What is the maximum vertical speed indicator (IVSI) setting to be considered as having a "stabilized approach"?

A "stabilized approach" is a key concept in aviation that ensures safely and efficiently landing an aircraft. The criteria typically include consistent and controlled parameters including speed, configuration, and vertical speed.

In many training guidelines, a vertical speed indicator (IVSI) setting of 1000 feet per minute (fpm) is frequently recognized as the maximum safe rate of descent to achieve a stabilized approach. This allows the pilot to maintain control and make adjustments as needed during the final approach phase, ensuring that they can react to any changes and maintain a steady glide path toward the runway.

Setting the vertical speed limit at this level reduces the risk of excessive descent rates that could lead to a loss of control or difficulty in executing a landing. It also aligns with best practices regarding safe landing speeds and approaches within various aircraft operation handbooks.

Other options, such as 500 fpm, 1500 fpm, and 2000 fpm, are not considered appropriate thresholds for a stabilized approach. The first is typically too conservative for most aircraft during final approach, while the latter two exceed the generally accepted safe vertical descent rate, heightening the risk of an unstabilized approach and potential landing complications.