Mil Mi-30

The Mil Mi-30 (also known as the Vintoplan) is an experimental Russian plane/helicopter that originated in 1972. The Mil Mi-30 Vintoplan was a transport aircraft that could hold up to 19 passengers or two tons of cargo; its purpose was to replace the Mi-8 and Mi-17 Helicopters. With vertical takeoff and the ability to fly like a normal plane, the Mil Mi-30 has a clear advantage over the older models.
The first Naikrupneyshie Tilt Rotor Aircraft companies came into effect in the 1940s; the Vintoplan project was picked up and continued by these companies a few years after first development. Of course for soviet helicopter builders, the dream of converti-aircraft has been a skeptical dream that they wanted to put to the test. At the beginning of the 1980s, scientists and the helicopter designers assembled a design and several layouts for this complicated aircraft, the original design of the Mil Mi-30 Vintoplan was expected to use a TV3-117 Turbo Shaft Engine with a four-bladed propeller rotor on each wing; the original design of the Mil Mi-30 had several problems: Aeroelasticity, dynamics of construction, characteristics for the converter apparatuses, aerodynamics and flight dynamics. The Vintoplan went through several different designs and layouts, shifting from having 2 engines to 3–4 engines and back to 2 engines.
In 1981 an issue of decree on the development of the Mil Mi-30 Vintoplan made a proposal to the customer and institutions at MAP, shortly after words the military approved of the Vintoplan but desired bigger, more powerful engines. In the development the weight capacity was raised to 3–5 tons, and the passenger limit was raised to 32. In 1986–1995 the Mil Mi-30 was included in the program of armaments, however due to the collapse of the Soviet Union and the economics, the Mil Mi-30 did not soar out in the new age of technology.
The Vintoplan Mil Mi-30 was included in the 5-year plan in the Soviet Union from 1989 to 1995, the vehicle was able to enter service in 1996. In the last year, OKB experts in the Soviet Union designed three different models of the Mil Mi-30, each with unique designs- Mi-30S, Mi-30D, and the Mi-30L.
An unmanned tiltrotor project was demonstrated in Russia in 2015, and the first flight was made in early 2016.