*HELIKOPTER KELIKOPTER* KOPTER kopter…

Boa noite. Parabéns pelos demonstração, excelente. Poderiam me fornecerem os diametros do ROTORES, materiais das câmaras e dimensões gerais. Desde já agradeço. Att.Fernando Ferreira Ramos E-mail - fbr.epp@gmail.com Cel. +55 11 98728-3993

There are more parts in a piston aircraft engine, and the reciprocating motion of a piston engine creates an extraordinary amount of wear on the machine, causing vibration and eventually, damage. I'll take a turbine any day.

@@simplywonderful449 You are forgetting that the turbine engine has a slight rpm difference to a piston engine.

Smaller drones with simpler parts would fare much better.

@@tyronenelson9124 in a turbine engine you only have rotational motion, and all moving parts does it in the same direction and speed, well in coaxial compressors o turbo shaft you got 2 rotational directions, from mechanical moving parts perspective, a jet engine works like a charm copared to a piston engine

Sometimes I struggle tying my shoes

Good reason why GOD gave us 10 billion brain cells!

it was years of researching and adding parts to it ,and as time go they added more parts to improve and that made it so complex , it wasn't made at once .

Still not a proper Covid 19 shots!!!

Real rap

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You're welcome

The New Logo for Learn Engineering is good!👍👍👌👌 I have a suggestion for your Logo. You should design your Logo like Blueprint and Rough Engineering Sketches of one or more simple but interesting technological objects (such as Wind Mills, Solar Panels, Rockets, Electrical Motors, et cetera) and at the centre of them there should be written in block letters, "Learn Engineering". Thank you! 😊☺☺😊

We use Blender.

Learn Engineering turbine

Learn Engineering I will

Very nice Work.

John Ratko Sure you did. Sure you did.

John Ratko f

You all are gay

this is really going to guzzle fuel much more than the normal ICE right?

Yes, but gas turbines generally have a much higher power to weight ratio. For example: a Pratt and Whitney PW207D2 makes 610hp (455KW) for 248lbs (112.7Kg) a Mercedes AMG 5.5l V8 Bi-turbo makes 510hp (375 kW) and weighs 460lbs (209Kg)

REALLY WOW. when are the tours of your boyhood home?

mrlfixplanes great comparison!! but the power outputs of a turbine will be like 610hp at gazilion rpms compared to the reciprocating ICE at several thousand rpms...this means an idle at the traffic lights or normal street use results in super heavy fuel consumption..

Yes of course, that's why gas turbine engines aren't used in cars.

Absolutely the best presentation on the subject. Clearly illustrated and explained. Keep up the good work.

No

You'd never travel in an airplane if you'd know how it works. 😂

Actually, a heli is a better craft to be in should you lose power, as they can auto-rotate to nearly any surface. An aircraft like a plane must have a runway surface - flat and long - to roll to a stop, and you don't get much time to choose at all!

Kobe

Are you indian

@@krishnakanhaiya7161 no brother. I am pakistani!

@@nabeelk koi nhi, apna hi bhai ho. Hum india se hain. Lucknow (origin of urdu)

@@krishnakanhaiya7161 kiya baat he, bht bht dhannaywad.

i like it good performance in this animation good

blender, best thing, it's free!

MS Paint. :D

he must be using UFO software technology!

It's hand drawn on flip books.

* engines And only some (a few are piston ones).

They were coming to show you how the engine works 😂

Billy Goodman MEE TOOOO!!!!

It’d be even more ironic if it had a compressor stall

Aliveass, i clicked the video and a helicopter did not fly by my house

Avaneesh Tiwari Thanks, I thought they are not necessary. Rotor blades are airfoil shaped, so they would not need the hot air to face them at an angle

It's a case of counterintuitiveness. Yes the stators would hold back airflow but probably not as much as it would appear to. And they are necessary cos it makes the other blades so much more efficient that it more than off-sets the resistance of the stators (resulting in an overall advantage).

Marek Vedral Nice observation. We should see things critically to learn better. I myself am not an expert but I have studied a little and try to explain. The short answer is "the impulse turbine". In a turbine, pressure and velocity are constantly being manipulated to squeeze out as much energy as possible. The stator blades are shaped like nozzles and convert pressure energy to kinetic energy(speed). If you have no resistance you have no nozzle and you can't change pressure energy to kinetic energy. Now that we have kinetic energy we have to absorb it in the blades. The less kinetic energy we leave to the outbound air the better. For that they use the impulse turbine design. It is done by directing the nozzle jet at high angle of attack on the blade. To slow the gases down as much as possible. This way they are able to absorb more energy. Obviously there is much more into that. But that was a simple explanation.

Kieran Nurmi The two shafts are mounted to the engine casing by separate bearing housings. If you look to the top of comments and follow link to: AgentJayZ he explains turbine engines and shows this in detail

If the engine were built in a material that didn’t require cooling, it would make it staggering efficient regarding fuel consumption. Besides it would mean smaller engines for same torque compared with the existing ones.

@@viktjumper it would be so heavy it would not fly

@@A_Man_In_His_Van The intention is to use the same mass of material, but a material that has not been invented yet with amazing properties to resist the heat.

Fuel comes from a high flow injector at the base of the flame in their diagram. The air/fuel mixture is first ignited by a large set of what are basically spark plugs when the engine is first turned on. After this the burning fuel/air mixture stays lit in the same manner that a gas lamp does.

TheFlacker99 (Flak) every single engine is different from another, however most turboshaft engines can have the power shaft spinning at nearly + 10000 RPMs. Since the rotor blades have their tangential velocity under the speed of sound due to structural limitations and because of the airfoil principle, a gear box is necessary to reduce the RPMs to an average 310 RPMs which is the most common angular frequency for helicopter rotors.

Depends on the application. Most turboshaft and turboprop engines can have RPMs upwards of 15,000 rpms. As stated before, they are connected to a gearbox to reduce that output. Turbofan and turbojet engines can be over 25,000 rpms and don't require any kind of gearbox. Small model plane turbine engines that are generally centrifugal type jet engines can exeed 100,000 rpms.

Probably low propeller speed.

Compressor stall means more air going into the engine that it can handle and chokes on that amount. Just like eating to much. You can vent the extra air sucked in at the latter stages of the compressor. Variable stator blades do the same thing.

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Do you have a few million $ to burn?

Dave George. 52,000rpms in our jet ranger

I thought that

Its because there are two independent parts

I guess you missed the part where centrifugal effects of angular motion were explained.

It's a 7 stage Axial compressor, and a centrifugal. it's not backwards.

nope