3 engined heavy transport... held the distinction of being the most powerful helicopter to be built in Europe at one point, as well as being the world's fastest helicopter. Wikipedia
4 engine medium-range transport aircraft, and the first aircraft to take flight powered only by propfan engines.... replacement for the An-12 - Wikipedia
The Messerschmitt Me 323 Gigant was a German military transport aircraft of World War II. It was a powered variant of the Me 321 military glider and was the largest land-based transport aircraft to fly during the war. In total, 213 were made, with 15 being converted from the Me 321. Wikipedia