For the reciprocating engine of an aircraft to optimally transfer power generated by the internal combustion engine to the propeller assembly, an apparatus known as the crankshaft is used. As an essential element of the power transmission system, crankshafts and their connecting rod convert the linear movement of a firing piston into rotational motion that is used to drive the propeller assembly. In this blog, we will discuss the design and functionality of the crankshaft, allowing you to better understand its use and importance in the realm of aviation.