Project Mayhem: The Dawn of Hypersonic Dominance

Christian Baghai
3 min readSep 1, 2023

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In an era where technological advancements are reshaping the very fabric of our existence, the realm of military aviation is not left untouched. The quest for supremacy in the skies has led to the birth of a groundbreaking initiative: Project Mayhem. This project, spearheaded by the U.S. Air Force Research Laboratory, aims to redefine the boundaries of speed, power, and flexibility in aviation.

Imagine an aircraft that marries the raw power of a ballistic missile with the agility of a turbojet, capable of precision bombing any target on Earth from a staggering range of over 10,000 miles in just over an hour. This isn’t a figment of science fiction; it’s the vision behind Project Mayhem. The goal? To construct an aircraft engine that possesses the ferocity of a rocket and the adaptability of a turbojet, paving the way for a Mach 10 plane. To put this in perspective, such an aircraft could traverse the distance between New York and London in under 30 minutes.

However, to merely label hypersonic speeds (those exceeding Mach 6) as “fast” would be an understatement. When an aircraft surpasses the speed of sound by such a margin, the surrounding air transforms into a dense, superheated fluid. The aircraft then starts behaving less like a conventional plane and more like a meteor, perpetually teetering on the brink of disintegration. This was evident when pilot Branchal pushed his SR-71 beyond Mach 3.5 in 1986, momentarily becoming the fastest pilot on Earth. The sheer velocity caused the airframe to heat up to 400 degrees Celsius, turning the cockpit’s glass as hot as an electric stovetop.

Historically, achieving speeds of Mach 10 with a self-powered vehicle was deemed unattainable. The challenges were twofold: generating sufficient thrust and combating the intense heat from air friction, which could melt even titanium. Enter Lockheed Martin with their ambitious SR-72, dubbed the “Son of Blackbird”. This marvel of engineering is expected to be shielded by NASA-pioneered materials made from carbon, ceramic, and metal composites, all powered by a revolutionary engine design birthed from Project Mayhem.

This engine, known as the turbine-based combined cycle (TBCC), is a game-changer. It functions as a turbojet at lower speeds and transitions to a scramjet at supersonic and hypersonic velocities. This dual nature allows the SR-72 to operate like a stealth bomber at lower altitudes and speeds, and then soar into the upper atmosphere, leveraging reduced wind resistance to achieve staggering speeds.

The brilliance of the TBCC engine lies in its ability to switch between a traditional jet engine and a scramjet seamlessly. This adaptability ensures that the aircraft can not only reach its target swiftly but also hover over it, potentially even slowing down for refueling before accelerating back to hypersonic speeds.

However, the challenges of designing such an engine are monumental. Engineers are tasked with creating an engine that can alter its thrust source mid-flight, all while maintaining a minimal radar footprint. The specifics of the technological innovations required remain a closely guarded secret, known only to Lockheed and the Pentagon. Yet, the Project Mayhem engine is on track to debut in the SR-72 by 2025.

The strategic importance of such advancements cannot be overstated. As potential adversaries like Russia and China rapidly modernize their naval and air forces, the U.S. must stay ahead of the curve. The emergence of machine vision-driven self-guiding missiles and ground-to-air defense systems capable of reaching Mach 5 and above necessitates a new breed of aircraft that can outpace and outmaneuver these threats.

Project Mayhem, with its focus on hypersonic technology, is a testament to the U.S. Air Force’s commitment to maintaining air superiority. The SR-72, powered by the revolutionary TBCC engine, represents the future of military aviation — a harmonious blend of speed and stealth that promises to redefine the boundaries of aerial warfare.

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Christian Baghai
Christian Baghai

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