No doubt this is the the best engine systems explanation I have seen. The picture serves as a great memory aid, even for us older guys.

I can’t believe how well explained this is. I would never have gotten this much information just by reading. Kudos Cpt Hollman

When I saw the drawing literally everything clicked in. Best vid on systems👌

Thank you Captain. Best lesson I've seen to date.

Perfect for checkride prep. Thanks again Cyndy.

Thank you so much for re uploading Cyndy! You are amazing!

HANDS DOWN BEST EXPLANATION ABOUT AIRCRAFT SYSTEMS. THANK YOU.

I must say that your videos are in depth and easy to understand. Watching your videos give a very broad knowledge of each topic you lecture on. @Cyndy Hollman, I am so grateful for your tremendous work, thank you so much for your outstanding help.

This is an excellent video. I'm studying for my powerplant license and this is the best explanation of a reciprocating engine I've seen. Thank you for combination all the systems together especially in a drawing format.

Love your videos. Clear and to the point. Only note is that @<a href="#" class="seekto" data-time="1085">18:05</a>, black smoke from a car is too rich, oil burn is blue smoke, and white smoke is coolant burn (head gasket failure).

Here in the UK I have always been interested in aviation & as a youth was in the Air Cadets but cannot afford to learn to fly. I enjoy watching articles on KZfaq about people learning to fly or operating aircraft & have recent found this series. The explanations given by Cyndy generally but especially in this article has been so interesting & illustrative. Several KZfaqrs refer to testing the magnetos in their pre flight checks, having revolution drops outside parameters requiring "leaning" the engine but don't explain why. Now I understand. Thank you.

Thanks Cindy - your videos have helped me understand many flying related topics - Kudos to you!

Wow! Thank you Capt. Cyndy how clear and very informative your lecture, I love the way you explain.

Excellent. Thank you very much for your clear, easy to understand tutorials.

Excellent video. Every student pilot needs to watch this one!

Thank you once again Cyndy, I love your vidoes and constantly come back to watch them. Hope all is well.

Cindy is doing the Lord’s work! She is doing a great job explaining the instrumental control relationship to the engine function!

Very smart instructor. You’re the best I ever had. You deserve an award

Another fantastic video. Much appreciated

Extremely helpful, thank you very much. I watch these videos before my each ground school class, in that way my ground school classes is very easy to understand 🙏

Thank you captain. Those who have you as an instructor, are truly lucky. amazing explanation.

This is CLASS!! Shortly and simply put, yet so detailed. Glad I watched the video. Explaining the engine, I learnt so much that i wanted to know about; ...........the function of some of the gauges that I dint understand while simming! Thanks alot and keep feeding us!

This video is amazingly helpful. Thank you for such a well-planned, through exploration. I am not a ‘mechanical’ person, but I feel so much more comfortable with this topic now. I’m going to dace this video to watch before my checkride.

I have a check ride in one week and this was immensely helpful! Great video, thanks.

thanks cyndy! Your videos are always the best.

Amazing! Simply amazing!

Great job Cyndy. Clearly explained

Thank you for doing such a detailed video. This really helped.

Very very clear and good terminology for us who do not know deep English. Regards from Namibia 🇳🇦

Amazing explain , actually she covers oil sys. Electrical s. Fuel s. In addition of engine system, were helpful thnx for this wonderful video.

Great explanations of these vital systems! Thank You.

has been waiting for this so long!!and thank you soooooo much !!!!!

Amazing engine systems explanation for sure. Thank you so much

This was the best explanation of an engine I have ever heard. Thank u

I HONESTLY THINK YOU ARE PHENOMENAL PILOT, INSTRUCTOR AND PERSON. THANK YOU SO MUCH FOR EXCELLENT DETAIL IN YOUR LESSONS. YOUR AWESOME

This really helps with my aircraft power plants class thank you

The best teacher in the internet

I learned a few things in this video. I've had my ppl for 6 years and i had no idea about the idle screw or the idle related points. Very cool. Thanks for the info!

Thanks for your upload and very interesting topics. Always well explained and developed.

I love this Topic, thank you Cyndy

thank you so much Cyndy. Today i had to present for CFI training Task C(III) Operation of systems from the PTS and i explained your schematic. It was really helpful for teaching purposes.

Great explanation!

Hi ma’am, I really do appreciate your videos, thank you so much.Keep teaching us.

Love your videos

Thank you for your engine systems talk, returning to flight after some time.

You´re amazing! Extremely helpful! Thank you so much !

magnificent video. Thank you!

Excellent instructor.

this is the best video of the engine I've ever seen. Comprehensive, to the point, and very clear. And you only have it in 2D!! 😃

Great video.

You are a fantastic instructor thank you

Awesome video!!!

I was taught that the alternator charges the battery, but it also provides power to the electrical system during flight. The battery is used for starting and if the alternator isn't on.

Your lesson clear many doubts..thanks

I'm going for my commercial rating and found your videos extremely helpful in understanding all the private pilot basics. Hoping you can someday make videos that covers landing gears, turbocharged engines, and oxygens :)

Awesome, thanks. I'm doing CFI across the runway from you.

Thanks Cindy!

Wonderful. Thank you.

Great video, Thank you.!

Excellent explanation, thank you very much;)

Omg I love this woman!! Ty

So informative!

I was assigned hw for ground school but it wasn’t in my AFH. This was so helpful.

Great lesson s

Good job! Just a slight correction recommended: It is conductive heat from exhaust instead of “radiant heat”.

Just wow!

woow , thanks cyndy

You’re the best

very GOOD may you give us some information about clerance valve check

Your first entry into my pilot's log was on Valentine's Day...Cyndy...The Amelia Earhart of S.C.

Perfect

This is supper helpful. Thank you. If anyone here knows how the primer fits into this picture please let me know. Don’t know if it takes place around carburetor or in the cylinders.

One take, boom! Machine!

Damn!!! I just realized it was the carb icing that keeps causing my engine to fail in Microsoft flight simulator

thanks for u u realy greatfull

An excellent and clear description of the basics but I found your sketch of the crankshaft and cylinders to be confusing. I've just checked a picture of a Lycoming O-235 crank and it clearly shows the front and rear crank pins on one axis and the middle two crank pins in the opposite axis (like most 4-cyl cars). Your sketch correctly shows opposing pistons at equal heights (essential for dynamic balance) but omits the staggering of the cylinders which brings the con-rods to bear squarely on the crank. I was a little disappointed about the lack of detail concerning the oil pump, filter and pressure relief valve, likewise the camshaft drive and gearing. As an aside, the camshaft has only six lobes rather than the eight one might expect, as two of the lobes double up to serve push-rods on both sides. Try another sketch and it should all fall neatly into place. I appreciate your sketch may have been intended more as theoretical representation than actual engine layout, but I hope this helps.

Fantastic! One thing though: carbon monoxide poisoning often happens without you noticing. So is there a warning-gadget monitoring the CO level?

Thanks for the excellent video, @CyndyHollman! Can I ask: Where exactly are the fuel pumps placed? Some Ground School materials suggest they are near the wings (fuel tanks), others suggest closer to the engine. Do they differ based on the aircraft model? #cyndyHollman

No mention of camshaft/valve actuation. Also I am only familiar with automotive, not aviation. In automotive black smoke indicates an issue with valve seating or fuel mixture. Blue smoke indicates problem with piston rings.

You never said where the accelerator pump gets fuel from to inject at a fast rate for a go-around.

Great video, but in the summer isint the air density low, rather than high?

Hi Where are u located?

I do like the videos but I find this to be slightly incorrect when it comes the learning consequences. Peak of CHT occurs slightly after peak EGT, obviously that also depending on the engine parameters. Too much leaning will create roughness but not detonation due to excessive temperature. Lycoming IO360C1C6 LOP at EGT peak and ROP at 100F rich side of peak with CHT decreasing on the lean side of peak. TCM IO550 also has the peak CHT between 25 and 100F EGT on the rich side of peak.

Holly shit this is the best engine explanation viedo