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| Sentry | |
 | |
| Creator | Woods Hole Oceanographic Institution |
| Type | Scientific |
| Released | 2010 |
| Website | www.whoi.edu/main/sentry |
The autonomous underwater vehicle (AUV) Sentry is following in the wake of its predecessor, ABE, as a fully autonomous underwater vehicle capable of exploring the ocean down to 6,000 meters (19,685 feet) depth. Sentry builds on ABE's success with improved speed, range, and maneuverability. Sentry's hydrodynamic shape also allows faster ascents and descents.