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INDEPENDENT PERSPECTIVE
THE EVOLVING FIELD GUIDE
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DEFENCE DRONES / THE LIBRARY

Compare the evidence.

Choose up to three systems. Specifications retain their source and configuration; missing information is left undisclosed.

L3Harris Iver4 900

A modular, nine-inch-class AUV selected for a US submarine launch-and-recovery development programme.

Country / region
United States
Programme status
Order / production commitment
Sources reviewed
21 Sept 2026
Order / production commitmentOrder / production commitment
Primary domain
Underwater
System type
Autonomous underwater vehicle
Developer / manufacturer
L3Harris
Origin / production countries
United States
Other names
Iver4 900 AUV
Variants / configurations
Not distinguished in reviewed sources
Operators / programme customers
United States — DIU submarine-capability procurement

Evidence & current status

Published product data does not establish acceptance of every offered configuration.

Role & capabilities

  • Underwater survey
  • Environmental assessment

Specifications in context

Configuration
Modular, untethered AUV

Published model baseline; payload, battery and conditions affect performance.

Source ↗
Hull / propulsion
Not established in the reviewed public sources.

Public evidence gap. No estimate or neighbouring variant value has been substituted.

Source ↗
Dimensions
Approximately 2.5 m long; 9 in diameter

Published model baseline; payload, battery and conditions affect performance.

Source ↗
Displacement / mass
Under 230 lb

November 2022 stated baseline; modules and payload affect delivered mass.

Source ↗
Payload
Not established in the reviewed public sources.

Public evidence gap. No estimate or neighbouring variant value has been substituted.

Source ↗
Endurance
20+ hours with 2 kWh NiMH; 40+ hours with 4 kWh lithium-ion

Manufacturer specification for the identified battery options, not a demonstrated guarantee for all payloads.

Source ↗
Range
Not established in the reviewed public sources.

Public evidence gap. No estimate or neighbouring variant value has been substituted.

Source ↗
Speed
Not established in the reviewed public sources.

Public evidence gap. No estimate or neighbouring variant value has been substituted.

Source ↗
Operating depth
300 m

Published model baseline; payload, battery and conditions affect performance.

Source ↗
Sensors
Not established in the reviewed public sources.

Public evidence gap. No estimate or neighbouring variant value has been substituted.

Source ↗
Communications / control
Not established in the reviewed public sources.

Public evidence gap. No estimate or neighbouring variant value has been substituted.

Source ↗
Launch / deployment
Not established in the reviewed public sources.

Public evidence gap. No estimate or neighbouring variant value has been substituted.

Source ↗