Stealth technology
In Britain, BAE Systems has tested two fluidically controlled unmanned aircraft, one starting in 2010 named Demon, and another starting in 2017 named MAGMA, with the University of Manchester. In the United States, the Defense Advanced Research Projects Agency (DARPA) program named Control of Revolutionary Aircraft with Novel Effectors (CRANE) seeks "... to design, build, and flight test a novel X-plane that incorporates active flow control (AFC) as a primary design consideration. ... In 2023, the aircraft received its official designation as X-65." In January 2024, construction began, at Boeing subsidiary Aurora Flight Sciences. According to DARPA, the Aurora X-65 could be completed and unveiled as soon as early 2025, with the first flight occurring in summer 2025.
In circulation control, near the trailing edges of wings, aircraft flight control systems are replaced by slots which emit fluid flows.

List of stealth aircraft: F-117 Nighthawk
B-2 Spirit
F-22 Raptor
F-35 Lightning II
J-20
Su-57
B-21 Raider
FC-31
SU-75 Checkmate

List of reduced-signature ships: Navy ships worldwide have incorporated signature-reduction features, mostly for the purpose of reducing anti-ship missile detection range and enhancing countermeasure effectiveness rather than actual detection avoidance. Such ships include:

Bhumibol Adulyadej-class frigate
Independence-class littoral combat ship
Kamorta-class corvette
Kolkata-class destroyer
Klewang-class fast attack craft
Nilgiri-class frigate (2019)
La Fayette-class frigate
Visby-class corvette
Skjold-class corvette
Tuo Chiang-class Stealth Corvette
Sachsen-class frigate
Shivalik-class frigate
Talwar-class frigate
Type 055 destroyer
Visakhapatnam-class destroyer
Zumwalt-class destroyer

List of stealth helicopters: Boeing–Sikorsky RAH-66 Comanche
Hughes 500P

See also: Active camouflage
Multi-spectral camouflage
Cloaking device
Penetration aid
Pyotr Ufimtsev – Soviet-Russian physicist who created much of the original theory behind radar stealth

References: 

Bibliography: 

External links: 
Stealth design used for military aircraft?
A Stealth Satellite Sourcebook
Stealth in strike warfare
Stealth technology
The Paradigm Shift in Air Superiority (Stealth)