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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
Bell Helicopter Textron Inc 407 cost?
It depends the equipment installed in the aircraft, it will go from US$2.6M to US$3.0M (Bell 407 helicopter). For a better idea look for it in the Blue Book...
Why Rpm fluctuation in tv3 turbo shaft engines of MI-17 HELICOPTER?
two reasons
first: it is one spoole engine and have large amount of bleeding air distributed along hight compressor ,low compressor and combustion chamber
second:because of this it make adelay response of throttle liver and engine situation change
How do you control Helicopter in GTAVC?
The control of Helicopter is as follows for pc
1:forward dodo down
2:backward dodo down
3:up up key
4:down down key
5: turn left left key
6:turn right right key
Which way does the propeller turn on a helicopter?
On most helicopters, the main rotor turns in a clockwise motion. If you were sitting in the cockpit looking out the front, the rotor blades would swing from the left side 'round the front to the right side.
French made helicopters are the exception, they rotate the opposite direction, which can cause some confusion for the pilot if they are not prepared.
What is the difference between CH-46 and CH-47?
They are bothe twin rotor aircraft. The biggest difference visually is the 46 has tricycle landing gear (1 nose wheel and 2 mains) and the 47 has Quad ( 2+2).
How do you control the drag from increasing on aircraft?
using controller to control it.. decrease weight to reduce drag
What is the difference between a Puma helicopter and a Merlin helicopter?
its designed different that's like asking whats the difference between a f-15 and a f-16 two different aircraft
What is it called when helicopters transport objects by having them hang underneath them?
Helicopter design specs refer to this as an External Load. Commonly referred to as a "sling load". Some helicopters use a hoist to lift objects such as a Search & Rescue helicopter. This is a hoist load.
Olden times gadgets still being used in the present time?
olden times gadgets still being used in the present times
mussoorie is a hill station , 45 km far from dehradun , uttarakhand's capital.
What is the reason for a maximum rotor RPM with power on in a helicopter?
Flying a helicopter is a delicate balance of Rotor RPM and Rotor Torque. Too little RPM and it would lose lift. Too much RPM, then the centrifugal forces could damage the rotor blades. When the pilot adds Collective input to climb, the Rotor Torque could be exceeded and result in failure of the mast. Each flight restriction was based upon the design of the helicopter's mast, blades and grip.
Also, if the RPMs are too high the tips of the blade will hit the sound barrier and vibrate out of control. A helicopter with a blade length of 30 ft (radius) will only have to be spinning at around 330 RPMs to reach the sound barrier.
Who destroyed the Black Hawk Helicopter in Transformers?
Captain William Lennox, as played by Josh Duhamel. He pulled that stunt with the motorcycle, sliding between the legs and firing the rpgs at the Blackhawk.
Why are helicopters called hovercrafts?
Helicopters can hover stationary in the air, but they are not called hovercraft. A hovercraft is a ground based vehicle that rides on a cushion of air that is constantly pumped under a skirt around the base of the vehicle.
What is the best fighter helicopter?
There is no actual fighter helicopter. The closest thing is attack helicopters such as Apache.
What are reasons why airplanes crash?
Almost all airplane crashes occur due to a series of events. While possible, it is rare to find an airplane crash attributed to a single reason. For example, a Bashkirian Airlines Tupolev Tu-154M airplane crashed midair into a DHL Boeing 757-23APF cargo airplane over southern Germany on 1 July 2002. The accident investigation revealed several contributing factors to the crash (1):
· Contrary to regulations, there were insufficient air traffic controllers on duty in the Swiss Air Traffic Control (ATC) center (although the crash took place in the German skies, both aircraft were at the time under the control of the Swiss ATC)
· The collision detection and alert system at the Swiss ATC center was not working
· Even though a neighboring ATC center noticed the impending crash, they could not call the Swiss ATC to alert the Swiss ATC center because the Swiss's ATC center's primary and secondary phone lines were not working; and
· The Bashkirian Airlines pilot failed to follow the advisory instructions issued by the aircraft's Traffic Collision and Avoidance System (TCAS).
Had any single one of the above factors not occurred, the collision almost certainly would have been averted. The above example goes to illustrate how several seemingly unrelated events occur together to cause a crash.
A study of nearly 2000 plane crashes idenifies the following causes as contributing factors to airplane crashes (2):
· Pilot Error 53%
· Mechanical Failure 21%
· Weather 11%
· Other Human Error (eg lack of communication, improper maintenance etc) 8%
· Sabotage and Terrorism 6%
· Other Causes 1%
1: http://en.wikipedia.org/wiki/2002_%C3%9Cberlingen_mid-air_collision
2: http://airplanes.suite101.com/article.cfm/the_causes_of_aircraft_accidents
What are some uses of the helicopter?
there are many uses for helicopters. you can airlift people to a hospital if they are hurt, or you can skydive, and matbe ride in one just for fun! they are also used for search and rescue missions in the coast guard and the military uses them to transport troops and equipment.
