Access to Space

Air force and space force assets in the air and atmosphere

Supporting the Air and Space Forces

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Launch Vehicle Propulsion

L3Harris propulsion systems are featured on the launch vehicles that carry the nation’s most important payloads into space, from missile warning satellites to classified intelligence payloads to constellations of small satellites for national security. We supply upper-stage engines for ULA’s Vulcan Centaur and Atlas V launch vehicles, as well as main and upper stage engines for NASA’s Space Launch System. We are also developing a new family of engines, Bantam, to lower the cost of space access by maximizing the use of 3D printing and reducing complexity while maintaining reusability and reliability.

Featured Access to Space Capabilities

RS-25 Engine

Powering Deep Space Exploration

RL10 Engine

Bantam

See How L3Harris is supporting the Artemis Missions

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Launch Avionics

L3Harris’ family of launch avionics products provide quality, value and reliability to a variety of launch vehicles. Since 1953, L3Harris has designed, developed and manufactured avionic solutions, contributing to launch vehicle success for demanding space missions. Specifically designed and qualified for use on launch vehicles and spacecraft, this highly reliable electronic equipment improves performance and controls costs. Ever-changing and increasing complex mission requirements demand high-performance, technologically advanced and low-cost solutions backed by a history of highly reliable launches. The expanded avionics suite includes communications, range safety receivers, power distribution and control, data acquisition, flight computers and navigation.

L3Harris’ Spaceflight Avionics Enables Critical Launch Performance for United Launch Alliance’s New Rocket Vulcan

Spacecraft Communications

L3Harris’ proven spacecraft communications technology enables secure transmission of data, video, audio and telemetry and accommodates many mission scenarios where data links are required between two spacecraft. L3Harris’ offers a variety of space communication transmitters and transceivers in multiple bands. Spacecraft communications is an essential part of every spacecraft. It is required to transmit important health and telemetry data down to Earth and to receive command and mission information from the ground stations.

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An illustration of NASA's Perseverance rover landing safely on Mars. CREDIT: NASA

All Access to Space Capabilities

Additive Manufacturing

Advanced Electro-Optical System R&D and Sustainment for Space Domain Awareness

Advanced Radar Solutions For Space Domain Awareness

AES/GCM Encryption Unit (AGU)

Agile Guardian

Autonomous Flight Termination Unit (AFTU)

Autonomous Flight Termination Unit - Miniature (AFTU-M)

Bantam

C/TT-600 Software-Defined Radio

Counter Communications System

CST-100 Starliner

Eclipse 500

AF-M315E, specially-engineered propulsion system for the “green” propellant

Green Propulsion

Hosted Payload Interface Unit (HPIU)

Launch Vehicle Avionics

M-Code Navigation Solutions

M-Code Type I

M-Code Type II

Medium Rate Advanced Encryption Standard (AES) Unit (KI-700)

Mission Planning Tool

NASA Orion Audio System

NTS-3

Nuclear Propulsion

Olympus

Orion

Protected Global Positioning System

RL10 Engine

Rocket Shop℠ Defense Advanced Programs

RS-25 Engine

Secure Satellite Communications Encryption Unit (CDU-200)

Secure Satellite Communications Encryption Unit (MCU-110C)

Aerojet Rocketdyne’s Advanced Electric Propulsion System

Solar Electric Propulsion

Solid Rocket Motors

Space and Intelligence Communications

Space BMC3

L3Harris is at the forefront of providing tools that enable and deny access to the electromagnetic spectrum in the contested space environment. Our capabilities protect U.S. forces and ensure any potential adversaries are at a disadvantage in the space domain.

Space Electronic Warfare

Space Superiority Sustainment

Spacecraft Communications

SpaceSentry Modular TCPED System

Spaceview™ Small Satellite Imaging Solutions

SPATIAL

T-740E S-Band Launch Vehicle Transmitter

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UnityCP® Application-Specific Integrated Circuit

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Related News

Press release | 03. 19. 2025

US Space Force Selects L3Harris to Continue Modernization of Space Domain Awareness Program ATLAS

L3Harris Technologies has received a $90 million follow-on, sole-source contract from U.S. Space Force Space Systems Command to further advance the nation’s Space Domain Awareness, a top Department of Defense priority.