FAA · Type Certificate Data Sheet
TCDS A-591
Commonwealth Aircraft Inc.
Models covered (6)
Certification basis — 14 CFR
Former holders
- Rearwin
Fleet view · 12 registered tails
Engineering specs aggregated from the FAA Aircraft Registry — what every actually-flying tail under this TCDS reports. Median + 10th–90th-percentile range across the active fleet.
Seats
2
n=12
Horsepower
90
70–90
Cruise (kts)
78
78–78
Year of mfr
1938
1936–1939
Engines on the type, by tail count
- KEN ROYCE 90-5 SERIES 6
- LEBLOND 85 SERIES 2
- LEBLOND 70 SERIES 1
- AMA/EXPR UNKNOWN ENG 1
The TCDS PDF on drs.faa.gov is the authoritative document for design-as-certified weight limits, performance, equipment, AD compliance times, and operating limitations. Open on drs.faa.gov ↗ DRS frequently breaks — when it does, the fleet view above and the cross-links below are usually what you actually need.