Echo Ranger at the surface. Table 0-2 Echo Ranger Capabilities as an UDNS Mobile Node UDNS Key Requirement Full autonomous behavior Echo Ranger Capability Autonomous execution of high level mission plan Fault tolerant autonomy (redundant systems management) Kearfott INU, Teledyne DVL, Simrad altimeters, depth sensors Reset via Sonardyne ROVNAV LBL (as needed or as planned) Reset via Linkquest acoustic modem (as needed or as planned) Navigation error < 0.15% distance traveled (w/o resets) Large bottom payload bay (20" H by 50" W by 60" L, 977 lb dry, 158 lb wet) is well-suited to store other sensors and multiple self-deploying/self-connecting nodes with minimal modifications. Secondary battery pack can be replaced with up to 7.5 ft3 of additional payload, including extensible RF/ISR mast. Nose section can provide 1.5 ft3 payload area. High capacity power subsystem can provide up to 300 W @ 48 V to the payload. 10/100 Ethernet interface to vehicle controller and communication payload. Serial interface to Linkquest high-speed acoustic modem. NMH batteries: 42 KWH total (78 nm @ 3 kts) Li-Ion batteries: 136 KWH (252 nm @ 3 kts) Demonstrated over-the-side portable L&R on ship-of-opportunity. Also capable of stern ramp and pier-side L&R. Vehicle acoustic C2 using laptop PC and COTS acoustic modem. Built-in vehicle maintenance and diagnostics SW. PC-based mission planning, simulation capability, and analysis. Accurate internal navigation Communication and Sensor payload support Battery Endurance and Power Reliable launch, operation, and recovery 38 MTR May 2007
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