Some airplanes do not have jump seats in the cockpit, while others have one or two. In most airliners, the observers' seats have an audio selector panel so that the observer can monitor or participate in flight communications. An oxygen mask is provided for each station.
Some aircraft lack jump seats in the cockpit, while others have one or two. In most commercial airliners, observer's seats feature an audio selector panel to enable observers to monitor or engage with flight communications. Each station is equipped with an oxygen mask.