Helikopter wiki

Later influenced by English helicopter. An internationalism mainly via German Helikopter.

A helicopter is a type of rotorcraft in which lift and thrust are supplied by horizontally spinning rotors. This allows the helicopter to take off and land vertically , to hover , and to fly forward, backward and laterally. These attributes allow helicopters to be used in congested or isolated areas where fixed-wing aircraft and many forms of short take-off and landing STOL or short take-off and vertical landing STOVL aircraft cannot perform without a runway. In , the Sikorsky R-4 became the first helicopter to reach full-scale production. Although most earlier designs used more than one main rotor, the configuration of a single main rotor accompanied by a vertical anti-torque tail rotor i.

Helikopter wiki

In principle everything that applies to real helicopters, applies also to helicopters in FlightGear. It is important to be familiar with fundamental helicopter manoeuvres. Some details are simplified in FlightGear, in particular the engine handling and some overstresses are not simulated or are without any consequence. In FlightGear it is not possible to damage a helicopter in flight. Since the release of FlightGear 0. For this reason, version 1. With these improvements the helicopter flight model of FlightGear should be quite realistic. These occur if you descend too fast and perpendicularly without forward speed. The heli can get into its own rotor downwash causing the lift to be substantially reduced. Recovering from this condition is possible only at higher altitudes. There is video of a Sea King helicopter which got into this condition during a flight demonstration and touched down so hard afterwards that it was completely destroyed. On the hardware side a use of a good joystick is recommended:A joystick without centering springs is recommended for cyclic control. You can achieve this with a normal joystick by removing or disabling the centring spring s , or you could use a force feedback joystick with a disconnected voltage supply. For controlling the tail rotor you should have pedals, or at least a joystick that can twist in in a yawing motion.

All 84 passengers were killed and all four crew members survived. Archived helikopter wiki the original on 4 March With these improvements the helicopter flight model of FlightGear should be quite realistic.

You are the pilot of a rescue helicopter. While you try to take castaways or fuel on board, enemy craft try to stop you. Initially, the enemy seems to be a foreign military power, but in level 2 it is revealed that this power either has superior technologly or gets help from outer space. A level is completed if all the shipwrecked are rescued. The jeopardized people are either on objects named "islands" in the manual, swim in the sea or - if two enemy craft collide - hover in the air as parachutists. In the top of the screen you are informed with the dialogue "Inhabited" if anybody needs help on an island.

This was followed by the fielding of electronic warfare and special operations variants of the Black Hawk. Modified versions have also been developed for the U. Navy , Air Force , and Coast Guard. In addition to U. Army use, the UH family has been exported to several nations. The Army also initiated the development of a new, common turbine engine for its helicopters that would become the General Electric T Based on experience in Vietnam, the Army required significant performance, survivability and reliability improvements from both UTTAS and the new powerplant.

Helikopter wiki

It was the first production helicopter to feature entirely fly-by-wire flight controls. The NH90 was developed in response to North Atlantic Treaty Organization NATO requirements for a battlefield helicopter which would also be capable of being operated in naval environments. The first prototype conducted its maiden flight in December ; the type first entered operational service in As of June , the NH90 logged , flight hours in the armed forces of thirteen countries. It has a Naval version that can land on ships and is used for sea rescue and submarine warfare, and an Army version that has been used for transporting cargo, people, medivac, and special operations. In addition, local construction of airframes was accommodated in many cases, giving participants in the program a chance to develop experience in construction.

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It is like balancing a ball sitting on another bigger ball, which is sitting on a much bigger ball. Helitack helicopters are also used to deliver firefighters, who rappel down to inaccessible areas, and to resupply firefighters. This is because a helicopter generates its own gusty air while in a hover, which acts against the fuselage and flight control surfaces. Munson, Kenneth. The purpose of the throttle is to maintain enough engine power to keep the rotor RPM within allowable limits so that the rotor produces enough lift for flight. Just above the ground, reduce the descent rate by pulling the collective. The Flettner Fl Kolibri synchropter —using the same basic configuration as Anton Flettner 's own pioneering Fl —was used in the Mediterranean, while the Focke Achgelis Fa Drache twin-rotor helicopter was used in Europe. Pateras-Pescara was also able to demonstrate the principle of autorotation. However, the charset is not very well readable, which would have been desirable, especially for deciphering the score digits. Retrieved 6 August

Sikorsky Aircraft is an American aircraft manufacturer based in Stratford, Connecticut.

It was a coaxial helicopter, contra-rotating. If the pilot pushes the cyclic forward, the rotor disk tilts forward, and the rotor produces a thrust in the forward direction. If the aircraft were to accelerate to the air speed that the blade tips are spinning, the retreating blade passes through air moving at the same speed of the blade and produces no lift at all, resulting in very high torque stresses on the central shaft that can tip down the retreating-blade side of the vehicle, and cause a loss of control. The helicopter would drift laterally. The design that Igor Sikorsky settled on for his VS was a smaller tail rotor. Due to the thrust of the tail rotor and the fins which also prevents the effect of the main rotor torque, the helicopter is pushed to one side. At the same time, reduce the collective to stop the helicopter from climbing. View the video on youtube's site here , and press the "CC" button at the bottom of the video on the to get youtube's automatic caption text for the voiceover, which may help non-English speakers. ISBN A perfect landing is achieved if you managed to zero the altitude, speed and descent rate at the same time gently. Some modifications of flaws in original game: Fuel only brings fuel, no score anymore.