DISCLAIMER: THE TEXT BELOW WAS GENERATED BY DEEPSEEK AND EDITED BY A HUMAN

A high-performance 40mm PC fan produces over 1 pound of thrust (at 16 volts). It is an unregulated electric air propulsion unit sold as a PC part. Those fans are dual-stage Counter-Rotating Rotor (CRR) designs. Think of it as 2 small and really fast fans literally plastic-welded into one, but the front fan spins clockwise while the rear spins counterclockwise. They are used in 1U enterprise rack servers to cool high-power components, such as CPUs, RAM, voltage regulators, GPUs, high-speed Ethernet cards and high-speed external storage interface cards. It's noisy, often fails more frequently than larger single-stage fans and can fire carnage if the blades fail from fatigue. The root cause? The 19-inch rack standard. Designed in the 1890s for electronics in railway relay racks and standardized in 1922 by AT&T, it forces the industry to use tiny and ultra-high RPM fans to cool modern 1U and 2U servers, each containing over 500W of heat and beyond in datacenters. The 19-inch rack standard make large data center workers face almost as much noise as the ramp workers at the Los Angeles airport in 2002. It limits overall thermal capacity of modern servers, blade server enclosures and multi-node server enclosures. It is miserable for the 21st century in almost every way when measurements in most computer standards switched to metric units.

However, there is something darker. When most 1U server fans are used outside of servers, they become electric propulsion systems. With a thrust-to-weight ratio exceeding 4:1, a pair of fans from a 1U server can power a small RC jet or an RC replica of a 1970s Boeing 737. Four or eight of them can power a GPS-guided autonomous mini replica of a Boeing 707, Douglas DC-8 or B-52, capable of taking down regional jets and narrow-body planes, bombing a medium-sized building, bombing a skyscraper (although not nearly as big as 9/11) or bombing a small warehouse with explosive payloads. Now, there are 80mm CRR server fans shipping right now in 2U GPU servers. 2 of them can power a mini A319 or Boeing 737-700, with realistic aerodynamics downscaled from the real thing, and flying as high and as fast as turboprops. A determined attacker can build that with solid-state batteries, add a few quarts (or litres) of gas as their detonation payload, and fly it autonomously with onboard AI to target a building, event or a real commercial jet. A miniature Airbus A319 or Boeing 737 powered by 80mm CRR server fans scaled to their real CFM56 engine size containing a 1-gal (3.78 l) gasoline (petrol), jet fuel or butane payload ignited on impact can create a fraction of the damage caused by American 77 in 9/11. Now, there are 48V CRR fans shipping right now in servers, and they can produce over 2 lbf (8.8 N) of thrust, which is enough for a miniature A319 with 30% more payload or range, or even a miniature fully functional A320. This is not "science fiction". The knowledge is already public. The components are already in circulation. The regulatory gap is already open.

We call on the United States Consumer Product Safety Commission (CPSC), the United States Federal Trade Commission (FTC), the United States General Services Administration (GSA), the Open Compute Project (OCP), the International Organization for Standardization (ISO), the United States Congress and respective local authorities in all countries to:

• Mandate new rack standards. Adopt a new metric rack standard (50cm width, 5cm height for 1 metric-U) and/or the OCP Open Rack standard for all new federal data centers and IT procurement. It allows larger and quieter fans in servers, such as 50mm fans in a 1 metric-U server instead of 38mm ultra-high-performance fans in 1U servers to dissipate over 700 watts of heat, and 98mm single-stage fans instead of 80mm fans in 2 metric-U servers to cool 1800W of heat. It allows faster heat dissipation with less jet noise and static pressure in air-cooled 1 metric-U and 2 metric-U servers - making server fans in metric-U servers last much longer. It allows slightly higher TDP CPUs or higher-capacity registered ECC RAM modules in 1 metric-U servers.
• Redefine "propulsion device" for computer and consumer fans used outside of their context. Any fan below 180mm in diameter producing 1/2 pounds force (0.5 lbf; 2.2 N) of thrust/forward force or higher in open air outside of an enclosure shall legally be considered an air propulsion device. In other words, very powerful and loud fans smaller than 180mm are considered high-power Electric Ducted Fans (EDFs) or electric jet engines. 
• Regulate sales of ultra-high-performance fans smaller than 180mm in diameter. Electric air propulsion devices, or jet engines cannot be sold as "computer parts" or "fans" due to them being very similar to EDFs that the RC airplane community loves. Portable fans such as the JisuLife Ultra1, GOODJODOQ GFS009 and the X3 portable turbojet sold online contain iron high-static-pressure EDFs that are easily over-sped and over-volt-ed without impacting reliability considerably, making them great fans to be parted out and used to power small RC aircraft. Sales of ultra-high-performance portable fans over 20,000 RPM powered by iron, aluminium and titanium EDF motors, where the fan blades, motor and speed controller are coupled tightly in a single module, must be restricted to 2 units/month for an individual. All regulated fans must bear a unique serial number. Sales must be reported to a central database accessible to law enforcement. Bulk purchases (more than 2 units per month) require a valid license, and importers must certify end‑use. They make small aircraft lighter than 55 lbs (~24.94 kg) capable of flying over 25 knots (~28.76 mph; 46.3 km/h) of true airspeed while carrying over 1 pound (440 grams) of payload under US$10000 unviable without a jet turbine or aircraft manufacturing license. The only other way to make a fast RC jet is to buy a real jet engine designed for RC aircraft.
• Cap fan speeds. No fan in PCs, laptops, desktops and servers shall exceed 8,000 RPM. No mass-produced handheld fan and cooling fan shall exceed 20,000 RPM without local authority regulations.
• Exempt high-performance compact fans sold directly to consumers. Handheld fans (such as those from JisuLife and others, like the JisuLife Pro1S) are exempt. This petition only targets weaponizable consumer products and parts.
• Regulate high‑capacity solid‑state, Li-ion and Na-ion batteries above 100Wh as propulsion components and bulk energy storage equipment. Airlines already ban Li-ion batteries over 100Wh in carry-on luggage and cabins to prevent sudden explosions and in-flight fires that can take down a flight during cruise. Solid‑state batteries will soon pack 100Wh into an iPad Pro chassis while making it lighter than with Li-ion batteries, which is enough to fly a scale airliner for over 500 miles (~804 km) with multiple pounds or kilograms of payload, since solid-state batteries are projected to have the highest energy density and efficiency by weight. Mandate serial numbers, sales tracking and end‑user verification on high-capacity batteries to prevent their use in weaponized aircraft.

Why did I start this? I am 15 years old. I work on computers, write code, and pay attention to how things work. When I discovered that some server fans produce over 1 pound of thrust, I realized something, or multiple things, were wrong.

I am not petitioning to ban your handheld fan. I am not attacking the RC plane community. I am targeting weaponizable PC parts that threaten us all.

Act now. The next 9/11 will not be from a Boeing. It will be from a carbon-fiber RC jet powered by loud and small fans sold as server parts or portable fans, built from blueprints available online, programmed with open-source software, and aimed at a target we should have protected. If we do not regulate ultra-high‑density batteries as propulsion components, the next 9/11 will be electric.

We can act now, or we can act after a tragedy.

Resources and Videos for OCP Open Rack:

• Open Compute Project video: https://www.youtube.com/watch?v=A527jII5980
• MSI server video: https://www.youtube.com/watch?v=W66ipUZF6fk
• Ingrasys air-assisted water-cooled ORv3 server rack video: https://www.youtube.com/watch?v=XA01MzxpPwo

Fans over 1/2 lbf are jet engines. 180mm is the line. Sign this petition. Now.