Helicopters

I have the same problem if it was making a grinding noise contact ego-fly if its not making a grinding noise the rotors might be hitting each other

The Model of the Huey Helicopter was hanging above the High School Diploma in Col. Blake's office and not in Col. Potters office.

The answer is Blue Blue Yellow Yellow. Hope this helps!

That would depend upon the size of the helicopter, wouldn't it. I have seen tiny one-man choppers, and huge ones. The Russian Mig 6 could carry 90 passengers, but the current largest passenger helicopter, the Sikorsky S-92, can carry 19 passengers.

Some can carry over 90 people.

By tilting the main rotor forward or backward.

Leonardo da Vinci did not actually 'make' a helicopter, he just drew his concept of it.

The fastest are attack helicopters like Apache, they mostly fly about 230 -250 mph.

The US Army named most of it's helicopters after Indian tribes.

the apache helicopter got it's name from the apache football team from Gonzales,tx.

A helicopter flies using a rotor and can hover whereas an aeroplane has wings and aeroplanes can generally hold a bigger amount of people.

dura alminium

A flying machine with a rotor an a propeller is a helicopter

The standard range is is 445 nautical miles (504 statute mile) this can be doubled with auxiliary fuel tanks and is unlimited with air refueling. ([I am unsure of their source of fuel, and wish to know out of curiosity someone please elaborate and this)]

Marine One

Titanium is mostly used

It's a place especially made for helicopters to land on and always marked with a big: 'H'.Very handy on ships or skyscrapers or even your garden.

no. he had nothing to do with the helicopter.

he only invented the gramophone and the early microphone.

i hope that this answer helps you a lot with work.

:)

The first operational helicopter was built in 1936, the Focke-Wulf Fw 61.

Simple answer: By blowing air at the ground.

Long answer: Air moving in the right way can have immense force behind it. Hurricanes can flatten trees, tornadoes can pick up cows and jet aircraft can use a directed jet of air to propel itself.

The Rotor blades of a helicopters are like a massive, high powered fan that blows air downwards. Each rotor blade has an airfoil profile (similar shape to the cross section of an airplanes wing), so as the rotor blade turns it generates lift, just like an airplanes wing. The when the blades turn fast enough the lift forces will be greater than the forces of gravity. The pilot can control this by altering the angle of the blades. As the pilot increases the angle of the blades, more lift will be generated. In practice all helicopters do not have much variation in rotor speed during flight, and the rotor speeds are a lot slower than most people realise.

But there's a problem known as Torque Reaction. If you just have a single main rotor, then as the helicopters blades starts to get to a state where lift from the blades equal the forces of gravity, the helicopter will start to spin on the spot. (A visual thing to see this in action is watch the film Black Hawk Down, when the helicopter gets shot and loses its tail rotor).

To balance the forces induced by torque reaction, most helicopters have a tail rotor at the end of the tail boom. The tail rotor blades have a variable angle controlled by the pilot, like the main rotors. Adjusting the angle of blades will balance the forces of torque reaction. Altering this angle in a hover will allow the helicopter to turn on the spot.

Usually you don't fly higher than 12,000 feet in a helicopter, because of the lack of oxygen at those high altitudes.

However, there is a world record, holding up for 40 years:

On June 12, 1972 Jean Boulet piloted the Aerospatiale SA-315 Lama to a helicopter absolute world altitude record of 40,820 feet.

Its a cabin in a helicopter where the pilot sits.

i don,no