This Skylark was built in 1959. The Cessna 175 filled a niche between the Cessna 172 and 182 and the Skylark is often confused with early 172s. The fact is that many airframe parts are interchangeable but the 175 has it's own type certificate. The main difference is the Continental O-300 engine in the 175 had a geared drive train for the propeller producing 35 hp more. The engine had poor reliability when pilots ignored operating instructions for the geared engine causing overheating and vibration.