Tail Rotor Aerodynamics: Can live with them......Can't live without them.

Рет қаралды 7,700

Күн бұрын

The tail rotor requires a flapping hinge to compensate for dissymmetry of lift. By turning it 45 degrees, the flapping hinge name changes to the delta hinge. Watch the video to see how the delta hinge will benefit the tail rotor function.

Пікірлер: 23

@user-uh8iq8yp2z 11 ай бұрын

Excellent

@youchris67 Жыл бұрын

My God, the amount of wear and tear on those bearing surfaces from all the constant angle changes is incredible considering how fast that tail rotor spins and all the while flapping and changing pitch with each rotation. How often does an entire tail rotor assembly need to be torn down and overhauled completely?

@SHANNONLAUGHREN 2 жыл бұрын

Great video! Helicopter aerodynamics always fascinate me.

@MrSkidkicker 2 жыл бұрын

Thanks, you seem like a very intelligent fixed wing engineer. Maybe we should do a collaboration!!

@RC-Experimentalist Жыл бұрын

Very educational even for a guy like me flying RC helicopters for fun.

@morgansmith2020 8 ай бұрын

Slay

@AA5RB 2 жыл бұрын

ThankYou!

@GearTiger007 Жыл бұрын

very important knowledge,useful! thank you !!! we have the line contact conjugate bevel gear technical, i guess will be good for use on helicopter.

@Chinese-Food66 2 жыл бұрын

Hello! Your video is amazing and I want to share your video with my fan friends, ok?

@loganpooky7881 Жыл бұрын

Yodi gang

@sydneylaughren3053 2 жыл бұрын

my dad made me do this

@MrSkidkicker 2 жыл бұрын

I am so sorry to hear this. Maybe he secretly wants you to be a rotary wing engineer? Or maybe pilot?

@Ben-Dixey 2 жыл бұрын

Great video, nice to see how that delta hinge changes the blade angle. Do tail rotors generally run at the same tip speed as the main rotor ?

@truckerray7533 2 жыл бұрын

Most all helicopters will have a 5:1 to 5:1 1/2 gear ratio between the main rotor & the tail rotor. The tail rotor will spin 5 to 5 1 1/2 revolutions per one revolution of the main rotor!

@Ben-Dixey 2 жыл бұрын

TRUCKER RAY thanks, I was asking about tip speed rather than rotor rpm, the tip speed is a result of rotor rpm and rotor diameter and I find hard to establish the most efficient tip speed in which to run at. Calculations probably beyond my level.

@chippyjohn1 Жыл бұрын

@@Ben-Dixey Not stalking, but no, the tail rotor does not necessarily spin the same tip speed as the main rotor. Did a lot of calculations on this a while ago. With main rotors being most commonly around 200-220m/s tail rotors seem to be from 160 to 240 m/s. On average the tail rotors tend to be around 10% slower tip speed. Depends a lot on number of rotors, power and anti torque required, surface area drag from cross wind, diameter clearance etc. Basically there is no fixed correlation between main tip speed and tail tip speed.

@Ben-Dixey Жыл бұрын

@First Last thanks for that, makes perfect sense you have certainly done your research. 👍