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Why can a helicopter without a tail rotor fly so steadily?

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Engineering Explained

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239,341 次观看 • 9 个月前 •via X (Twitter)

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Anyone know what type of helicopter this is? How can this thing fly without a tail rotor?
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Anyone know what type of helicopter this is? How can this thing fly without a tail rotor?

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It's a Kaman K-max. Heavy lifting helicopter. There's only 100 worldwide or so. No need for a tail rotor. With a full tank of fuel they can lift 8000 pounds!
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It's a Kaman K-max. Heavy lifting helicopter. There's only 100 worldwide or so. No need for a tail rotor. With a full tank of fuel they can lift 8000 pounds!

Graphite Czech 🇨🇿🇩🇪🇺🇸

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The Ka-27 uses a complex coaxial rotor system to eliminate the need for a tail rotor. It has two three-bladed rotors mounted on the same axis. They rotate in opposite directions, so their torque reactions largely cancel. But both rotors still need collective and cyclic pitch control. That requires concentric drive shafts, swashplates, pitch links and other control mechanisms to fit into one compact rotor head. The animation shows how much hardware is needed to control two rotors from the same axis. The result is a compact helicopter without a tail rotor, but with a much more complex rotor head and transmission.
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The Ka-27 uses a complex coaxial rotor system to eliminate the need for a tail rotor. It has two three-bladed rotors mounted on the same axis. They rotate in opposite directions, so their torque reactions largely cancel. But both rotors still need collective and cyclic pitch control. That requires concentric drive shafts, swashplates, pitch links and other control mechanisms to fit into one compact rotor head. The animation shows how much hardware is needed to control two rotors from the same axis. The result is a compact helicopter without a tail rotor, but with a much more complex rotor head and transmission.

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trying roblox's fluid forces again, this time with a more accurate helicopter rotor (featuring blade pitching and flapping from aerodynamic forces)! tried my hand at dynamic sound effects too, which seems to be turning out nice. tail rotor mechanism soon... #roblox #robloxdev
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trying roblox's fluid forces again, this time with a more accurate helicopter rotor (featuring blade pitching and flapping from aerodynamic forces)! tried my hand at dynamic sound effects too, which seems to be turning out nice. tail rotor mechanism soon... #roblox #robloxdev

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HELICOPTER HELICOPTER WOLVERINE CAN FLY #MarvelRivals bogur 🇧🇬
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A Bell 222 (think Airwolf) has crashed in Huntington Beach, California this afternoon. N222EX is well know to visit local car shows and charity events in SoCal. You can see the tail rotor start to change directions in the video and a fast clockwise rotation starts meaning tail rotor authority has been lost. This is the absolute worst time to lose a tail rotor. In forward flight you have a chance but near zero airspeed, it’s next to impossible to fly the aircraft out of it. Latest report is it was just the pilot onboard and he is alive with injures. Pray🙏 🎥sip this ☕️
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A Bell 222 (think Airwolf) has crashed in Huntington Beach, California this afternoon. N222EX is well know to visit local car shows and charity events in SoCal. You can see the tail rotor start to change directions in the video and a fast clockwise rotation starts meaning tail rotor authority has been lost. This is the absolute worst time to lose a tail rotor. In forward flight you have a chance but near zero airspeed, it’s next to impossible to fly the aircraft out of it. Latest report is it was just the pilot onboard and he is alive with injures. Pray🙏 🎥sip this ☕️

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Why I never fly without wearing a hat...

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A Russian Ka-52 helicopter flying with a damaged tail.
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A Russian Ka-52 helicopter flying with a damaged tail.

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Hughes XH-17 "Flying Crane" heavy lift helicopter demonstrated in 1952 using what is to this day the largest diameter main rotor to ever fly
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Hughes XH-17 "Flying Crane" heavy lift helicopter demonstrated in 1952 using what is to this day the largest diameter main rotor to ever fly

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This is why you don’t cheat on someone who knows how to fly a helicopter. 🚁🍿
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This is why you don’t cheat on someone who knows how to fly a helicopter. 🚁🍿

AdanuKrizz 🫵🦅

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Are you out of your mind?! I understand you do not have a conventional tail rotor but why hover inbetween those light posts? 😳🫣 🎥 Chris Challinger
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Are you out of your mind?! I understand you do not have a conventional tail rotor but why hover inbetween those light posts? 😳🫣 🎥 Chris Challinger

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