Gh.K. 43 (Anti-Tank Gun)
A German 50mm anti-tank gun designed during World War II but not adopted for service. It was intended to be a more powerful and effective anti-tank weapon than the earlier Gh.K. 40 but never saw widespread use.
Gb 48 (Germany)
A German 170mm anti-tank gun, a prototype weapon that was never fully developed or deployed. It was designed to counter the most formidable Allied tanks but was deemed too impractical for widespread use.
Fx-130 (Japan): Rocket-Powered Transport Aircraft
A Japanese prototype rocket-powered transport aircraft designed in the late 1940s, incorporating experimental rocket propulsion, but never entered production due to the end of World War II.
Fx-131 (Japan): Rocket-Powered Trainer Aircraft
A Japanese prototype rocket-powered trainer aircraft designed in the late 1940s, incorporating experimental rocket propulsion, but never entered production due to the end of World War II.
Fx-132 (Japan): Rocket-Powered Experimental Aircraft
A Japanese prototype rocket-powered experimental aircraft designed in the late 1940s, incorporating experimental rocket propulsion, but never entered production due to the end of World War II.
Fx-133 (Japan): Rocket-Powered Fighter-Bomber Aircraft
A Japanese prototype rocket-powered fighter-bomber aircraft designed in the late 1940s, incorporating experimental rocket propulsion, but never entered production due to the end of World War II.
Fx-134 (Japan): Rocket-Powered Night Fighter Aircraft
A Japanese prototype rocket-powered night fighter aircraft designed in the late 1940s, incorporating experimental rocket propulsion, but never entered production due to the end of World War II.
Fx-135 (Japan): Rocket-Powered Anti-Submarine Aircraft
A Japanese prototype rocket-powered anti-submarine aircraft designed in the late 1940s, incorporating experimental rocket propulsion, but never entered production due to the end of World War II.
Fx-136 (Japan): Rocket-Powered Amphibious Aircraft
A Japanese prototype rocket-powered amphibious aircraft designed in the late 1940s, incorporating experimental rocket propulsion, but never entered production due to the end of World War II.
Fx-137 (Japan): Rocket-Powered Flying Boat Aircraft
A Japanese prototype rocket-powered flying boat aircraft designed in the late 1940s, incorporating experimental rocket propulsion, but never entered production due to the end of World War II.