registry code 54178 - [Rolls-Royce 250-C300](https://openairdocs.org/engine/rolls-royce-250-c300-series.md): 40 registered aircraft · Registry code 54225 - [Rolls-Royce 250-C20R/2](https://openairdocs.org/engine/rolls-royce-250-c20r-2.md): 24 registered aircraft · Registry code 54185 - [Allison 250-C20J](https://openairdocs.org/engine/allison-250-c20j.md): 16 registered aircraft · Registry code 03088 - [Allison 250-C10D](https://openairdocs.org/engine/allison-250-c10d.md): 13 registered aircraft · Registry code 03035 - [Allison 250-C20C](https://openairdocs.org/engine/allison-250-c20c.md): 9 registered aircraft · Registry code 03082 - [Allison 250-C20R/2](https://openairdocs.org/engine/allison-250-c20r-2.md): 8 registered aircraft · Registry code 03092 - [Rolls-Royce 250-C10D](https://openairdocs.org/engine/rolls-royce-250-c10d.md): 8 registered aircraft · Registry code 54172 - [Rolls-Royce 250-C20C](https://openairdocs.org/engine/rolls-royce-250-c20c.md): 6 registered aircraft · Registry code 54179 - [Rolls-Royce 250-C20R/1](https://openairdocs.org/engine/rolls-royce-250-c20r-1.md): 5 registered aircraft · Registry code 54184 - [Rolls-Royce 250-C20R](https://openairdocs.org/engine/rolls-royce-250-c20r.md): 4 registered aircraft · Registry code 54183 - [Allison 250-C20R](https://openairdocs.org/engine/allison-250-c20r.md): 3 registered aircraft · Registry code 03090 - [Allison 250-C20R/1](https://openairdocs.org/engine/allison-250-c20r-1.md): 3 registered aircraft · Registry code 03091 - [Allison 250-C20W](https://openairdocs.org/engine/allison-250-c20w.md): 3 registered aircraft · Registry code 03096 - [Allison 250-C18](https://openairdocs.org/engine/allison-250-c18.md): 2 registered aircraft · Registry code 03075 - [Allison 250-C18B](https://openairdocs.org/engine/allison-250-c18b.md): 2 registered aircraft · Registry code 03078 - [Rolls-Royce 250-C20F](https://openairdocs.org/engine/rolls-royce-250-c20f.md): 2 registered aircraft · Registry code 54180 - [Rolls-Royce 250-C20S](https://openairdocs.org/engine/rolls-royce-250-c20s.md): 2 registered aircraft · Registry code 54182 - [Allison 250-C20F](https://openairdocs.org/engine/allison-250-c20f.md): 1 registered aircraft · Registry code 03087 - [Rolls-Royce 250-C18](https://openairdocs.org/engine/rolls-royce-250-c18.md): 1 registered aircraft · Registry code 54173 - [Rolls-Royce 250-C20R/4](https://openairdocs.org/engine/rolls-royce-250-c20r-4.md): 1 registered aircraft · Registry code 54186 - [Allison 225-C10](https://openairdocs.org/engine/allison-225-c10.md): 0 registered aircraft · Registry code 03094 - [Allison 225-C10A](https://openairdocs.org/engine/allison-225-c10a.md): 0 registered aircraft · Registry code 03095 - [Allison 250-C10](https://openairdocs.org/engine/allison-250-c10.md): 0 registered aircraft · Registry code 03073 - [Allison 250-C10B](https://openairdocs.org/engine/allison-250-c10b.md): 0 registered aircraft · Registry code 03074 - [Allison 250-C18A](https://openairdocs.org/engine/allison-250-c18a.md): 0 registered aircraft · Registry code 03076 - [Allison 250-C18C](https://openairdocs.org/engine/allison-250-c18c.md): 0 registered aircraft · Registry code 03079 - [Allison 250-C19](https://openairdocs.org/engine/allison-250-c19.md): 0 registered aircraft · Registry code 03077 - [Allison 250-C20R/4](https://openairdocs.org/engine/allison-250-c20r-4.md): 0 registered aircraft · Registry code 03093 - [Allison 250-C20S](https://openairdocs.org/engine/allison-250-c20s.md): 0 registered aircraft · Registry code 03089 - [Rolls-Royce 225-C10](https://openairdocs.org/engine/rolls-royce-225-c10.md): 0 registered aircraft · Registry code 54187 - [Rolls-Royce 225-C10-A](https://openairdocs.org/engine/rolls-royce-225-c10-a.md): 0 registered aircraft · Registry code 54188 - [Rolls-Royce 250-C10](https://openairdocs.org/engine/rolls-royce-250-c10.md): 0 registered aircraft · Registry code 54170 - [Rolls-Royce 250-C10B](https://openairdocs.org/engine/rolls-royce-250-c10b.md): 0 registered aircraft · Registry code 54171 - [Rolls-Royce 250-C18A](https://openairdocs.org/engine/rolls-royce-250-c18a.md): 0 registered aircraft · Registry code 54174 - [Rolls-Royce 250-C18B](https://openairdocs.org/engine/rolls-royce-250-c18b.md): 0 registered aircraft · Registry code 54176 - [Rolls-Royce 250-C18C](https://openairdocs.org/engine/rolls-royce-250-c18c.md): 0 registered aircraft · Registry code 54177 - [Rolls-Royce 250-C19](https://openairdocs.org/engine/rolls-royce-250-c19.md): 0 registered aircraft · Registry code 54175 ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql -- One row per registry model code; the page joins codes that share a name SELECT 'engine' AS kind, m.code, m.manufacturer, m.model, count(g.n_number) AS aircraft FROM 'https://openairdocs.org/data/latest/faa_engine_model.parquet' m LEFT JOIN 'https://openairdocs.org/data/latest/faa_aircraft_registration.parquet' g ON g.engine_model_code = m.code WHERE m.code IN (SELECT code FROM 'https://openairdocs.org/data/latest/faa_engine_model.parquet' WHERE tcds_number = 'E4CE') GROUP BY ALL ORDER BY aircraft DESC, code ``` This list as a web page: https://openairdocs.org/tcds/E4CE/aircraft --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.