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Boston Dynamics

LS3 (Legged Squad Support System)

A quadruped robot from the United States, first released 2012.

Sources retrieved: 4 September 2026 (A)

Status
Discontinued
Applications
Defence and emergency responseLogistics
Indicative price
Not stated
Intended use, per the manufacturer
LS3 seeks to demonstrate that a highly mobile, semi-autonomous legged robot can carry 400 pounds of a squad's load, follow squad members through rugged terrain and interact with troops in a natural way.

50100200 cm2040152.460
Boston Dynamics LS3 Legged Squad Support System rough-terrain robot
  1. Person
    175 cm68.9 in
  2. 228.6 cm90 inHeight
    152.4 cm60 in

Manufacturer's own photo.

Drawn at one scale next to a 175 cm person, from the figures the maker states: height 152.4 cm and length 228.6 cm.Drawn at one scale next to a 68.9 in person, from the figures the maker states, converted to inches: height 60 in and length 90 in.

Specifications

8/33 specifications disclosed 25 not stated

Not statedThe manufacturer states nothing about this field.NoStated: the robot does not have this.A marker with an asterisk (*) also carries a caveat.

Select a source marker for source details and notes.

Physical6/14 disclosed

Weight362kg798lbOur conversion from 362 kg. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.
Length228.6cm90inOur conversion from 2286 mm. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.
Width76.2cm30inOur conversion from 762 mm. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.
Height152.4cm60inOur conversion from 1524 mm. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.
Degrees of freedomNot stated
Payload, walking181kg399lbOur conversion from 181 kg. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.
Payload, standingNot stated
Max speed11.16km/h6.93mphOur conversion from 3.1 m/s. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.
Max slopeNot stated
Max obstacle heightNot stated
Max stair height, continuousNot stated
IP ratingNot stated
Operating temperature, lowNot stated
Operating temperature, highNot stated

Power0/5 disclosed

BatteryNot stated
RuntimeNot stated
Hot-swap batteryNot stated
Charge timeNot stated
Docking stationNot stated

Sensing and autonomy2/6 disclosed

LiDARStereo vision and LiDAR suite for obstacle avoidance and terrain mapping
CamerasNot stated
Onboard computeNot stated
ROS 2Not stated
SDK languagesNot stated
Autonomy featuresSemi-autonomous navigation with leader-follower tight, leader-follower corridor, and go-to-waypoint modes

Payload and expansion0/3 disclosed

Mounting interfaceNot stated
Power outNot stated
Data portsNot stated

Commercial0/1 disclosed

Indicative priceNot stated

Compliance & certifications0/4 disclosed

CENot stated
FCCNot stated
ULNot stated
CCCNot stated

Against the field

Each strip holds every robot of this type in the guide that states the figure, one bar per group of values. Further right means a larger figure, not a better robot.

Height

152.4cm60inOur conversion from 1524 mm. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.

89 quadrupeds state a height

LS3 (Legged Squad Support System)

0 state a higher figure, 88 a lower one.

Weight

362kg798lbOur conversion from 362 kg. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.

124 quadrupeds state a weight

LS3 (Legged Squad Support System)

0 state a higher figure, 123 a lower one. Log scale: each step along the axis multiplies the value.

Max speed

11.16km/h6.93mphOur conversion from 3.1 m/s. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.

113 quadrupeds state a top speed

LS3 (Legged Squad Support System)

43 state a higher figure, 50 a lower one.

Notes

An autonomous military pack-mule quadruped built by Boston Dynamics for DARPA and the U.S. Marine Corps.

Built to cross rugged terrain over a 20-mile mission range while recharging power for a squad's electronic devices.

Sources

One line per source, not per figure: a source has one retrieval date.

  1. Adarpa.mil/research/programs/legged-squad-support-systemSecondary. Retrieved 4 September 2026

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