To what altitude can the signal in the MK-79 kit be fired?

The MK-79 kit is designed to provide a signaling capability in marine environments, specifically for search and rescue operations. The signal can be fired to an altitude of 250 feet, which is effective for gaining the attention of search and rescue personnel in the vicinity.

The design of the MK-79 kit allows it to produce a visible signal that can be observed from a distance, and the specified altitude is optimal for ensuring visibility above obstacles, such as trees or terrain features. This capability is crucial for effective signaling, especially in emergency situations where ascent to higher altitudes may not be feasible or safe for personnel on the ground or in the water.

Other options suggest heights that are either higher or lower than the actual effective range of the kit; thus, they do not provide the same level of reliability in a signaling context as the 250-foot altitude. The 250-foot altitude represents a balance between effective visibility and safety in deployment.