Includes: 1: A Martin drawing showing the complete vehicle sans payload section, with inboard view of the first and second stages and transstage. 18067 x 4577 pixels. 2: Martin layout drawing of the core vehicle with numerous cross-sections. 22962 x 4332 pixels 3: United Aircraft drawing 4A0020, Rocket Motor - Flight Configuration.
NOAA scientists primarily use sonar to develop nautical charts, locate underwater hazards to navigation, search for and map objects on the sea floor such as shipwrecks, and map the sea floor itself. There are two types of sonarâactive and passive.
Electronic sonar systems are used for submarine navigation and for detecting schools of fish. Some mammals, especially bats, use biological sonar to navigate and detect prey in dark conditions, commonly called echolocation. The equipment or physiology used in doing this. See also Doppler effect, lidar, radar.