Great Lakes 2T-1 Sport Trainer

The Great Lakes Sport Trainer, a 1929 aerobatic biplane with two tandem open cockpits: the original 2T-1 and 2T-1A built 1929-33 with Cirrus inline engines (about 260 made), and the 2T-1A-2, a 1970s reproduction with a 180 hp Lycoming IO-360 and modern systems that looks the same and is not the same aeroplane. Type certificate A18EA.

The variants

MODEL	YEARS	ACTIVE	TAILFAX SCORE	WHAT CHANGED
2T-1	1929–1930	6	—	Original 1929: 85 hp Cirrus
2T-1A	1930–1933	35	Partial 5.6/30	Enlarged tail, 90 hp Cirrus
2T-1A-2	1973–1982	115	20.2/50	1970s reproduction: 180 hp IO-360

Family fleet, active

156

FAA registry

NTSB events / 1,000, 10 yrs

64.1

10 events over 156 active aircraft, pooled across the family

Data as of: FAA registry Sep 28 · NTSB Oct 2 · scores Sep 30