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Thank you sir ❤❤❤

Is this saying the Engine is "More Efficient" but develops "Less Power" (Thrust) ?

What will the angle of advance be with the aircraft stationary but propellers running?

My wife is Irish 🇮🇪🍀, thanks this video🥹.

Thank you!

great video....

Great content! What book do you recomend to read about this subject?

Incredible video! 👏 Thank you. Im a visual learner.. i hate the fact that I can't visualize the concept. Its like I have no imagination..... But instantly clicks when I see it. Good grief. Taking my fire detection block test today.

👌👌👌👍

Super

When the apu is ready to provide electric power to the aircraft but the aircraft does not need electric power from the apu, is the apu disconnected from the apu generator to prevent the apu from providing electric power to the aircraft? I would like to know how electric power from the apu is regulated per the demand from the aircraft. Thank you.

If I wanted to optimize a propeller for static thrust, like the fan in a wind tunnel for example, would I then use the V0 value to calculate the resultant relative wind for setting the AOA of my blade elements?

Thank u ❤

It's not obvious to me that the point of max LD ratio is most efficient, do we not have to take induced drag into account in propellers?

THUMBS UP

Hello! Can the method on 4:48 be applied at 50% of the radius? or 25% of the radius?

Great video. You explained it really nicely

Thanks. Was very helpful

13 years on and this has just helped me massively for my POF exam ! Thankyou 😊

Thank you!

Can you please reference the book you got this from

Good explanation, but you've got the magnet attractions backwards. Opposite poles attract, and like poles repel.

Please, can someone explain. If efficiency = 50% then a = 1 and V0=2V. If efficiency = 80% then a = 0.25 and V0=1,25V. Why air speed after propeller decrease while efficiency of propeller increase?

I spent a while looking for a good explanation of this. This is a great explanation! Thank you!

Hi, It was very good but sound is very low, please fix this issue thank you.

Thank you for explanation

Hands down, the best explanation of how an AC motor works! I'm a visual learner and that was clear as day!

❤❤❤❤❤very good

Edited: I wrote a comment here but I went through your second video and it's clear, you go for max thurst while I am interested in lift. Thank you.

What? North pole arracting north pole?

1:39 Can the flow speed go beyond Mach 1 just by using a converging nozzle?

Hard to find this information, thank you man, would be amazing if you could record again the audio

Hello Sir..Many thanks for this presentation... Appreciate your efforts.. I have a doubt.. At 2:05 , you have mentioned that the oil mist inside the bearing compartment cannot go past the labyrinth seal because of the low pressure inside the compartment caused by the pressurised airflow going inside through the labyrinth seal knife edges .... Is it technically okay to say that, "the oil mist cannot go outside through the labyrinth seal knife edges due to the continuous supply of pressurised air coming across the knife edges"... I'm taking the reference of the general property of a fluid where the flow of fluid in a particular direction is prevented in the presence of another opposing pressurised fluid flow...Can we omit that pressure differential phenomenon while explaining the oil sealing capability by only using the above mentioned property of fluid...Is it technically correct? Kindly pardon me for any mistake in my question. Thank you Sir!

thanks, i was going to claw my eyes out playing flyout

The day we start doing that on rocket engine turbines we can probably lift a skyscraper tall rocket.

sir your vise is not clear

Anybody watched young sheldon and watched this?

When use of air-cooled turbine blading began, General Electric favored film cooling whereas Pratt & Whitney favored convection & impingement cooling because they use less compressor bleed air, the turbine blades are simpler & cheaper to manufacture, there are no film cooling slots to clog, and the turbine efficiency penalty is lower because the blade cooling air is exhausted parallel to airflow.

Thank you sir🫡

Awesome video!

Very well explained. One point; the magnetic flux lines generated by phase 1 and phase 2 are separate fields and when you find the resultant, then it ends up with one magnitude and a direction that you showed. Additionally, if you increase or decrease the frequency you increase or decrease the speed (RPM) of the motor, and if you increase the number of pole pairs, you get the capacity the have more current draw and so resultantly produce higher torque. As I read on Quora; frequency is speed, current is torque, and voltage is the capacity to create torque.

Nice bro 👏 It was a detailed derivation

This one is great

Hello roddy thanks for information. Can we find thrust with this information?

What is CD zero ? Is it the same as the CD value?

Well done! Timeless classic!

"North attract north, north repels south" I can't understand it

So, if you connect only one pair of winding to Line, and you spin shaft with hand, probably low torque could run when magnet got self internal power of spinning ? Thats interesting. Finally i understand why start winding with cap is needed

Very clear, many thanks!

great video, cleared up all my doubts. thanks