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
What were gladiators weapons made of?
Mostly metals, although spears/tridents would have wooden shafts. In addition, the net of the Retiarii was of course made out of material. Bronze may have made an appearance, but by far the dominant metal was iron. Later gladiators may have even had weapons made of an early form of steel.
Aircraft designed primarily for attacking other aircrafts?
They are called Fighters. Other names are interceptors or pursuit aircraft.
When were planes or helicopters invented?
It is said that the beginning of inventing flying objects started on the 19th century. The goal to make a flying machine started with Otto Lilienthal who makes gliders and the one who created the book about the study of flight which is also know as AERODYNAMICS. Leonardo Da Vinci draw a sketch of a helicopter at his time and the first successful flying helicopter was designed by the Russian Igor Sikorsky in the late 1939.
What is the difference between aircraft and aeroplane?
Most people, ourselves included, tend to use the terms airplane and aircraft synonymously. If you want to be technically correct, however, there is a distinction. The dictionary defines an aircraft as any craft that flies through the air, whether it be an airplane, helicopter, missile, glider, balloon, blimp, or any other vehicle that uses the air to generate lift for flight.The term airplane, on the other hand, is more specific and refers only to a powered vehicle that relies on fixed wings to generate lift. A Boeing 747 commercial airliner is both an airplane and an aircraft while the AH-64 Apache attack helicopter is an aircraft but not an airplane.
Why was the Huey helicopter known as?
Originally the UH-1 was designated the HU-1 by the manufacturer, Bell helicopter. The DOD re-designated it to UH-1 to conform to their aircraft designation matrix. How the nickname "HUEY" came into being I'm not totally sure but I think it stemmed from the HU/UH designation. Instead of refering to the helicopter as HU-1 or UH-1 it's easier tosay Huey. It sounds nifty when its spoken. The "A" models came out in the late fifties and the pedals had "BELL" stamped on them in large letters. In the Mid sixties with the introduction of the D & H models the pedals were stamped "HUEY". So sometime between 1956 and 1962 the "huey" nickname became so prevalent that the manufacturer got onboard with it and the rest is history.
How has the helicopter changed over time?
Realistically speaking, today's helicopters are extremely similar to the first practical helicopter designs, those of the 30s to 50s. A huge number of interesting designs were tried out when helicopters were first being developed - the current "standard" helicopter layout was found to be the most practical, but virtually all of the other possible designs have been made into fully functional helicopters, once the appropriate new technology was able to overcome their limitations vs. the "standard" design.
The primary difference has been the replacement of the piston engine with the gas turbine engine, which provides much "smoother" power (i.e a continuous power profile) and a considerably higher power/weight ratio. The other major change has been the significant use of composites in the helicopter airframe and rotor, replacing aluminum in most cases.
A few other changes have also made there way into helicopter designs:
- Ducted tail rotors like the AS 365
- NOTAR (NO TAil Rotor) designs like the MD-540 that use exhaust from the turbines ducted to the tail boom to counter rotor torque
- The creation of the armed attack helicopter in the 1960s - an armed and sometimes armored helicopter specifically designed to attack rather than designate targets
- Digital flight controls, and new fly-by-wire designs replacing mechanical linkages
- Fully pressurized cabins
- Large cargo bays with deployable ramps, allowing for vehicles to be driven directly into the helicopter
In addition to the technological changes listed above, the role that helicopters have placed in both the military and civilian society has evolved.
Heavy lift helicopters (the Sikorsky S-64 'SkyCrane' being the prototypical example) are now employed in a huge variety of locations, from skyscraper construction, to remote logging operations, offshore platform resupply and construction, to salvage operations.
The advent of the "LifeFlight" fast-reaction medical helicopter has significantly changed trauma care in most industrialized nations, with the ability to transport trauma victims (typically, from accidents) from the scene to the hospital in minutes rather than one or more hours.
With increasing power and larger designs, the ability of helicopters to transport more troops and equipment (and, a larger variety thereof) has proved a very significant revolution in military tactics. The entire concept of the "airmobile" infantry force come into being in the early 1960s with the advent of the Utility helicopter, the famous UH-1 Huey being the poster child. Air support was now also more sustainable than from a quick flyby of a jet - the evolution of aerial fire support took a huge jump forward with the creation of the Attack Helicopter. Fast anti-tank support was now just a radio call (and minutes) away, even over the roughest terrain, and pinpoint rocket and machinegun fire also changed the characteristics of the infantry battle.
Helicopters, mated with increasingly sophisticated sensors and weapons, have evolved into the primary threat against submarines.
Helicopters have also supplanted small planes for many remote region resupply jobs, and are now the de-facto platform of choice for many forestry-related jobs; from firespotting, to fire-fighting, to logging, and even animal medivac.
Helicopters can land on any surface that's firm and flat enough.
A dedicated spot for helicopters to land on is called a helipad or a heliport.
They're often a part of a regular Airport.
What was the greatest crisis of the American federal system?
The civil war was the greatest crisi of the American federal system.
What air craft is a helicopter that can turn into a propeller airplane after takeoff?
A VTOL (Vertical Take Off and Landing) aircraft is one that can takeoff and land like a helicopter, but fly like a plane. A good example is the V-22 Osprey.
Short Answer: They fly!
Long Answer: Helicopters are great for short distance point to point transport. Unlike fixed wing aircraft, they can land on any reasonably flat area that is a bit bigger than the main rotor size.
This makes them ideal for flights where there is not a runway at one end.
Smaller personal helicopters are widely used for business travel. Faster than most ground vehicles, they can avoid traffic congestion and difficult routes to get straight to their destination, often able to land nearby.
Larger helicopters are used to transport materials to or from difficult locations.
Military helicopters can carry both troops or weapons systems. Their ability to hover in place allows them to provide effective air support for ground troops, as well as delivering supplies and troops to a forward deployment area.
What if everyone owns a helicopter?
There would have to be more helipads. The ATC staff will have to increase tremendously. There will be lesser traffic on roads and more in the air. Fuel Consumption would sky-rocket.
What are the names of helicopter parts?
I need to know the names of the controls of a remote control helicopters
How do you eat a helicopter seed?
I assume you are talking about maple seeds. If that's the case, you can boil them, roast them, or dehydrate and grind them into a flour. Regardless of the method, I would taste them first, if they taste bitter you should boil them for a little while and change the water until they're not bitter.
How much does a Chinook helicopter cost?
As of Summer 2010, there are two current versions of the CH-47 Chinook helicopter undergoing manufacture. One version is the F model (CH-47F). The other is the special operations version - the G model (MH-47G). This answer is for the F model. There are two manufactured versions of the F model. One is a brand new airframe with used dynamic components. It costs approximately $18,125,000 each. The other version is a brand new airframe with all new components. It costs approximately $ 25,400,000 each. These are the base prices without additional modifications added post manufacture that are required to attain mission ready status prior to the receiving unit gaining the airframe.
How does a windmill or helicopter turn?
Helicopters and windmills turn different ways. Windmills turn by the wind. The stronger the wind, the faster the windmill goes. Helicopter turn by electricity. Electricity is "hot". For Example: If you get electrocuted it will feel hot. You will really be getting burnt. So the heat of of the fire will light the wire's and that will turn the helicopter's propeller.
Who built the apache helicopter?
Although the Apache helicopter was invented by McDonnell Douglas, it was built by boeing.
Where can you find pictures of helicopters?
Google image search is a wonderful tool for things like this. The google image search for helicpoters is linked below.
Wikipedia also has numerous pictures of helicopters, this is also linked below.
How does a rotor blade get damaged?
This is usually caused by the rotor hitting debris or a birdstrike.
