Explanation of the engine systems within a piston aircraft. Thinking of becoming a pilot? flightschoolofg... As per request, new videos with better audio and video quality will be coming soon! Stay tuned!
I spent almost the whole day trying understand my engine and this video made everything click together. Hands down the best break down and explanation i've seen.
Love your videos. Clear and to the point. Only note is that @18:05, 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 RU-vid 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 RU-vidrs 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.
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.
except low wing AC are also gravity fed. She made a few small errors, but that was the biggest one. Also not all AC have carb inlets under the propeller.
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 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.
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 🙏
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!
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 :)
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.
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!
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.
Hey Chris, She is actually correct. All the items are powered from the battery. The alternator keeps the battery charge up so it gives the illusion the alternator is handling the load. This is why if the alternator quits all the equipment keeps working. This is because the battery is providing the power, and this eventually drains the battery since it is not being topped off by the alternator. Hope that helps to clarify...Fly safe
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.
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.
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.
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
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.
