Demystifying General Aviation Piston Engines: Exploring Crankshafts and Camshafts (Part 1)
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- Опубліковано 30 тра 2024
- Welcome to VSL Aviation, your go-to channel for all things related to general aviation! In this engaging four-part series, join Seth Lake, a highly experienced DPE and the owner of VSL Aviation, as he takes you on an in-depth journey into the fascinating world of general aviation piston engines.
In this first installment, we dive deep into the intricate workings of crankshafts and camshafts, two essential components that power these remarkable engines. Seth's expertise and passion for aviation shine through as he breaks down the complexities, providing a clear understanding of how these vital components function together to drive the aircraft's propeller.
Throughout the video, Seth employs an approachable teaching style, making complex concepts accessible to aviation enthusiasts of all levels. Whether you're a seasoned pilot, an aviation enthusiast, or simply curious about how these impressive machines operate, this series is a must-watch.
Stay tuned for future episodes as we explore other critical aspects of general aviation piston engines. Don't forget to subscribe to VSL Aviation for more captivating content that educates and inspires the aviation community. Get ready to take flight with us!
You rock, Seth.
Minor correction, if prop/crank is at 2000rpm the cam is 1000rpm, not 4000; bigger gear is on cam and idler. Great video that should help a lot of peeps!
Yes, I misspoke and need to pin a correction. I thought I had edited out most of that but I guess I missed one. It's a 2-1 reduction in crank speed. So for every 2 rotations of the crank the cam only does 1 rotation.
As a fresh pilot who doesn't have the strongest mechanical background, this content is invaluable! Looking forward to the rest of the series.
Thank you for the feedback!
What an amazing story teller, I went to an A&p school and this was worth a semester of recip lab class. You are a blessing to the aviation community.
Thank you for the kind words!
Finally somebody made a video that actually shows what a lot of pilots pretend to know. Thank you very much and continue the series if possible.
It's already done! The next two episodes will be on the channel over the next weeks.
Total underrated Channel! Thanks for your Service!!!!! Loving this Series. Greetings from Germany!
Sehr erfreut!
Very well done, Seth. I've been a pilot for a couple decades now and already know most of this, but it took me a lot longer than 20 minutes to learn what you've just shown in this video. This is fantastic for both new and experienced pilots. You're removing the mysteriousness from one of the most critical components of our aircraft and greatly adding to the collective knowledge resource pool for general aviation. This information can save lives. I'm eager to watch the rest of the series and will be recommending it to other pilots. I wish I had something like this to watch when I was a new pilot. On behalf of the general aviation community, thank you for your efforts.
Thank you for the thoughtful feedback! It's good to hear!
Wow! Never knew about the bearing, how it functions, and why oil pressure is so critical. I will never ignore my oil pressure gauge again!!! Thanks Seth!
Glad I could help you discover something new!
I really enjoyed that and look forward to the others. That will make you think a few extra times before you enter a flying club agreement.
Hey Seth.. you the man. Thanks again.
You're welcome!
Very good visual demonstration.
Great series Seth, would be great to see all systems broken down like this. Even with a strong mechanical background it really tied it altogether for me with the aircraft.
Great to hear. The electrical system is already being worked on. Hopefully I'll have it released by the end of the year!
I'm in A&P school and this was extremely helpful..I found your video after completing a project we did having to do measurements on a crankshaft to make sure they were all within .0015"...I just wanted to know more about how this whole system works. I def just subbed your channel :) Thanks so much for posting
Awesome! You're welcome!
Thank you Seth! Best explanations-by far. Viva VSL!
Thanks!
@@SethLakeDPEIn all seriousness thank you Seth. Part 2 helped me really get an understanding of the importance of oil level and how catastrophic debris could be. The Guam flight was a treat, it’s been a long time since passing through there. The coffee portion of the float plane episode was solid. All the best to you and yours!
Excellent! Thank you.
Aircraft crankshaft is forged first to the rough shape and then final machining operations are done. It is not machined from single block of steel as you state.
Thank you for the correction. Sorry I missed that one.
Great vid. Much better and easier than all those poorly made 3D animations.
Thank you! Good to hear that.
Great set of videos. Almost as good as seeing / handling the real thing. Thank you!
You're welcome!
Thanks for this! I have an Engine Recip. test next week and this helps alot!
This video is super detailed and well explained. Thanks for sharing!
You're welcome!
Ed Kollin being interviewed by Martin Pauly....just YT search it. Ed's creation is the best kept secret in aircraft engines. Even a skeptical Mike Busch of Savvy Aviation was impressed and that is saying a lot.
The amount of corrosive acids your engine produces with the combustion process is mind boggling. Anyone who owns a plane should seriously consider Cam-Guard. Thanks Seth and welcome back from your Micronesian air tour! Spent 25 years out there flying for Continental Air Micronesia (Air Mike). Using the automotive version of Cam Guard stopped a couple of leaks I had in their tracks (rear main and timing chain seal) on my 2001 Accord.
Thanks! I've used Cam-Guard before but haven't seen this interview. I'll check it out! It's good to back!
Good videos
Thanks!
Thanks for such a detailed video. Really helpful!
Awesome!
Great video! I look forward to the rest of the series.
Excellent! Keep up the good work. I know most of this stuff already, (born in a hangar basically) but this is VERY important for the rest of us! You might cause someone to commit aviation of some sort.
Thank you!
Great video.Thanks
You're welcome!
Awesome! Learned a lot as a current student pilot…..thanks from KPWA
Awesome
This is fantastic Seth, every pilot and especially every airplane owner pilot should watch this. Can’t wait for the rest!
Stay tuned! At least three more episodes. If these are useful I'll probably do a few more on engine accessories.
Great video Seth. What a great idea to make a series about the powerplant using a disassembled engine to truly show the inner workings. Far better that any other video I have seen on the subject. Keep up the excellent work. Safe skies 🇺🇸🛩️
Thank you for the feedback! Glad you enjoyed it!
This is a great and much needed series, Seth! Thank you!
You're welcome!
Thanks for this deep dive. I'm curious about the pressure sensors at each bearing and how they relate to the reading at the oil pressure gauge. Does the gauge show the reading of the sensor with the lowest pressure?
There is only a single oil pressure transducer in the engine, no one for each bearing. To quote Thomas Sowell: "There are no solutions. There are only trade-offs."
This especially applies to aviation. More pressure sensors would increase complexity which would decrease reliability. One is good enough, but knowing there is only one pressure sensor is good information for a pilot when dealing with a abnormal situation.
@@SethLakeDPE Ah, I was confused by the comment at around 16:50. Thanks for the clarification. I have my PPL and IR, but haven't flown in 15 years due to life circumstances. I'm trying to soak up as much as I can before getting back with a CFI, so thanks for the great content!
Just so know one else has to pause the clip to do the quick math, and for an idea of what those numbers look like:
I believe that's 276,000,000 rotations for the outer lobes VS 552,000,000 for the double duty loabs..
Avg 2300rpm over just 2000 hrs.. wow!
I train at a flight school that's pretty kool (aircraft, maintenance wise etc.)
But to Seth's point, the fact that idk what other pilots may have missed (myself included not being aware of what he just explained, until now)...
As it relates to all of us different folks (of varying exp levels) hopping in and out of the plane, flyin all around, and doin who knows what up there...
I'll def be one to share this clip with others, so that we All can help each other keep safe, and be that much more conscious of that OP Guage when scanning.
Great info bro, love the content 💪🛩👌
Thanks for doing the math! The double duty lobes are definitely a contributing factor of decreased horsepower on older engines.
@SethLakeDPE Np Seth! Keep these awesome clips coming! Invaluable information for sure 💪🛩
@SethLakeDPE could you please explain how many "rotations" a camshaft makes vs. a crankshaft please? Much appreciated. Regards!
It's a 1:2 ratio. The camshaft revolves once for every two turns of the crankshaft.
Thanks! I've seen many car engines apart but never an airplane engine in such details, very interesting. BTW, I though crank is cast first in a form to a rough shape and then machined to fine specs 1:30 ?
You might be right actually. I'm not sure if it is cast and then machined or just machined. I'll do some research. Thanks for watching!