![](https://www.popsci.com/wp-content/uploads/2019/03/18/VIYMRNFCR53KYIEOYZI466P3BE.jpg?w=600)
![](https://www.popsci.com/wp-content/uploads/2019/03/18/VIYMRNFCR53KYIEOYZI466P3BE.jpg?w=600)
![httpswww.popsci.comsitespopsci.comfilesimages201602actuv.cropjpg.jpg](https://www.popsci.com/wp-content/uploads/2019/03/18/VTIGHKOUWZ4N2EJHYSIOU6KAVQ.jpg?strip=all&quality=95)
Naval battles of the future will be gray, wet, and lacking in humans. DARPA, the Pentagon’s far-future projects wing, mentioned last week that it plans to test its completely unmanned, 132-foot-long submarine tracker ACTUV in the waters off Portland, Oregon later this spring. Today, we got a first glimpse over the vessel itself, from DARPA’s Twitter and Instagram accounts.
Let’s take a look at ACTUV, short for “ASW Continuous Trail Unmanned Vessel,” throughout its development from concept to reality.
![Rough ACTUV submarine tracker Concept Art](https://www.popsci.com/wp-content/uploads/2019/03/18/B3JEOVTSGAVVOMZ3FF72ZJUXMQ.jpg?strip=all&quality=95)
![Video Still, ACTUV at a dock Concept Art](https://www.popsci.com/wp-content/uploads/2019/03/18/R4DGDB6XFEQIJK3Y5JUHC4CZJA.jpg?strip=all&quality=95)
![ACTUV at sea High Quality Concept Art](https://www.popsci.com/wp-content/uploads/2019/03/18/NRI7GVGN2J6QQYKLNC4N2KCJDI.jpg?strip=all&quality=95)
![ACTUV On Wheels at a parking lot on a rainy day](https://www.popsci.com/wp-content/uploads/2019/03/18/P27OD7GUWZYQWKS5S2JAW7B7ME.jpg?strip=all&quality=95)
![Backside view of the ACTUV Sea Hunter in a hangar with a technician](https://www.popsci.com/wp-content/uploads/2019/03/18/VXLN3RGCXFU5QAAGQFCCOKTVT4.jpg?strip=all&quality=95)
![Prototype of the ACTUV In The Water](https://www.popsci.com/wp-content/uploads/2019/03/18/6YNRZCVC6LPSSZKTABGGLLRKTI.jpg?strip=all&quality=95)
![Frontside view of the ACTUV's Pointy Wet Nose in the water](https://www.popsci.com/wp-content/uploads/2019/03/18/RI6DJNOAHGOMWSB6NJSA3SDE6M.jpg?strip=all&quality=95)