The Theory Of Helicopter Flight
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it starts from physics.Originally posted by usck:all start from Mechanical Engineering
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Contractor:...................... Aérospatiale (Eurocopter), Europe (France)
Type:............................... Medium lift helicopter
Accomodation......................... 3 aircrew with 23 passengers
Length:............................ 18.70m.
Height:............................ 4,9 m.
Rotor diameter:.............. 15,6 m.
Empty weight:................. 4.330 kg
Max take off weight:...... 9.000 kg
Payload:.......................... 4.500 kg or 25 troops
Power plant:.................... 2 Turbomèca Makila IA1 free turbines rated at 1.877 hp each
Armament:...................... 1 20 mm. cannon, 2 7,62 mm. guns, 2 68 or 70 mm. 36 rockets pods
Max speed:..................... 278 km/h (167 kts)
Cruising speed:............... 262 km/h
Service ceiling:............... 4.100 m.
Max range:..................... 1.245 km (580Nm)
Casevac (Stretcher):.............6
Endurance:.....................4.5hrs -
wow, the only thing i notice is that u took over 1hr+ to post all that. anyways it's good info.
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hahaha i had to pick which info not to post...Originally posted by l0st-s0ul:wow, the only thing i notice is that u took over 1hr+ to post all that. anyways it's good info. -
wah biang
my physics cannot make it
can fly can already... arhhahaha -
bump
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I see the word, Marina... something... where was it?Originally posted by eurofighter:
I wonder if they can use the cowling as a servicing platform??? -
I stated at the info section right at the bottom as Marina South. You know the grass area before Benjamine Sheares Bridge? Took during the samsung skydiving event.
X-men, were u around when they had this mod?
You mean the FLIR pod on the SP? -
Yeah saw the pic again and scrolled down to see the comments!Originally posted by eurofighter:I stated at the info section right at the bottom as Marina South. You know the grass area before Benjamine Sheares Bridge? Took during the samsung skydiving event.
You mean the FLIR pod on the SP?
Well the black things at the side are the IR Suppressors, and the air intake area is called the MPAI. If u look at the other puma pic i put up, that one is the original wire mesh cover at the air intake.
And u see the empty rectangle under the puma? that's for the central tank. It has been removed because of the 4.5ton hook has been installed. -
eh idiot...... u need to take a few daes leave from ur work.......
or i'll tie a few Det No.8s round u with Det Cords?
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Hahahaha i AM in a way on leave.Originally posted by Stefanism:eh idiot...... u need to take a few daes leave from ur work.......
or i'll tie a few Det No.8s round u with Det Cords?
3 days MC, donch pray pray... today second day -
I see that many of RSAF's SP's are fitted with the wire mesh at the intake?
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nope, most are fitted with the MPAI, only the red and white aircraft have the wire mesh. Weight constraints.Originally posted by eurofighter:I see that most of RSAF's SP's are fitted with the wire mesh at the intake? -
nvm
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and end at aerospace engineeringOriginally posted by usck:all start from Mechanical Engineering -
so sayeth the physics pro.Originally posted by Fluffy.white.sheeP:wah biang
my physics cannot make it
can fly can already... arhhahaha -
it starts from people dreaming to flyOriginally posted by kopiosatu:it starts from physics. -
wtf is this Shit? first say mech eng, then what physics, and then this, soon people is gonna say some lame Shit like "it all starts from god" or somethingOriginally posted by shoutcast:it starts from people dreaming to fly -
Early Concepts:Originally posted by the.raven:wtf is this Shit? first say mech eng, then what physics, and then this, soon people is gonna say some lame Shit like "it all starts from god" or something
The helicopter is arguably one of the earliest ideas for achieving flight. Over two thousand years ago, the Chinese constructed what are known as Chinese Tops, illustrated below. These simple toys consisted of a propeller attached to a stick that would be spun rapidly through ones hands to spin the propeller and achieve lift. These toys are still common today.
Chinese top [from Gessow and Myers, 1952]
Later, in the 15th Century, famed inventor and artist Leonardo da Vinci designed one of the more aesthetically pleasing concepts for a helicopter, but such a craft was never actually constructed.
Leonardo da Vinci's "Helicopter", 15th Century [from Gessow and Myers, 1952]
First Successes:
In England in 1796, Sir George Cayley constructed the first powered models of helicopters that were driven by elastic devices. One of these models, shown below, attained an altitude of ninety feet.
Sir George Cayley's helicopter, 1796 [from Gessow and Myers, 1952]
In 1842, almost fifty years after Sir George Cayley, fellow Englishman W. H. Phillips constructed a model helicopter that weighed 20 pounds (9 kg) and was driven by steam. He proposed a full-sized three-propeller machine (one propeller for lift, and two for directional control), but it was never built. In 1878, Enrico Forlanini, an Italian civil engineer, also constructed a steam driven model helicopter that only weighed 7.7 lb (3.5 kg).
In 1880, Thomas Edison was the first American to perform any notable research on helicopters. Edison built a test stand and tested several different propellers using an electric motor. He deduced that in order to create a feasible helicopter, he needed a lightweight engine that could produce a large amount of power. -
Summary
Even though the concept of the helicopter is arguably older than that of the airplane, there is still a great amount of research and advancement yet to occur. As the political climate of our world continues to change and military conflicts approach the small-scale urban warfare of recent years, the importance of the helicopter will continue to grow. It is rather ironic that an idea first conceived long before the Common Era will be key to winning military conflicts in the 21st century
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The world smallest R/C helicopter...
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muahahahahahaha i've got to see that in action... the hamster ups the cute factor
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its the weekend!~ bump for those who are interested to know!