How Magneto Works | Simply explained for student pilots.
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- เผยแพร่เมื่อ 24 ก.ค. 2022
- MAGNETOS have been around for over 100 years. Magnetos are engine driven electrical generators that produce high voltage to fire the spark plugs in an aircraft engine. Find out exactly how they work, in this video.
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#flightclub #magneto #mags
I can't believe he does all this and still has time to fight the X Men
Lmao
That's the wrong kind of magneto.
he must not be a part 141 student 😅
when was his first appearance?
It's that anti-telepathy helmet. It REALLY gives him an edge...😉
Magnetos were also used in early car engines before the dynamo and alternator came to be. Very interesting stuff
Best description of a magneto i have seen.
It's important to test each magnetos separately. Expect 50 rpm drop off engine if magnetos operated individually. After that do not forget to switch back to both. Check and verify. Sometimes the engine switch can return to single magneto operation due vibration or if knocked by the knee etc.
Thank you, not just for this video but all the others you make. I've only recently discovered them, but i like that theres no waffle and straight to point but easy to understand. i wish you would make more
Thank you. More videos coming soon.
This is a concise and easy to understand explanation video. Great job. Thanks.
I see flight club video. I click. Always amazing videos, awesome animations and presentations. Thanks!
I see flight club video. I click. Always amazing videos, awesome animations and presentations.
This got me through ignition and starting systems!
Well produced and clearly elucidated. Thanks
Wow! What a superb video lesson. Crystal clear stuff ... many thanks. It must have taken some putting together. Having subscribed to your channel I'll be sure to watch your other offerings.
Thank you so much 😊
Don't forget that a Magneto doesn't Need electricity (unlike a Generator) from a Battery and will work on it's own! A redundant magneto system is wise 25,000 feet in the air😃
You can connect a generator directly. No need for a battery. For example you could use the AC ( like on a bike ) and distribute every lobe to a different cylinder and there have a coil on plugs for a shorter HV cable.
Both magneto and generator (alternator) are engine driven and they are the one that produces electricity. I don’t understand what you mean by “unlike a generator that needs a battery” ? Cuz a generator doesn’t need a battery, its engine driven
This was a well presented video.
Finally got it ..I passed my exams but it’s still helpful for me
Simply amazing !* Well done !*
Thank you very much!
Thanks for this short and clear lesson
Glad you liked it
I love these tutorials.
Please continue creating more contents like this, im gonna recommend this to my fellow students.
Will do. Thank you.
Thanks for the video helped with my a&p classes!
Great to hear!
this explanation is so simple and visually straightforward, it makes me want to cry
Tidy explanation. Keep the videos coming!
Thanks, will do!
thank you very much the explanation was very clear
You are welcome!
Thank you for another great and simple video! As you described at the end there are two magnetos - why is the performance better with two magnetos and why does the power drop slightly when I test the individual magnetos?
as the video stated there are 2 mags and as such there are 2 spark plugs per cylinder unlike a car where there is only one plug. having 2 spark plugs spaced within the head of the cylinder allows the air fuel mixture to be ignited more evenly/uniformly and therefore more efficiently ie more fuel is burnt in the cylinder with less waste and as more fuel is burnt you get a bigger bang and more power. the power drops when individual mags are tested because initially you are running on 2 spark plugs then testing you are basically earthing one mag which effectively stops that mag working so when you do the test you are running only on one mag and one spark plug and less power.
@@alianjohnson6035 What would be the thinking behind using one vs two on a flight?
This is either really good, or wrong, and I’m leaning towards really good. I’ve always been taught the reason for the capacitor or condenser is to stop the arc as mentioned but for the purpose of preventing damage and wear to the breaker points. But what this video stated makes good sense.
I’m pretty sure it’s the same reason. The arcing can cause the conductor to degrade because it generates a lot of heat because air has a high resistance. Maybe that’s what it’s referring to?
This raises a point that as an educator I have raised many times. For example, one of the industries I developed training in was heavy locomotives. The training was full of totally useless content about how the systems worked. Useless because it did nothing to train them to identify and resolve any issue that arose (if they could at all). I'll add that much of my life was involved in aviation.
0:38 *enough VOLTAGE will generate a spark. Sparking is a function of voltage, such as when shuffling your feet on the carpet and touching a doorknob. Arcing is a function of current, as illustrated at 3:40
Thanks these videos are so simple and well made !
You're very welcome!
Nice! Can you do capacitive discharge ignition next?
Thank you for the understandable video. It is so great.
So simple and effective. The generator at our cabin is a very old Honda one, and it no longer works as the spark doesnt show when pulling the cord. Now i know why
You can probably pull off that magneto and rebuild it using tools in your shed, then it'll be good for another however many decades.
I'd check the cable first though. That's a more likely failure.
Please do some videos about aircraft electrical systems( generator,alternator etc.....)
I'm waiting to watch, quick actions would be highly appreciated
I have ATPL exmas so please do it as soon as possible
Start reading your books
If it’s a small aircraft, pretty much the same, if even simpler than a typical car.
Very interesting and well done. I'm curious why aircraft use magnetos instead of an alternator/battery system, like cars have. Reliability? Better performance? Are aircraft spark plugs radically different from those you find in cars?
Magneto ignition means the engine keeps turning even if the aircraft has a total electrical failure.
Also, certifying anything new in aviation is an expensive process for a very small market, so piston engine technology lags well behind its automotive counterparts. Avweb has a pretty good video about the economics of the aviation engine market and how it has resulted in modern planes with space age composites and sophisticated avionics still using engines essentially identical to aircraft from the 60s
It's a reliability thing. You can lose the entire electrical system and still get spark.
That's why the entire ignition system is redundant as well. You have two magnetos, two distributors and two sets of plugs. That's a lot of failures required before you lose an engine.
In a modern car engine on the other hand, you have many single points of failure, any of which can leave you stranded by the side of the road. This is done for cost and weight reduction, which become secondary concerns when increased likelihood of engine failure is liable to result in loss of airframe, or worse - life.
This is also why fuel injection systems took so long to mass adopt (even though those were invented for aviation). Just like magnetos, carburaettors don't require any other system to be operational in order to meter and supply fuel. As long as there's fuel in the tank, that is 😅
Vacuum gyros (artificial horizon, gyro compass, etc. Notable exception being electric turn coordinators) run on engine vacuum for the same reason - if the engine is on, there's (partial) vacuum to drive them and you don't need anything else.
Same reason mechanical flight controls (cables and pulleys) are still a thing, and still preferred whenever practicable. Even in somewhat larger aircraft (such as the King Air). They require a bit more maintenance on the ground, but even if you lose all the other systems on the aircraft, as long as the cables are intact and control surfaces are free, you are in full control of the aircraft.
Having as many of these systems as possible be standalone and independent means that no one failure can bring an aircraft down. And ones that _can_ bring it down are *always* redundant. Boeing fuch ups notwithstanding.
@@StephanAhonenHell, a bunch of these engines still require tetraethyl lead in the fuel!
Good explanation
Thanks and welcome
I was expecting a breakdown of mutant powers, but this works too
I love that model T technology is still relevant
It’s the thing that keeps your spark plugs firing therefore keeping your engine on which is a lot better than it being off. That’s all pilots need to know.
Great video
Glad you enjoyed it
Please drop more videos! PLS!
Working on it. Thank you.
Amazing content. which course would you recommend me please. I want to learn after effect for mechanical animations. Thank you in advance
I recommend courses by Morgan Williams and Jake Barlett on Skillshare (not sponsored).
@@flightclubonlineThank you very much for the recommendation
Does the battery power a starter to turn the magneto which powers the spark plugs ? If not what turns the magneto to begin with ?
The battery is used to start the engine at the same time, all turn together.
You should know also that Magneto Discovered by Robert Bosch 1861 - 1942.
Interesting side note: That high voltage needed for spark ignition in modern engines is in excess of 20,000 volts
With car engines and their coils making upto 68,000 volts for high compression or high boost engines.
Even on a motorbike you are looking at 15-20,000 volts from a 6v motorbike battery.
When the spark happens in a region of calm air, the flame expands slowly. So we can advance the timing before max compression at TDC as the turbo spins up.
What program did you draw on?😊
Everything was done in Adobe After Effects. I can recommend an online course if you wish to learn it. Let me know.
Anyway
@@flightclubonline Amazing content. which course would you recommend me please. I want to learn it for mechanical animations. Thank you in advance
Mag = large. Neato = cool. And with the vernacular stepped back a generation or so... THE BIG NIFTY!
What is a spahk
Why are the gears plastic?
Did I miss the purpose of the magnet?
Dynamo . Yeah, I want EFI and lambda probe. I need electric first. Hand starting a propeller leads to injury
to be completley honest i still dont get it, especially with the voltage spike, but great video nonetheless
When you have the closed circuit, there's a lot of energy accumulated in the magnetic field of the coil that is created by the current flowing. When you open the circuit, that energy has to go somewhere. With nowhere to go in the first circuit, it can only discharge through the other coil (since the first one is now an open circuit). Energy can be delivered either through current or voltage. By the way it's designed, the other coil favours to discharge the energy through voltage. This results in a spike which reaches differences in potential enough to make the air in the combustion chamber break down and let current flow through the massive voltage. Imagine a massive pump delivering a massive pressure spike through a narrow pipe. The pipe blows up. That's the spark.
It's like a water hammer, but for electricity.
but it does not say what happens when applied to my knees.
why not use alternator like in a car?
I am willing to guess weight and complexity. Also it needs to work in any conditions of weather, altitude, temperature and atmospheric pressure. I am willing to bet these requirements are not satisfied by an alternator, although I can't say how.
I’m surprised distributors are still used and not electronic ignition.
electronics tends not to deal well with extreme temperatures, and you get those a lot in an airplane.
@@StefanoBorinimil spec electronic survives where humans die. Military jets also hvac their computers. Use tubes?
I think one of my magnetios
Forty fifth
Miniature timed taser, if you've ever touched it accidentally, you'll get what I mean.
The terms in this are mixed and contradictory. Please, don't pay attention to the actual terms. "High-voltage electrical current" is not a thing. Current is measured in amps. Voltage is its own measurement.
Fair point. Thank you for clarifying.
Thee is a distinction between a current driven by a Van de Graff generator and a current driven by a car battery. If you want to drive a current through a high-resistance path like air, then you need a high voltage. In this video there is no need to measure the current, so no mention of amps.
This explais how he beats wolverine so easily
This was grade 9 auto class
MAGNETOS are NEAT-O.
{I said it, and I'm NOT taking it back...😊}
First
😂
Second
that heavy breathing in my headphones.. just can't do it
I'm taking the commercial checkride and failed the oral because the examiner I guess wants me to be an A&P. I guess I need to know how to overhaul an engine too. Does anybody know a DPE that isn't on a Nazi power trip? They know how badly you want to pass. You hand them $800 and they say you failed. Come back and pay me another $800. Next customer. Bunch of Cartels is what they are.
Are you trying to get your A&P ?
My suggestion: Talk with some other applicants, and their instructors, to see if this is a common occurrence. If it is, then contact your FSDO and report his actions. I realize that there is also his side of the story, but if he is not conducting practical exams in accordance with the appropriate ACS (or PTS if applicable) I am sure the FSDO would like to know that information.