The rotor was completely stopped by the time the finger reached the rotor plane.
|
|
Two Pratt and Whitney turbo shaft engines power the large, main rotor and the tail rotor.
|
|
On a conventional helicopter the tail rotor counters "torque", a twisting force induced by the main rotor.
|
|
The S-76 features twin turboshaft engines which drive one four-bladed main rotor and a four-bladed tail rotor.
|
|
Unlike the SL-1200G, they have a single rotor motor instead of dual rotor, and an aluminum platter instead of brass.
|
|
It uses a unique double-rotor system in which the two intermeshing rotors cross each other, eliminating the need for a tail rotor.
|
|
Because the counter-rotating rotors also negate the torque typically generated on the fuselage by a single rotor, there's no need for a conventional rear tail rotor.
|
|
A conventional tail rotor always operates at full speed because it's mechanically linked to the main rotor; pilots adjust the pitch of the blades to control airflow.
|
|
Since helicopters appeared some 80 years ago, they've used a single high-speed tail rotor to counteract the torque of the main rotor, stabilizing the aircraft in flight.
|
|
"The (investigation board) is currently focusing on the examination of the MRH (main rotor head) suspension bar assembly, the main gearbox and the main rotor head," it said.
|
|
And the Army is already shopping for more exotic designs like the tilt-rotor V-280 Valor and Sikorsky's S-97 Raider with its compound rotor and push propeller.
|
|
They're color-coded to matching rotor arms and they release with the press of a button in the center of the rotor and a quick turn in the opposite direction.
|
|
Defiant strikes an intimidating silhouette with its prominent X2 technology, which features a coaxial rotor system and a large rear propeller that replaces the tail rotor found on conventional helicopters.
|
|
That technology – the ability to charge a complex electronic movement with just a spinning rotor – isn't quite there although some watches can use rotor spin to power a simple quartz movement.
|
|
That engine will still generate its usual noise, but the racket typically generated by the tail rotor—as the rotor tips pass through the air at high speeds—will be reduced.
|
|
Constantly switching the current forces the rotor to turn repeatedly.
|
|
Some 250 people can ride the Rotor at one time.
|
|
A second rotor was fitted to the ship in 2015.
|
|
Cutting back all tilt rotor, attack, and heavy lift squadrons.
|
|
A three-rotor Enigma cipher machine used by British WWII codebreakers.
|
|
Helicopter rotor blades carve up zombies and send dismembered corpses flying.
|
|
The drone's rotor arms fold up and snap smartly into place.
|
|
It holds the drone, charger, remote control, rotor blades and spares.
|
|
The emptiness made its rotor wash sound much louder than normal.
|
|
The rotor was spun at hover speed (1100 rads−1) and the finger proxy was introduced into the hoop at 0.36 ms−1 … The rotor and finger motion were captured using a shutter speed of 480 Hz. The rotor came to a stop within 0.077 s, with only light marks on the finger proxy from the impact of the hoop.
|
|
The magnetic force of the rotor magnets and the gap between the coreless stator and rotor magnets has also been tweaked, giving SL-27MK21200 torque that the company says is on par with the SL-27MK5.
|
|
Unlike a helicopter's, though, this rotor is not powered by the engine.
|
|
There, a giant 500-feet-diameter rotor will turn the huge magnet.
|
|
Don't get me wrong, the $1,299, six-rotor drone is expertly designed.
|
|
Even the rotor blades attach in a new and more secure way.
|
|
Thursday's report mentioned Iran has resumed making rotor tubes for advanced models.
|
|
The way you measure distance in a helicopter is a rotor width.
|
|
Even with the rotor guards, it easily fits in a small backpack.
|
|
Ninety percent of the rotational kinetic energy of the rotor (as computed from angular velocity) was dissipated within 0.0216 s of triggering, and 99 percent of the rotational kinetic energy of the rotor was dissipated within 0.032 s.
|
|
A witness mark consistent with the length and width of a rotor blade and containing fragments of rotor blade skin and honeycomb was positioned perpendicular to the direction of the debris line and directly above the impact crater.
|
|
As you might've inferred from the name of each type of aircraft, with tilt-wing designs the entire wing of the aircraft can change orientation, while on tilt-rotor, just the rotor itself adjust independent of the wing structure.
|
|
He flashed a picture of Dauntless, the company's single-rotor, weather-hardened drone.
|
|
The rotor required a further 0.0474 s to come to a complete stop.
|
|
But instead of having fixed wings, an autogyro's lift comes from a rotor.
|
|
There is also a fifth rotor on the tail to allow forward propulsion.
|
|
On Monday morning, two double-rotor US Army Chinooks roared onto the airstrip.
|
|
For engineers, that means the fluid-cooled stator now circles the moving rotor.
|
|
But there's at least one that has, well, just one rotor: the Fleye.
|
|
The type of sail the ETI is interested in is the Flettner rotor.
|
|
Maersk Pelican is the third vessel to have the rotor sail technology installed.
|
|
When he landed, his windshield and rotor blades were hit by mortar blasts.
|
|
But much faster than we'll get, say, affordable hex-rotor VTOL flying cars.
|
|
Its first voyage with the new rotor sail will take place Thursday evening.
|
|
The Volocopter is an 18-rotor electric cross between a drone and helicopter.
|
|
And Tom was at times inside one rotor width from the other helicopter.
|
|
Put simply, when the wind blows, a turbine's blades turn around a rotor.
|
|
And then the main rotor is about 100 yards (248 meters) beyond that.
|
|
Like the duo that came before, the new unit has a peripheral rotor, a feature the company trades on because it brings the benefits of an automatic without the hazards of a rotor that obscures 50 percent of the movement.
|
|
If one rotor fails, the others will continue to operate for a safe landing.
|
|
As the rescuer steps onto the skid, the main rotor hits his safety rope.
|
|
Another unique feature of the hybrid helicopter is its absence of a tail rotor.
|
|
This Latvian design has a tilt rotor and looks like a souped-up bicycle.
|
|
The main rotor was driven into the ground and splintered into a thousand pieces.
|
|
All else being equal, greater rotor diameter means the turbine can harvest more wind.
|
|
This arrangement can enhance airflow velocity and pressure when compared to an open rotor.
|
|
Unlike a conventional tail rotor, the rear pusher prop is completely electric, he said.
|
|
This arrangement can enhance airflow velocity and pressure when compared to an open rotor.
|
|
The actual sound the camera picked up is probably just a helicopter's loud rotor.
|
|
That causes the rotor to turn until it has aligned itself with the magnetic fields.
|
|
The RPM "decayed" to the point where the pilot could see the individual rotor blades.
|
|
That's because they use a fixed-wing, rather than quadcopter or other multi-rotor design.
|
|
Image: Idaho National LaboratoryDrum-like amusement park ride called the "Rotor" in Frankfurt, Germany, 1.
|
|
Bell and Army officials explain that their V-280 Valor substantially advances tilt-rotor technology.
|
|
They used planes and helicopters, although Zoller calls them "fixed-wing" and "rotor-wing" aircraft.
|
|
It is slightly slower than the duration of one rotation of a helicopter rotor blade.
|
|
Test pilot Fell credits the aircraft's flight capabilities to the rigidity of the rotor blades.
|
|
The plan is to gather operating data on whether rotor sails are a worthwhile investment.
|
|
Company officials say that will make them safer than choppers, which operate on one rotor.
|
|
The sculpture was rescued by the Belgian architecture collective Rotor, also represented by the gallery.
|
|
The Haliade-X will have a rotor diameter of 722 feet, roughly double the average.
|
|
Hyundai says the design, which uses smaller rotors, will be quieter than large rotor helicopters.
|
|
But the rotor blades spinning at 500 revolutions per minute add a bit of danger.
|
|
Bell & Sikorsky-Boeing Designs The Bell offering, called the V-280 Valor, seeks to advance tilt-rotor technology, wherein a winged-aircraft with two rotor blades over each wing seeks to achieve airplane speeds and retain an ability to hover and maneuver like a helicopter.
|
|
You've probably seen footage of helicopters flying where it looks like the rotor is barely spinning.
|
|
I'm sure she's fine, but when her finger touched the spinning rotor, she jumped in surprise.
|
|
Instead of one central rotor, it has two, mounted at the end of two stubby wings.
|
|
In contrast, the tip of the finger proxy introduced to an open rotor was completely destroyed.
|
|
We take you inside a factory where rotor blades as big as jumbo jets are made.
|
|
The main rotor gearbox had been involved in a road accident during its transportation in 2015.
|
|
The drone can easily handle a rotor that stops working, which is pretty standard these days.
|
|
He had full control just moments before, but his electric, eight-rotor aircraft was dropping fast.
|
|
"Left-front brake rotor exploded and went through the hood," the Furniture Row Racing driver said.
|
|
The V-280 is just the second tilt-rotor aircraft to be created for the military.
|
|
The helo has twin counter-rotating, intermeshing main rotors instead of a tail rotor drive system.
|
|
For a rotor sail the higher the ratio of wind speed to ship speed the better.
|
|
The cylinders, or rotor sails, work as mechanical sails that spin to propel the vessel forward.
|
|
Karma only stands about three inches off the ground, so the rotor clipped the rock. Oops.
|
|
The station reported that the chopper was on a routine maintenance flight for the main rotor.
|
|
In 2017, Hoen told me, US wind turbines had an average rotor diameter of 367 feet.
|
|
The V-280 Valor tilt-rotor aircraft has been conducting flights for more than two years.
|
|
Two pairs of rotor blades will spin in opposite directions at nearly 50 revolutions per second.
|
|
The system targets fixed- and rotor-wing aircraft, drones, cruise missiles, and air-to-ground missiles.
|
|
There was an armature holding nine light bulbs, each outfitted with a rotor below the bulb.
|
|
The vessel uses a 24-meter-tall cylindrical rotor sail developed by Norsepower Oy, another Finnish company.
|
|
The company's Volocopter VC200, a 18-rotor drone-helicopter hybrid, took its first crewed flight last year.
|
|
The company's Volocopter VC23, a 18-rotor drone-helicopter hybrid, took its first crewed flight last year.
|
|
He returned to assist them, despite damage to his helicopter's tail boom, main rotor blade and windshields.
|
|
Nonetheless, the bulk of the companies revenues are in commercial and military helicopters and tilt-rotor aircraft.
|
|
The unit itself isn't limited to a quad-rotor shape; it can be reconfigured to different forms.
|
|
He'd probably rotor do nothing else, and for us, it was just a great story to hover.
|
|
Both the dual rotor configuration and the rear pusher-prop contribute to the Raider's fleetness of flight.
|
|
So in the Raider, the engineers replaced the side-facing tail rotor with a rear-facing propeller.
|
|
The Lufthansa drone flights will inspect rotor blades closely, or monitor the construction of new wind farms.
|
|
Apparently, the signs and the tent hadn't been tested for the rotor wash from the big gunship.
|
|
A solo 240mm x 5mm rotor with Nissin single-piston caliper provides braking for the rear wheel.
|
|
Its 72 turbines will have a rotor diameter of 167 meters and weigh almost 900 tons each.
|
|
Simply hold the Powerball, wind the rotor, release, and slowly rotate your wrist in a circular motion.
|
|
The Segmented Ultralight Morphing Rotor (SUMR) project is being led by researchers at the University of Virginia.
|
|
Two months before the crash, U.S.-based Sikorsky, part of Lockheed Martin, issued a service notice saying the tail rotor and bearing assemblies of the S-92 should be checked following an incident with the tail rotor during a landing on an oil rig off Scotland on Dec. 28.
|
|
We're doing a specific rotor system on one of the engineering common reference models that Uber has released.
|
|
Pal-V says it doesn't need one; it can land, even without engine power, with its gyroplane rotor.
|
|
For drone noise, the company is suggesting custom rotor designs that would chop through the air more quietly.
|
|
That gets you the remote, extra battery, portable charging hub, and additional rotors and rotor guards for $699.
|
|
The rotor turns to align itself with the field in an attempt to reduce reluctance to the minimum.
|
|
The main rotor is supposed to turn -- even without power -- which essentially glides the chopper to the ground.
|
|
The new model has an exhibition back where you can see the rotor spinning over and balance wheel.
|
|
The company will jointly develop and fund research into rotor technology with the US Army's corporate research lab.
|
|
A pair of hexacopter (six-rotor) drones appeared to carry the explosives, according to a report in Bellingcat .
|
|
Wider WingspanZip drones are fixed-wing aircraft, which gives them greater speed and range than a rotor drone.
|
|
The four-rotor engine behind my head sounds like something akin to a 12-cylinder under full attack.
|
|
Hughes also forfeited his gyrocopter, which resembles a stripped-down helicopter with an unpowered rotor and separate propeller.
|
|
Having two rotor disks spinning in opposite directions balances that effect and allows for much higher top speeds.
|
|
The 6-rotor drone can lift up to 44 pounds and lasts for 30 minutes on a charge.
|
|
It's the fourth trans-Pacific trip for the Ospreys, again testing the tilt-rotor aircraft's capabilities and flexibility.
|
|
At the moment the tail rotor hit the strand of wire, the chopper flipped onto its left side.
|
|
By introducing him here, the publisher Elda Rotor continues her careful curation of Filipino classics for Penguin's roster.
|
|
"We can simulate puffs of wind, engine failure, even birds digested into the tail rotor," Mr. Groden said.
|
|
It improves stability because the rotors don't need to be constantly in motion, unlike a conventional tail rotor.
|
|
The helicopter was cruising at 2,000 feet when the main rotor head and mast suddenly detached, it said.
|
|
As the rotor spins, passing air flows with a lower pressure on one side compared to the other.
|
|
Listen and thrill, O seekers of sensation, to the "pah-pah-pah" of rotor blades beating the air.
|
|
The technology was initially developed for the U.S. Defense Department to realistically simulate rotor failure on helicopter flight simulators.
|
|
It sure sounds like a beast: an eight-rotor aircraft that can carry up to an 22kg (21lb) payload.
|
|
A tilt-rotor overcomes this problem with a pair of counter-rotating rotors mounted on a set of wings.
|
|
An older and bigger tilt-rotor called the V-22 Osprey is produced by Bell in partnership with Boeing.
|
|
This drone is built by Wingcopter, a German firm, and is of a type known as a "tilt-rotor".
|
|
The pusher-prop on the back of the aircraft is a small propeller behind the counter-rotating rotor heads.
|
|
The company's proprietary drone is a six-rotor system constructed from carbon fiber, aluminum and 3-d printed components.
|
|
Thirteen US aircraft were sent to Australia as part of the deployment, including the tilt-rotor Ospreys, Reuters reported.
|
|
The Rotor, for example—that ride was created in the late 1940s but still manages to look extremely futuristic.
|
|
Several witnesses told Norwegian media they saw the rotor blades separating from the helicopter while still in the air.
|
|
The second landed but struck a wall and damaged its rotor blades, and remains on the ground, Cook said.
|
|
And the machine starts to turn like a torpedo, like if you lost the small rotor on a helicopter.
|
|
The other landed safely but could not take off, Pentagon officials said, because its rotor had struck a wall.
|
|
Examination of the main and tail rotor assemblies found damage consistent with powered rotation at the time of impact.
|
|
First of all, you have to wait until the copter is underwater to make sure the rotor is stopped.
|
|
There are now three vessels in daily commercial operation using Norsepower's rotor sails, according to its CEO Tuomas Riski.
|
|
With the motor off, we push the needle through the buttonhole opposite the one we glued the rotor to.
|
|
Nesting colonies of Lesser Frigatebirds Fregata ariel on a remote north-western Australian island, photographed using a multi-rotor UAV.
|
|
The flyer does come with a thin plastic guard that should keep fingers away from the spinning, plastic rotor blades.
|
|
Here is the cool part: This magnetohydrodynamic drive, which turns water into a sort of rotor, is a real thing.
|
|
He recently joined well-known pilots Chad Nowak, Steele Davis, and Tommy Tibajia to form a group called Rotor Riot.
|
|
The image below shows how "trailing edge fringes" — the tiny plant-like fronds — might be added to the rotor blade.
|
|
In civilian use a tilt-rotor opens up all sorts of travel opportunities with their speed and range, he adds.
|
|
The commutator is attached to one end of the rotor, and picks up power from stationary "brushes" as it turns.
|
|
The V164-10.0 MW has a rotor diameter of 164 meters and 80 meter blades, which weigh 35 tons each.
|
|
VTOLs themselves are actually similar to commercial and consumer drones in a number of ways, including their multi-rotor design.
|
|
The forward rotor arms wing out horizontally when it's time to fly, and the aft rotors swing down and back.
|
|
The Cayenne's electric motor, like the one in the 918 Spyder, uses an internal instead of an external rotor architecture.
|
|
"He directs all the traffic, and keeps the rotor-wing out of the way of the fixed-wing," explains Zoller.
|
|
The helicopter, luckily, only suffered a dented rotor and a few scratches, according to the National Transportation Safety Board report.
|
|
Inside each, a small rotor ingests air from the front and pushes it out of the rear at higher speeds.
|
|
Viking Line said that the Viking Grace is the first passenger ship to use a rotor sail utilizing wind power.
|
|
The 47s lifted off behind us and rotor wash shoved us through clumps of dry grass and over warm boulders.
|
|
The image below shows how "trailing edge fringes " — the tiny plant-like fronds — might be added to the rotor blade.
|
|
William sat in the machine as its 18 rotor blades spun, but it did not take off for safety reasons.
|
|
There was one where his rotor blades were just a few feet away from the rock walls on either side.
|
|
Tremolos in the strings (here the Dutch Pelargos Quartet) begin to blend with the chopping noises of the rotor blades.
|
|
Rotor diameter is a measurement of the full sweep of the turbine's blades (the diameter of the circle they define).
|
|
As the multiple rotors are driven directly by individual electric motors, each rotor can be controlled by computerised flight systems.
|
|
The helicopter used a four-blade, fully articulated main rotor system, four-blade anti-torque system, and retractable landing gear.
|
|
The CH-47F Chinook is a dual rotor multimission helicopter used by the Army as well as international defense forces.
|
|
Last weekend, a Marine MV-22 Osprey tilt-rotor aircraft crashed off northeastern Australia, killing three Marines aged 19 to 26.
|
|
A fixed-wing drone can fly farther and cover a greater area on a single charge than multi-rotor counterparts, generally.
|
|
HeartMate 3 has wider blood passages and its rotor is suspended by magnetic forces to prevent damage to red blood cells.
|
|
The measured latency [of the Safety Rotor's braking response] was 0.0118 seconds from the triggering event to start of rotor deceleration.
|
|
On September 1.153th it arrived in Saudi Arabia on its first voyage since the installation of two 30-metre rotor sails.
|
|
Aboard the twin-rotor aircraft, and sitting diagonal from me, was the commander of all American troops in the country, Gen.
|
|
The rotor attachments looks somewhat flimsy and the final Cambits would probably some commercial spit shine before it became something purchasable.
|
|
Once a target is identified, a large six rotor drone is deployed that can be equipped with several different takedown devices.
|
|
Designed to fly with a rotor-blade, if you didn't know better you could mistake Black Hornet for a toy helicopter.
|
|
By eliminating exposed rotor blades typical of most drones, Skye makes it possible to operate around crowds without fear of injury.
|
|
In 2010, Enercon, a German windpower specialist, launched E-ship1 with four 2-metre rotor sails to assist its diesel engines.
|
|
Its rotor blades are collapsible making it easy to pack away, and its makers claim its battery charges in two hours.
|
|
This builds in an extra margin of safety so that should a motor or rotor fail, the aircraft would still fly.
|
|
He said it was unclear what caused the rotor to come off as the helicopter went down in a steep descent.
|
|
According to Toyota, the crankshaft timing rotor associated with those engines may have been manufactured with too much anti-corrosion coating.
|
|
The SeaDrone, demonstrated onstage at Disrupt NY today, brings the benefits and simplicity of multi-rotor airborne drones to underwater applications.
|
|
Moving slowly below the clouds was a white four-rotor surveillance drone, deployed by ISIS to reconnoitre the SWAT team's position.
|
|
It's a bird, it's a plane, it's … your burrito being carried by a six-rotor drone from the delivery service UberEats!
|
|
"We've got Ospreys," a Marine officer said, referring to tilt-rotor aircraft that flies like an airplane but can land vertically.
|
|
But that rotor is both the key source of noise for helicopters and a big safety risk while on the ground.
|
|
It has a 100-hour power reserve, and the underside features an 18-karat gold rotor in a sculpted sun motif.
|
|
Its ducted fans provide lift and propulsion without the dangers of exposed rotor blades and high maintenance costs of rotary-winged aircraft.
|
|
"Variable RPM allows us to maintain good efficiency across a wide range of rotor thrust," Karem Aircraft CEO Ben Tigner told me.
|
|
As the rotor spins, passing air flows with a lower pressure on one side compared to the other, creating a propulsion force.
|
|
A smaller motor powers the tail rotor, while an additional propeller causes the Lego helicopter's main roto to slowly spin in flight.
|
|
But interest in wind propulsion, and in rotor sails in particular, is growing as shipping lines seek ways to slash fuel bills.
|
|
In addition to the F-35s, Japan is buying the Bell Boeing Osprey tilt-rotor aircraft and Northrop Grumman's Global Hawk drone.
|
|
The rotor blades of an attack helicopter spinning toward my virtual soldier didn't look any more fluid or discernible between frames either.
|
|
The researchers equipped an eight-rotor, 12.5 pound drone with a defibrillator and painted it to look like a little drone ambulance.
|
|
A 3D aerial scanning and modeling system, FalconViz utilizes multi-rotor copters and fixed wing UAVs with Aerial SFM, a proprietary software.
|
|
It's got a rotor on its tail, but the whole structure of the vehicle is really more like that of a plane.
|
|
Bar-Yohay claimed if there was a problem with the two wing engines, it could continue flying on the rear rotor only.
|
|
Heather McDowell is a pediatric nurse in Texas who flies fixed wing drones, which look like planes instead of four-rotor helicopters.
|
|
Because these bits sit at the wingtips of the tilt-rotor, they can't come crashing into the cabin during a hard landing.
|
|
You can even just grab the thing in mid-air and turn it sideways, which automatically cuts the power to the rotor.
|
|
A U.S. official, speaking on condition on anonymity, said the incident took place in Syria and involved an Osprey tilt-rotor aircraft.
|
|
YouTubers CorridorDigital and Rotor Riot teamed up to make this incredible drone dogfight starring a Rebel X-Wing and three Tie Fighters.
|
|
Created by the UC Berkeley's Biomimetic Millisystems Lab, this little robot uses rotor-based thrusters and bouncy legs to do its tricks.
|
|
As the rotor spins, passing air will flow with a lower pressure on one side compared to the other, the business said.
|
|
A modified Z-2950 with a foldaway tail rotor was first seen aboard the Type 264 guided-missile destroyer Nanchang in July.
|
|
"I saw the tail rotor wasn't moving, and I knew they were in serious trouble at this point," Reynolds told the station.
|
|
Specifically, one of the engine's rotating fan blades failed after repeatedly rubbing against a rubber-like polyimide seal inside the rotor assembly.
|
|
Mr. Groden said, "We can simulate puffs of wind, engine failure, even birds digested into the tail rotor," not "the tail rudder."
|
|
Editor's Note: The OH-58 is a single-engine, single-rotor military helicopter used primarily for observation, utility, and direct fire support.
|
|
As he got to the door of the helicopter, the wind hit him, as did the rotor wash, as did his nerves.
|
|
"The conventional rotor system has a lot more give, think about it like the ride of Cadillac — it's less responsive," Malia said.
|
|
But Zero Zero says its tilt-rotor design, which lets each propeller swivel independently, allows the Falcon to match four-prop rivals.
|
|
He's one of 50 who have "expressed interest" in owning an Agusta Westland AW609 Tilt-rotor, a futuristic plane and helicopter hybrid.
|
|
As the rotor spins, passing air will flow with a lower pressure on one side compared to the other, the business says.
|
|
Tilt-rotor aircraft called Osprey that take off and land like helicopters but fly like planes have since been stationed at Futenma.
|
|
The DHA news agency said the helicopter's rotor blade hit a vehicle, smashing its windscreen and causing its roof to sink in.
|
|