The first aircraft was the pictured Model 57 Teal A-1, which was a three-seater powered with the 165 hp Wright J-6-5 Whirlwind engine and flew in March 1930. The J-6-5 was an inadequate power plant and the A-1 was quickly modified to use the 225 hp J-6-7 and underwent modification to increase its wing area. Unfortunately, the increased weight nullified most of the performance gains.
The second aircraft (c/n G-2), designated Model 57 Teal B-1 and registered 970V) was a four-seater powered with the 225 hp Wright J-6-7."