RTX carries a $289 billion backlog that skews heavily toward commercial aerospace, with a 60/40 split favoring commercial over defense work.
That split is not simply a reflection of strong demand from airlines and aircraft manufacturers rebuilding fleets after years of disruption.
The commercial aerospace strength is actively improving the quality and discipline of RTX’s defense business in ways that are easy to overlook.
Historically, commercial aerospace was viewed as a cyclical business prone to booms and busts, while defense was considered the steadier, more predictable revenue source for large industrial conglomerates.
The merger that created RTX, combining United Technologies’ heavy commercial aerospace operations with the defense-focused Raytheon Company, was built partly on the logic that each side would support the other through difficult periods.
That logic was tested when RTX faced a costly issue involving powder metal coating on the geared turbofan engine, and the defense business helped absorb the financial pressure during that challenging stretch.
Now the dynamic is working in the opposite direction, with a robust commercial backlog giving RTX the financial flexibility to be more selective about which defense contracts it pursues.
Peers including Boeing and Lockheed Martin have faced significant pressure to accept fixed-price development programs that have at times proven loss-making and technically demanding under harder government negotiating stances.
RTX demonstrated its willingness to walk away from unfavorable work when it terminated a fixed-price contract for a classified program with a foreign customer in 2024, absorbing a $575 million charge in the second quarter of that year.
CEO Chris Calio explained the decision plainly, saying the contract was “not within our core competency” and had been taken on before RTX’s formation as a combined company.
That $575 million charge, while not trivial, stands in contrast to the multibillion-dollar charges that have burdened some of RTX’s defense industry peers on complex fixed-price programs.
RTX has leaned toward less novel, more proven defense solutions such as Patriot missile systems, a strategy that reduces technical risk and supports more predictable program execution.
The commercial aerospace backlog provides the earnings and cash flow base that makes this disciplined posture sustainable rather than merely aspirational for the company.
A business that does not need to chase every defense contract to meet financial targets is better positioned to avoid the kinds of program disasters that have damaged competitors in recent years.
The 60/40 commercial-to-defense backlog split at RTX is ultimately less about sector exposure and more about the structural advantage that commercial strength provides across the entire enterprise.
