Complex sentence: The I-14 was a single-seat low-wing monoplane designed by Kārlis Irbītis, with fixed, conventional landing gear, and was powered by a 200hp Menasco B6S Buccaneer.
Split into simpler sentences: The I-14 was a single-seat low-wing monoplane designed by Kārlis Irbītis. It had fixed, conventional landing gear, and was powered by a 200hp Menasco B6S Buccaneer.