What is the product of the arm and weight referred to as?

The product of the arm and weight is referred to as a moment. In aviation and engineering, a moment is a measure of the tendency of a force to cause rotation about a specific point or axis. The "arm" refers to the distance from the point of rotation to where the weight is acting, and when this distance is multiplied by the weight (force), it results in the moment.

Understanding this concept is crucial in various applications, such as calculating stability and balancing aircraft. By knowing the moment, engineers and pilots can determine whether an aircraft is in equilibrium or if adjustments are needed to maintain or change its orientation in flight. This principle is also fundamental in weight and balance calculations, affecting performance and safety considerations in aviation.