answersLogoWhite

0

Helicopters

A helicopter is an aircraft which is propelled and lifted in the air by one or more large horizontal rotors. Focke-Wulf Fw 61 was the first operational helicopter manufactured by Focke-Achgelis in 1936.

1,671 Questions

Can a helicopter drop from the sky if it hovers in one spot for too long?

User Avatar

Asked by Wiki User

No, a helicopter will not drop from the sky if it hovers in one spot for too long. Helicopters are designed to hover, and their engines provide continuous lift to keep them airborne. However, factors like fuel consumption and engine performance should be monitored to ensure safe operation.

What layer of atmosphere do helicopters fly in?

User Avatar

Asked by Wiki User

Helicopters typically operate in the troposphere, which is the lowest layer of the Earth's atmosphere where most weather phenomena occur. This layer extends from the Earth's surface up to an average altitude of around 11 kilometers (7 miles). Helicopters can fly at various altitudes within the troposphere depending on their mission requirements.

Why do the helicopter fly around every night?

User Avatar

Asked by Wiki User

Helicopters may be flying at night for various reasons, such as law enforcement patrols, medical emergencies, search and rescue missions, or military training exercises. It's best to check with local authorities or heliports for specific information on the helicopters flying in your area.

Why wouldn't a helicopter take off from the moon?

User Avatar

Asked by Wiki User

Helicopters require air for lift, and the moon has no atmosphere. Additionally, the moon's gravity is much weaker than Earth's, which would make it difficult for a helicopter to generate lift and stay airborne.

Why are there so many helicopters and small aircraft flying over Phoenix at night?

User Avatar

Asked by Wiki User

Helicopters and small aircraft flying over Phoenix at night could be due to various reasons such as medical emergencies, law enforcement activities, air tours, or flight training. Phoenix is also a major metropolitan area with multiple airports and flight paths, contributing to the air traffic seen at night.

Why is it hard for a helicopter to fly at altitudes above 6000m?

User Avatar

Asked by Wiki User

It is hard for a helicopter to fly at altitudes above 6000m due to the thin air at high altitudes, which reduces the lift generated by the rotor blades. As the air gets thinner, the helicopter's engine struggles to maintain power and lift. Additionally, the helicopter's performance is affected by the decreased air density, making it challenging to maintain stable flight.

Can a helicopter take off from the moon?

User Avatar

Asked by Wiki User

No, a helicopter cannot take off from the moon because there is no atmosphere on the moon to generate lift for the helicopter's rotor blades. Helicopters require air to push down against to lift off the ground, and since the moon has no atmosphere, a helicopter would not be able to take off.

Can helicopters fly in the stratosphere?

User Avatar

Asked by Wiki User

Helicopters are typically designed to fly in the troposphere, which is closer to the Earth's surface. The stratosphere begins at around 10 kilometers above sea level, and helicopters lack the necessary design and power to operate efficiently at that altitude.

Can helicopters fly into the stratosphere?

User Avatar

Asked by Wiki User

No, helicopters are not designed to fly into the stratosphere. The stratosphere is too high for helicopters to reach due to thinner air and colder temperatures. Helicopters are more suited for lower altitudes where air is denser for lift and engine performance.

Could a helicopter take off from the moon?

User Avatar

Asked by Wiki User

No, a helicopter cannot take off from the moon because there is no atmosphere to generate lift for the rotor blades to work. Helicopters rely on air density to generate lift, and the lack of atmosphere on the moon makes it impossible for a helicopter to fly.

A helicopter is flying south westerly direction on what bearing is it flying?

User Avatar

Asked by Wiki User

on a heading indicator there are 360 degrees, North being 0, East being 90, South 180, and West 270, the helicopter's flying SW, and is therfore in the middle of 180 and 270, so your answer is 225 degrees

Why do maple seeds spin like helicopter?

User Avatar

Asked by Wiki User

Maple seeds have a unique wing shape that creates a vortex of air as they fall, causing them to spin like a helicopter and slow down their descent. This spinning motion increases air resistance and helps the seeds travel farther away from the parent tree to find suitable germination sites.

Why do helicopters have a difficult time flying above 6000 meters?

User Avatar

Asked by Wiki User

Helicopters struggle at high altitudes due to reduced air density, which decreases lift generation, engine performance, and rotor efficiency. Furthermore, the lower air pressure makes it harder to control the aircraft, affecting its stability and responsiveness.

Why do helicopters have a difficult time flying at altitudes above 6000 m?

User Avatar

Asked by Wiki User

A helicopter blade works the same way as a wing on a fixed wing aircraft. The air flowing faster over the top of the airfoil generates lift. When a helicopter flies at a high altitude the air gets thinner. Because the air is thinner, more pitch on the blades is needed to keep the helicopter in the air. When too much pitch is on the blades the blades stall, air moves past the bottom of the blade and creates a vortex behind the top of the blade. All lift is lost and you lose altitude.

Why using earth leads are helicopter refuelling time?

User Avatar

Asked by Wiki User

Using earth leads during helicopter refuelling can help to prevent static electricity buildup and reduce the risk of sparking which could ignite fuel vapors. By grounding the helicopter to the earth, any static charges that have accumulated can safely dissipate, ensuring a safer refuelling process.

Do the F-35 need runways and taxiways in order to take off or land?

User Avatar

Asked by Wiki User

Yes, the F-35 is a conventional takeoff and landing aircraft and requires runways for both taking off and landing. It also needs taxiways to maneuver on the ground.

What are all the names to helicopter parts?

User Avatar

Asked by Wiki User

Main rotor, tail rotor, fuselage, skids or landing gear, cockpit, engine, transmission, rotor blades, rotor mast, swashplate, cyclic control, collective control, throttle, rotor head.

What is the fastest speed of a medical helicopter?

User Avatar

Asked by Wiki User

The fastest speed of a medical helicopter can vary depending on the model and manufacturer. However, most medical helicopters have a cruising speed of around 150-160 mph (240-260 km/h) and a top speed of around 180 mph (290 km/h).

What elements can be found in helicopter?

User Avatar

Asked by Wiki User

A helicopter typically contains elements such as a main rotor, tail rotor, engine, fuselage, landing skids or wheels, and a cockpit where the pilot controls the aircraft. They also have various systems like avionics, hydraulics, and fuel systems.

How do rotor helicopters work?

User Avatar

Asked by Wiki User

Rotor helicopters work by generating lift through the rotation of large horizontal blades called rotor blades. As the rotor blades rotate, they create a pressure difference between the top and bottom surfaces of the blades, producing lift. By altering the pitch of the rotor blades and controlling the speed of rotation, pilots can steer the helicopter in different directions.

How does a helicopter achieve drag?

User Avatar

Asked by Wiki User

A helicopter experiences drag through air resistance as it moves through the atmosphere. The main sources of drag in a helicopter are profile drag from its overall shape and skin friction from the airflow over its surface. Additionally, rotor tip vortices and induced drag generated by the rotor system contribute to overall drag.

What are the two basic gyroscopic characteristics possessed by a helicopter rotor system?

User Avatar

Asked by Wiki User

Precession: The rotor disc tilts in the direction of the force applied, 90 degrees later. Rigidity in Space: The rotor disc stays in a fixed plane as long as the helicopter is spinning.

What kind of energy does a helicopter have?

User Avatar

Asked by Wiki User

A helicopter typically has mechanical energy in the form of both potential energy (stored energy due to its position) and kinetic energy (energy of motion as the rotors spin).

What is the relationship between altitude and air pressure to explain why rescue helicopters have a difficult time flying at altitude over 6000m.?

User Avatar

Asked by Wiki User

As altitude increases, air pressure decreases due to the lower density of air molecules at higher altitudes. Rescue helicopters rely on air pressure to generate lift, so at altitudes over 6000m, the reduced air pressure makes it harder for helicopters to generate enough lift to stay airborne. This can limit the helicopter's performance and make it difficult to operate safely at such high altitudes.

How does the shape of the blade affect a paper helicopter?

User Avatar

Asked by Wiki User

The shape of the blade of a paper helicopter can affect its flight by influencing factors such as lift and drag. Blades with a larger surface area or more angled design may generate more lift, while blades with a streamlined shape may reduce drag, resulting in longer flight times. Experimenting with different blade shapes can help optimize the performance of a paper helicopter.