Wright's 225 hp (168 kW) J-5 Whirlwind radial engine of 1925 was widely claimed as "the first truly reliable aircraft engine".[8] Wright employed Giuseppe Mario Bellanca to design an aircraft to showcase it, and the result was the Wright-Bellanca 1, or WB-1, which first flew later that year. The J-5 was used on many advanced aircraft of the day, including Charles Lindbergh's Spirit of St. Louis, in which he made the first solo trans-Atlantic flight.[9]