The Spartan C4 was an American four-seat cabin monoplane designed and built by the Spartan Aircraft Company.

[1] The first model was the C4-225 a high-wing braced monoplane powered by a 225 hp (168 kW) Wright J-6 radial engine.

[1] Only five C4-235 aircraft were built and they were followed by one C4-300 with a 300 hp (220 kW) Wright R-975 radial engine, and the C4-301 with a 300 hp (220 kW) Pratt & Whitney Wasp Junior.

[1] Data from Jane's all the World's Aircraft 1931[2]General characteristics Performance

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