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.
Geophysical Contractors 1225 North Loop West, Suite 220 Houston, Texas 77008 USA Email: bob.gisiner@iagc.org âimageâ of the underlying geology, in a way that is analogous to medical ultrasonic Sound and Marine Seismic Surveys Underwater sound has been used for over 50 years in marine geological research and exploration. Introduction Sound has been used as a tool for imaging geological structure on land and in wa-ter for more than 50 yrs (Figure 1). Compressed air sources, referred to as airguns,