TWO BLADED HELIO COPTER FULL

Each rotor has its own engine, and with no tail rotor, the full power of each engine goes into the respective main rotor. This dual rotor configuration is most commonly used in large helicopters that are designed to lift heavy loads. A Boeing CH-47 Chinook carrying a Land Rover. The rotors are also tilted slightly towards each other, which provides greater vertical control of the aircraft when hovering. The reason for the height difference between the rotors is so that the rotors will not collide with each other when they are in operation, even if they flex under heavy load. The two rotors spin in opposite directions, canceling out each other’s rotational torque, thus obviating the need for a tail rotor. The arrangement of the rotors in a tandem rotor helicopter is with one rotor mounted at the front of the helicopter and the second rotor mounted at the rear of the helicopter and in a slightly higher position than the front rotor. Tandem rotor helicopters have two main rotors and no anti-torque tail rotor. There are other dual-rotor helicopters, but the configurations of the rotors are different. Tandem Rotor HelicoptersĪ Tandem rotor helicopter is a name given to helicopters that employ dual main rotors in a specific configuration. The Eurocopter EC225 Super Puma is an example of a single rotor helicopter with a vertical anti-torque tail rotor. This will increase the lift capacity and speed of the helicopter. Some monocopter models have a separate motor powering the tail rotor, which increases the power the main motor can deliver to the main rotor. This takes some power away from the main rotor, reducing the lift power and speed of the helicopter. The drive for the tail rotor is usually supplied from the same engine that powers the main rotor. The tail rotor is required to counteract this torque-spin and keep balance the torque forces, keeping the body of the aircraft straight. The single main rotor generates torque which makes the body of the helicopter want to spin in the opposite direction to the main rotor. Helicopters with this single main rotor configuration are also known by the term “monocopter” in reference to the single main rotor.Īll single main rotor helicopters need an anti-torque, vertically mounted rotor on the tail of the aircraft.

Most modern helicopter designs have done away with multiple main rotors except for specific applications and have opted for a single main rotor accompanied by a vertical tail rotor. Single Main Rotor HelicoptersĮarly helicopter designs used multiple main rotors to provide lift and stability to the aircraft.

This allows for faster forward flight and makes the helicopter more fuel-efficient, which increases the range of the aircraft.Ī distinguishing feature of compound helicopters is the addition of small, stubby fixed wings on the fuselage of the helicopter to provide additional lift from the forward motion of the aircraft. In cruising flight, the compound helicopter can slow down the main rotor and use the forward thrust supplied by other means. The more common configuration for a modern compound helicopter is to have a turbo jet engine to provide forward momentum. In some configurations of a compound helicopter, the forward motion is provided by a tail-mounted propeller which generates forward thrust. In a compound helicopter, there is an additional propulsion method that is used to drive the helicopter forward and allow it to obtain much faster forward speeds. In traditional helicopters, forward motion is achieved by tilting the main rotor forward, which pushes air back and down, propelling the aircraft in a forward direction. Compound HelicopterĪ compound helicopter is a description given to a helicopter that uses a different propulsion method to achieve forward motion. These aircraft have become an important part of our modern society’s infrastructure and provide a valuable service in many different roles. The ability of the helicopter to hover, take off, and land in a small space, lift heavy loads, and fly at low altitudes has made it a useful aircraft that has been modified for specific needs.Ī helicopter is a common sight in most parts of the world, whether it is to monitor traffic, police a community, or transport cargo. The helicopter has revolutionized aircraft and brought versatility to what aircraft can be used for. Since the early days of the invention of the helicopter, it has progressed to the point that it has become an indispensable vehicle in our modern society.

The helicopter is probably the most versatile of all the flying machines that man has invented.

Two bladed helio copter