Please report any broken links or trouble you might come across to the Webmaster.
Please take a moment to let us know so that we can correct any problems and make your visit as enjoyable and as informative as possible.

NavSource Online: Submarine Photo Archive

Orca Extra Large Unmanned Undersea Vehicles (XLUUVs)

The Orca is based on the Echo Voyager technology demonstration sub. That boat is an unmanned diesel electric submarine launched and recovered from a pier. It has a range of 6,500 nautical miles and can run completely alone for months at a time. It measures 51 by 8.5 by 8.5 feet and has a weight “in the air” of 50 tons.
The sub features an inertial navigation system, depth sensors, and can surface to get a fix on its position via GPS. It uses satellite communications to “phone home” and report information or receive new orders. Echo Voyager can dive to a maximum depth of 11,000 feet and has a top speed of eight knots.
One crucial piece of Echo Voyager is the modular payload system that allows it to take on different payloads to support different missions. The unmanned sub has an internal cargo volume of 2,000 cubic feet with a maximum length of 34 feet and a capacity of eight tons. It can also support external payloads hanging off the hull.
Specifications: Weight: 50 Tons Length: 51 by 8.5 by 8.5 feet Beam: 10 Feet pods Propulsion: It has a range of 6,500 nautical miles and can run completely alone for months at a time Operating depth: N/A Crew: Unmanned
Click On Image
For Full Size Image
Size Image Description Source
Echo Voyager 270k Echo Voyager scale model on Boeing's stand at SNA 2019. While Echo Voyager and Orca XLUUV are not the same vehicle, lessons learned from Echo Voyager have been incorporated into Boeing's Orca design. Text & photos courtesy of Xavier Vavasseur via
Photo added 02/15/19.
Echo Voyager NR PDF of the Echo Voyager.
Photo added 02/15/19.
Echo Voyager 312k Slide from the “Unmanned Maritime Systems Update” by PEO USC / PMS 406 shown during SNA 2019.
Photo added 02/15/19.
Echo Voyager 357k Echo Voyager, the technology demonstrator that preceded Orca. Text & photos courtesy of Kyle Mizokami via
Photo added 02/15/19.
Echo Voyager 198k Boeing Echo Voyager is 15.5 meters in length (with a diamater of about 2.6 meters). Its range is 6,500 nautical miles and it can stay for “months” out at sea. It was designed to be fully autonomous and can accommodate both internal and external payloads. Boeing picture. Photo & text courtesy of
Photo added 02/15/19.

There is no DANFS History currently available for Orca (XLUUV) at the Haze Gray & Underway Web Site, the main archive for the DANFS Online Project.
Additional Resources and Web Sites of Interest

Back To The Main Photo Index Back To the Submarine Index
Problems and site related matters, E-mail Webmaster
This page is inspired by David Wright & created and maintained by Michael Mohl.
©1996 - 2019, NavSource History All rights reserved.