Defense momentum meets engine repair risk
- RTX has three main engines of the business: Collins Aerospace, Pratt & Whitney, and Raytheon.
- Q1 2026 net sales were $22.1 billion, up 10% organically, with growth across all three segments.
- Backlog reached a record $271 billion, split between $162 billion commercial and $109 billion defense.
- Raytheon is the brighter near-term driver after management raised its 2026 sales outlook to high single digit growth.
- The biggest watch item is still execution, especially the Pratt & Whitney GTF powder metal issue and the munitions supply chain ramp.
Raytheon lifts the story
RTX is in a better spot than it was a few quarters ago. The defense side is gaining speed, and the commercial aerospace aftermarket is still helping. In Q1 2026, adjusted sales were $22.1 billion, up 10% organically, and backlog rose to a record $271 billion.
The bull case starts with Raytheon. Management now expects Raytheon sales to grow at a high single digit rate in 2026. Five planned framework agreements for munitions like Tomahawk, AMRAAM, and the Standard Missile family could give suppliers a clearer demand signal for years.
The bear case is not about demand. It is about delivery. Pratt & Whitney still has the GTF powder metal problem, and RTX still expects about a $0.7 billion 2026 cash impact tied to that matter. The good news is that management said PW1100 aircraft on ground were down about 15% from year-end 2025, helped by a 23% year-over-year increase in MRO output.
The score is balanced because the setup is balanced. RTX has real demand, a huge backlog, and better defense momentum. It also has hard operating work ahead, from fixing engines to getting rocket motors, microelectronics, and other parts through the supply chain.
Long machines, long service tails
RTX makes complex aerospace and defense hardware. That includes aircraft systems, jet engines, radars, missiles, and missile defense equipment. These products can take years to design, qualify, and build.
The company earns money in two main ways. First, it sells original equipment, such as aircraft parts, engines, and defense systems. Second, it sells service, spare parts, and maintenance for equipment already in use. That installed base is important because an aircraft engine or defense system can need support for decades.
Commercial aerospace sales depend on airlines, aircraft production, and flying activity. Defense sales depend on government budgets, contract awards, export approvals, and program execution. In Q1 2026, RTX reported $15.8 billion of product sales and $6.3 billion of service sales.
This model can be powerful, but it can also be unforgiving. A defect in an engine part can ground aircraft and pull cash out of the business. A defense production ramp can stall if suppliers cannot raise output fast enough.
What RTX sells
Collins Aerospace systems
Collins sells avionics, aerostructures, interiors, and other systems for commercial and military aircraft. In Q1 2026, Collins grew organically as commercial OEM, commercial aftermarket, and defense sales all rose.
Pratt & Whitney engines
Pratt & Whitney designs and services aircraft engines for commercial and military users. The GTF engine family is central to the story, both as a long-term installed base and as the source of the powder metal issue.
Commercial engine aftermarket
Engine service is a key profit pool because engines need inspections, parts, and repair over many years. Pratt & Whitney commercial aftermarket sales rose 19% in Q1 2026.
Raytheon munitions
Raytheon makes critical missiles and munitions, including Tomahawk, AMRAAM, and the Standard Missile family. New framework agreements could support a larger and steadier production base if they become final contracts.
Air and missile defense
Raytheon sells systems tied to land and air defense, including Patriot-related programs. In Q1 2026, higher Patriot program sales were a major reason Raytheon grew.
Naval radars and defense electronics
Raytheon also sells advanced sensors and naval systems, including radar families such as SPY-6. These programs can benefit from higher defense budgets, but timing depends on awards and government priorities.
Three large pillars
Segment mix is based on Q1 2026 total segment net sales before eliminations: Collins $7.6 billion, Pratt & Whitney $8.2 billion, and Raytheon $6.9 billion. Raytheon uses a fiscal quarter end that differs slightly from Collins and Pratt & Whitney.
What could break the plan
GTF powder metal recovery slips
High impact · Medium oddsPratt & Whitney must inspect and repair affected PW1100 GTF engines. Management says the plan is on track, and aircraft on ground were down about 15% from year-end 2025. Still, RTX expects about a $0.7 billion cash impact in 2026, and delays could keep pressure on airlines and cash flow.
Munitions suppliers cannot ramp
High impact · Medium oddsRaytheon demand is strong, but demand does not equal shipments. Management said the munitions ramp needs a step change in supplier output. Rocket motors, microelectronics, and other constrained parts could cap growth if suppliers do not invest or deliver on time.
Raytheon margins fade as volume rises
Medium impact · Medium oddsRaytheon had a strong Q1 2026, with operating profit margin of 12.1% versus 10.7% a year earlier. The risk is that higher volume brings overtime, supplier premiums, or fixed-price cost overruns. If margins fall while sales rise, the defense bull case weakens.
Government and export approvals slow orders
Medium impact · Medium oddsDefense sales depend on budgets, awards, export licenses, and customer approvals. RTX also notes that foreign military and direct commercial sales can be delayed or blocked by government policy. That matters because defense backlog and bookings are a large part of the story.
Compliance issues remain a drag
Medium impact · Low oddsRTX operates under existing Consent and Deferred Prosecution Agreements tied to past legal and compliance matters. These do not define the current growth story, but they add oversight and headline risk. A breach or new investigation could hurt trust and distract management.
In one breath
What does RTX actually do?
RTX is an aerospace and defense company. Collins makes aircraft systems, Pratt & Whitney makes and services engines, and Raytheon makes defense systems such as missiles, radars, and missile defense equipment.
Why is Raytheon important to RTX now?
Raytheon is seeing strong demand for land and air defense systems, naval munitions, and missile programs. Management raised its 2026 Raytheon sales outlook to high single digit growth after a strong Q1.
What is the GTF powder metal issue?
Pratt & Whitney found a rare condition in powder metal used in some PW1100 GTF engine parts. That requires faster inspections and repairs, which can ground aircraft and create cash costs for RTX.
Is RTX mainly a defense stock or an aerospace stock?
It is both. In Q1 2026, RTX had $162 billion of commercial backlog and $109 billion of defense backlog, so the company is tied to airline activity and government defense spending at the same time.