Recent content by David Nolan

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    Where should I buy a model engine CDI ignition.

    I understand, is it possible to get ignition systems with no advance or retardation. I want and engine that fires 'effectively instantaneously' when I tell it to. I suppose one could rotate the hall sensor via some sort of mechanism to counter the delay but I'd prefer if I could just buy it...
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    Where should I buy a model engine CDI ignition.

    Thanks Dave, Appreciate the info. It's basically a prototype engine, I eventually plan on putting it on an ultralight aircraft. But that's a bit down the line. I want to get a functional engine first. Can you explain what is meant by ignition advance, that means there is a delay between the...
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    Where should I buy a model engine CDI ignition.

    Where should I buy a model engine CDI ignition? So, I'm making an engine, I want to know where to buy a CDI ignition system, with the hall sensor, and battery pack. Looking for a very small one. I'm based in Ireland which is an EU member state, so anywhere trading out of the EU would be ideal...
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    How to measure the speed of a small spring without resolving to formula's

    How to measure the speed of a small spring without resolving to formula's So, I need to know the speed of a small spring, I've tried my usual method of deducing speed which is recording it with a camera and going through the image frame by frame and deducing speed that way. However this spring...
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    Material choice for combustion engines and the limitations of homemade engines

    So, I thought I was pretty experienced when it comes to machining, I naively thought that one day I could even build an engine that I could use to power my ultralight aircraft. I've learned a lot since then and am now significantly less arrogant but also significantly less confident that my...
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