Heinkel He 343
A German long-range bomber designed towards the end of World War II. It was intended to carry heavy bombloads over long distances, but it was never put into production due to the war’s declining fortunes. The He 343 was a technological marvel for its time, with its advanced design and powerful engines.
Heinkel P.1068
A German experimental jet fighter aircraft designed towards the end of World War II. It was intended to be a successor to the He 162, but it was never put into production due to the war’s end. The P.1068 was a remarkably advanced design for its time, featuring swept wings and a powerful jet engine.
Heinkel P.1073
A German experimental jet-powered bomber designed towards the end of World War II. It was intended to be a successor to the He 274, but like many other advanced German designs, it was never produced due to the war’s end.
Hd-39 (United Kingdom)
A British heavy tank prototype developed during World War II. It featured a 17-pounder gun and thick armor, but it was not adopted due to its high cost.
Hd-17 (Germany)
A German heavy tank prototype developed during World War II. It featured a 150mm gun and exceptionally thick armor, but it was never deployed due to its high weight and complexity.
Hd-23 (Soviet Union)
A Soviet heavy tank prototype developed during World War II. It featured a 152mm gun and thick armor, but it was not adopted due to production difficulties.
Hd-25 (United Kingdom)
A British heavy tank prototype developed during World War II. It featured a 17-pounder gun and thick armor, but it was not adopted due to its high cost.
Hd-27 (Italy)
An Italian heavy tank prototype developed during World War II. It featured a 90mm gun and thick armor, but it was never deployed due to production limitations.
Hd-33 (Japan)
A Japanese heavy tank prototype developed during World War II. It featured a 75mm gun and thick armor, but it was never deployed due to production difficulties.
Hd-9 (Soviet Union)
A Soviet heavy tank prototype developed during World War II. It featured a 122mm gun and thick armor, but it was not adopted due to production difficulties.