RTX embodies American ideals of industry and innovation.

With a trove of intellectual property including more than 60,000 patents, a domestic manufacturing footprint that measures in millions of square feet, and an enduring mission to protect and connect our world, RTX is building on its own legacy while helping the nation secure its future.

RTX advancements in U.S. history

It began with refrigeration, radio vacuum tubes and radial engines. Here's a look at some of the ways RTX businesses have contributed to the story of America.
Legendary Raytheon engineer Percy Spencer made it possible for manufacturers to mass-produce magnetrons, which allowed World War II-era radars to convert electricity into electromagnetic waves. With production increasing from 100 to 2,600 a day, the resulting radars helped give the Allies the edge in combat.
Pratt & Whitney Wasp engines on the original assembly line in Connecticut
The R-1340 Wasp A engine was Pratt & Whitney’s first, and it spawned a family of successors that was foundational to both commercial and military aviation. During World War II, those engines provided nearly 609 million horsepower – about half the power required by U.S. air forces.
US flag on moon with astronaut
The Apollo 11 lunar landing mission relied on the work of RTX’s legacy companies. Raytheon built the Apollo Guidance Computer, whose memory was made of handwoven copper wire, while Collins Radio developed the technology that allowed the Apollo 11 crew to communicate with mission control in Houston – including Neil Armstrong’s famous “one small step” transmission.
Close-up of a server rack featuring RTX BBN
BBN Technologies, now called RTX BBN Technologies, built the routers for ARPANET – the U.S. government network that laid the groundwork for the modern Internet.
The combat-proven Patriot is the world's most advanced air and missile defense system.
Raytheon’s Patriot® air and missile defense system proved what was once a radical concept: interception, or using defensive missiles to intercept incoming threats. After years of development, the system saw its first successful deployment in the Gulf War in 1991. An updated version intercepted a hypersonic missile near Kyiv, Ukraine, in 2023.
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The Pratt & Whitney GTF™ engine is a complex machine built on a simple premise: allowing the fan and the turbine, traditionally attached to the same shaft, to spin independently and at their optimal speeds. The result: historic fuel efficiency for single-aisle aircraft.

Celebrating America

As the country celebrates America’s 250th, RTX will be there. Whether it’s powering the mighty Air Force Thunderbirds with our Pratt & Whitney F100 engines, or celebrating the history of space exploration with our RTX Living in the Space Age Hall in the National Air and Space Museum, RTX and its employees will show up in service of our nation.

But the story doesn’t end there

RTX is building on those historic achievements with new technologies, ideas and approaches to meet its mission of connecting and protecting our world.