V/STOL

Some planes do not need long roads to fly.

They can go straight up into the sky. They can also land in small spots.

This helps them fly near where they are needed. Some planes use a short path to take off. This lets them carry more food and gear. These planes can even land on small ships. It is very cool to see them fly!

Some planes can take off or land in special ways. We call these V/STOL aircraft. This name stands for vertical and/or short take-off and landing.

Most planes need a long runway to fly. V/STOL planes do not. Some can go straight up. We call this VTOL, or vertical take-off and landing.

Other planes use a short runway. This is called STOVL. It stands for short take-off and vertical landing.

Using a short runway is helpful. It lets the plane carry more fuel and heavy gear. A plane like the Harrier uses this way. It cannot lift off straight up if it is too heavy.

Some planes use special parts to fly. The V-22 Osprey is a tiltrotor aircraft. This means its rotors can tilt. It can act like a helicopter to lift off. Then it can act like a plane to fly fast.

Some airplanes do not need long runways to fly. We call these V/STOL aircraft. This name stands for vertical and/or short take-off and landing.

These planes are very useful for the military. They can land in forest clearings or on small ships. This helps them respond to jobs much faster. They do not always need big ships with catapults to launch.

There are different ways these planes work. Some can perform VTOL, which means vertical take-off and landing. These planes can hover in one spot like a helicopter.

Other planes use STOVL, or short take-off and vertical landing. This method uses a short runway to help the plane. A plane might use a ramp called a ski-jump to help it lift.

This way allows the plane to carry more fuel and heavy gear. Using a runway makes the flight more efficient than going straight up.

People have dreamed of vertical flight for a long time. Leonardo da Vinci even drew sketches of it in his notebooks.

The first manned helicopters flew in 1907. Many inventors tried to build special planes later on. Henry Berliner worked on a design between 1922 and 1925. Nikola Tesla even had a patent for this in 1928. In the 1950s, many companies tested new fighter jets. Some of these tests, like the XFY Pogo, ended when contracts were cancelled. It took many years of hard work to make these planes real.

Many famous aircraft use these special skills today. The Hawker Siddeley Harrier is a very well-known example. The F-35B Lightning II is another modern jet that can land vertically. There are 16 aircraft carriers in the world that use these planes. Nine are in the United States and two are in Japan.

Italy and the United Kingdom also have two carriers each. Spain has one carrier that uses these special aircraft. The Bell Boeing V-22 Osprey is a famous tiltrotor plane. It uses rotors that tilt to fly like a helicopter or a plane.

Think about how a helicopter stays in the air. It uses spinning blades to push air down. V/STOL planes use similar ideas but move much faster.

Some use thrust vectoring, which means they can point their engine power. This lets them change direction easily. New technology is even working on electric planes called eVTOLs. These might one day act like air taxis for people. They will use new ways to move through our skies. Scientists are always finding new ways to make flying easier.

V/STOL aircraft are specialized airplanes designed for unique flight patterns. The term stands for vertical and/or short take-off and landing.

These aircraft are distinct from helicopters. While helicopters use spinning rotors for lift, V/STOL aircraft are aeroplanes. They achieve lift by planing the air during forward flight. This allows them to reach higher speeds and better fuel efficiency than helicopters. They are essential for modern military operations because they can operate from small spaces.

To understand how they work, we must look at different flight modes. VTOL, or vertical take-off and landing, is a subset of V/STOL. These aircraft can hover in place without a runway. However, many V/STOL planes prefer STOVL, which means short take-off and vertical landing.

In STOVL mode, the aircraft uses a short runway to gain speed. Some carriers use a ramp called a "ski-jump" to assist this process. This rolling takeoff reduces the amount of thrust needed to lift the plane. By using a runway, the aircraft can carry a much larger payload of fuel and weapons.

There are several mechanical ways to achieve these flight capabilities. One common method is thrust vectoring. This involves directing the engine's exhaust to change the direction of the force. The Hawker Siddeley Harrier family is a famous example of thrust-vectoring aircraft. Another method uses tiltrotors. The Bell Boeing V-22 Osprey is the world's first production tiltrotor. It features large proprotors mounted on wingtip nacelles. These rotors tilt upward to act like helicopter blades for takeoff. They then tilt forward to act like propellers for high-speed flight. Other experimental designs have used lift fans or even tilting wings.

History shows that many inventors tried to solve the problem of vertical flight. Leonardo da Vinci included sketches of vertical flight in his notebooks centuries ago. The first manned helicopters flew in 1907, but perfecting them took much longer. Between 1922 and 1930, inventors like Henry Berliner and Nikola Tesla worked on early designs. During the 1940s and 1950s, many experimental aircraft were built. The Convair XFY Pogo and the Ryan X-13 Vertijet were tested but the programs were eventually cancelled. Even the Lockheed XV-4 Hummingbird faced fatal crashes during its testing phase.

Despite many failures, specific designs eventually reached operational status. Only two subsonic designs from the 1950s to 1980s became fully operational: the Hawker Siddeley Harrier and the Soviet Yak-38 Forger. The Forger was later withdrawn after the fall of the Soviet Union.

Modern technology has improved these capabilities significantly. The F-35B Lightning II is a modern fighter that demonstrates VTOL capability in tests. However, it is mostly used as a STOVL aircraft in real operations. This allows it to carry more weight than a pure VTOL flight would allow.

Today, V/STOL technology is vital for many nations. There are currently 16 aircraft carriers in the world that operate STOVL aircraft.

The United States operates nine of these carriers. Japan operates two, and the United Kingdom also operates two. Italy has two carriers as well, while Spain operates one. These ships allow high-performance fighters to operate without needing large catapult systems. This capability provides air cover and ground attack support from much smaller bases.

Looking forward, the field of vertical flight continues to change. Researchers are now developing eVTOL aircraft, which stands for electric vertical takeoff and landing.

These use electric power instead of traditional jet fuel. They are being designed for advanced air mobility, or AAM. This could include on-demand air taxis or freight delivery services. As autonomous flight control improves, these electric aircraft may change how people move through cities. The journey from Da Vinci's sketches to electric air taxis shows how much flight technology has evolved.