Magneto design.
Magneto design.
(OP)
Who's got the drop on magneto design info.
After watching Elliot Seguin's trials with the down lock failure causing his hydraulic pump cycle against a wall taking out his main bus, dropping the ECU and Fuel pumps... I feel a renewed desire to figure out a 5 cylinder magneto design. Something I can make with a laser (sheetmetal/laminations) and a CNC (billet parts). I'm thinking I can steal any coil from a slick or bendix, but not 100% on the electrical design stuff.
I'm sure someone has a WWII book that details the design pretty good.
After watching Elliot Seguin's trials with the down lock failure causing his hydraulic pump cycle against a wall taking out his main bus, dropping the ECU and Fuel pumps... I feel a renewed desire to figure out a 5 cylinder magneto design. Something I can make with a laser (sheetmetal/laminations) and a CNC (billet parts). I'm thinking I can steal any coil from a slick or bendix, but not 100% on the electrical design stuff.
I'm sure someone has a WWII book that details the design pretty good.
RE: Magneto design.
On the other hand you're asking about magnetos which are a quintessential piston-engine accessory.
Any way you get your inspiration... the first thing that comes to mind for you is Bingelis; Firewall Forward.
RE: Magneto design.
https://www.aopa.org/news-and-media/all-news/2019/...
Seems like the p51-miniature was a victim of poor system design and verification at several levels. How hard is it to put an ammeter into a circuit to verify the total electrical draw? Or just add up the ratings on the datasheets?
RE: Magneto design.
I was planning on using an automotive ECU that has never even heard of DAL. Probably a bad idea with me and only 2 other engineers to bounce ideas off of.
Magnetos... pretty simple. safer.
I'll check out Bingelis Thanks!
RE: Magneto design.
There is a little bit here
https://www.enginehistory.org/Accessories/Magnetos...
Edit
Found another good link
http://aeroelectric.matronics.com/Mfgr_Data/Magnet...
RE: Magneto design.
That chart right there says a lot.
I'm going to the same type of 4 and 6 mag tonight... pretty sure they use the same rotating magnet,coil,cap... if that's the case that table shows that 5 cylinders are still just using 2 poles, then the rest should just be some gear box mods.
Someone had told me a year or so about that the speed of the rotating magnet could really mess with the frequency or something. I have no idea if they knew more or less than I do.
RE: Magneto design.
https://resources.savvyaviation.com//wp-content/up...
From this I wonder if there is market for a little bit of electronics that detects random mag firing and indicates mag failure to the pilot.
RE: Magneto design.
My posts reflect my personal views and are not in any way endorsed or approved by any organization I'm professionally affiliated with.
RE: Magneto design.
The Magneto Ignition System - as used on Continental and Lycoming Engines... https://www.amazon.com/Magneto-Ignition-System-Joh...
Magneto encyclopedia - Magnetos 220 Service Manual https://www.jensales.com/products/magnetos-220-mag...
... This is a 968 page factory written reproduction service manual and would have been given to the dealer service shops back when your equipment was new.
Regards, Wil Taylor
o Trust - But Verify!
o We believe to be true what we prefer to be true. [Unknown]
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RE: Magneto design.
1. That's an unfair characterization of Elliot.
2. The TWERP program (Quickie with turbines) isn't the test program RoarkS is referring to. Suggest you look at the Titan Mustang program...perhaps it'll help you with context (and maybe even change your opinion about Elliot's abilities).