NASA and SpaceX Disagree Over Manual Controls for Lunar Lander

NASA and SpaceX Disagree Over Manual Controls for Lunar Lander

NASA’s inspector general released a new report on Tuesday examining the space agency’s management of the Human Landing System development contracts signed with SpaceX and Blue Origin. While the fixed-price contracting approach has generally been effective, the report reveals a significant disagreement between NASA and SpaceX over manual control requirements for the Starship lunar lander .


Quick Overview

DetailInformation
Report SourceNASA Office of Inspector General
Key DisagreementManual control requirements for Starship lunar lander
NASA’s PositionAstronauts need manual control capability during lunar descent
SpaceX’s ApproachQuestioned by NASA as potentially insufficient
Risk Trend“Worsening trend” in manual control risk per NASA tracking
Historical ContextApollo astronauts used manual backup on every landing
Decision PointCritical Design Review approaching; issue unresolved

The Core Disagreement

What the Report Says

“There is disagreement between NASA and SpaceX on whether the provider’s current proposed approach for landing meets the intent of the Agency’s manual control requirement.”

The inspector general’s report notes that despite SpaceX’s acknowledgment and commitment to meeting the requirement, NASA’s tracking indicates a “worsening trend” in manual control risk .

Why Manual Control Matters

During every Apollo program crewed lunar landing, astronauts engaged backup manual control methods. While Apollo flew six decades ago with far less sophisticated software, NASA maintains that crew override capability remains essential for safety .

The report emphasizes:

“Incorporating this system capability is a key element of HLS’s human-rating certification and part of an essential crew survival strategy.”

The Starship Challenge

Unlike Crew Dragon, which had extensive flight heritage from cargo missions before carrying humans, Starship will not have the same level of proven flight experience in its actual operating environment before crewed lunar missions .


Historical Parallel: The Dragon Debate

A Familiar Fight

NASA and SpaceX engaged in a similar debate during Crew Dragon development a decade ago:

  • SpaceX initially wanted touchscreens only, with limited manual command capability
  • NASA pushed for traditional joysticks allowing manual flight like previous spacecraft
  • The compromise: Astronauts can manually fly using controls on touchscreens

That compromise was brokered by former NASA astronaut Garret Reisman, who was working at SpaceX .


Current Status

Key Decision Point Approaching

NASA and SpaceX are nearing a Critical Design Review for the lunar lander. The manual control issue remains unresolved, and the report suggests this may result in automation being the only landing method .

Blue Origin’s Status

A design for Blue Origin’s manual control system has not yet been made, according to the inspector general .


Other Findings in the Report

Uncrewed Demonstration Flights

Both SpaceX and Blue Origin are required to fly uncrewed demonstration missions before human flights. Key limitations noted:

  • Will not require life support systems and airlocks (unlike human missions)
  • Starship will not be required to test its elevator for bringing crew to the surface
  • Limited ability to test lunar dust impact on equipment

Contract Approach Assessment

Overall, the inspector general found NASA’s fixed-price contracting approach beneficial:

“We found that the Agency’s contract approach has been effective at controlling costs and provided the HLS Program with insight into SpaceX’s and Blue Origin’s development of their lunar landers.”

Both providers have utilized NASA’s subject matter expertise and unique capabilities to advance their lander development .


Key Details at a Glance

AspectStatus
Manual Control AgreementNot reached; NASA tracking “worsening trend”
Apollo PrecedentManual backup used on every landing
Dragon PrecedentCompromise reached after similar debate
Critical Design ReviewApproaching with issue unresolved
Blue Origin StatusManual control design not yet made
Demo Flight LimitationsNo life support, no elevator test, limited dust assessment

What’s at Stake

If the disagreement isn’t resolved, Starship’s lunar landings could rely solely on automation, with no crew override capability. NASA’s human-rating certification requires manual control as an essential survival strategy—meaning this issue must be addressed before astronauts can fly .

Leave a Reply

Your email address will not be published. Required fields are marked *