Lockheed Martin to launch new mid-sized satellite bus for tech demo in 2025

Lockheed Martin is gearing up to launch a demonstration mission for its new LM 400 — a common, mid-sized satellite bus that the company plans to use in future bids for Defense Department contracts.

The bus will be launched into low-Earth orbit (LEO) onboard a Firefly Aerospace Alpha rocket in the first half of 2025, Jeff Schrader, Lockheed Martin Space’s vice president of strategy and business development, told reporters Wednesday. Although it will carry a communications payload, the intent for the self-funded mission is “to show that we’ve built a system, the [technology readiness level] has been burned down, how long we can actually plan to be able to build those in the future to offer to our customers,” Scharder said.

For decades, the Pentagon has used a small number of large, exquisite satellite buses for its space missions that have become increasingly more costly and time-consuming to build. As demand for space-based warfighting capabilities continues to grow, the department has shifted its strategy and is now focused on buying smaller, less expensive satellites in larger numbers — such as those acquired for the Space Development Agency’s Proliferated Warfighter Space Architecture (PWSA).

Schrader said Lockheed Martin developed the LM 400 over the last three years to serve as a “middle ground” between the two options, allowing customers to carry additional power and payloads than smaller satellites while still keeping price tags low.

“For our tracking layer bids, we’ve had to use certain class buses for smaller [electro-optical/infrared] sensors,” Schrader explained. “This allows us to actually maybe grow that a little bit to get more coverage for EO/IR type of missions for missile warning [and] missile tracking.”

The satellite bus is also customizable to support different missions — including remote sensing, communications, imagery and radar — as well as orbits and launch configurations, according to the company.

As a common bus, the LM 400 is “going to have a significant amount of componentry that is exactly alike, no matter who the customer is,” Schrader said. “That allows us to go out to our supply chain, be able to cut long-term agreements with them and be able to put something in a shorter amount of build time, as well as get after a more proliferated approach.”

Development of the LM 400 was driven by Ignite, Lockheed Martin’s self-funded innovation unit that conducts experiments both on- and off-orbit as a way to accelerate space technology for potential government customers. The company’s Pony Express 2 tactical satcom and TacSat space-based 5G missions were also conducted under Ignite.

But LM 400’s demonstration is also being done in partnership with Lockheed Martin’s business needs as the company looks to better position itself to use the bus in future bids on government programs. That includes the Space Force’s medium-Earth orbit (MEO) missile warning and tracking constellation, as well as other classified programs for the Defense Department, the intelligence community and international partners, Schrader said.

“This will be ready as soon as we can get contracts for fielding,” he said.