NACA Technical Library (PDFs)

General information about the Wing42 Lockheed Vega.
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NACA Technical Library (PDFs)

Post by Tailspin45 » 06 Jul 2018, 22:57

A treasure trove, and it's keyword searchable!
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Re: NACA Technical Library (PDFs)

Post by Jarek » 07 Jul 2018, 00:04

Nice!!! Found something I was looking for. A graph for 1340 that shows how spark advance affects CHT. Plus many other data. ... rt-612.pdf
This was the second method described by P&W patent to reduce head temperatures (in addition to using rich mixture). They experimented with a thermostat that was connected to magnetos to automatically control spark advance. But in this case we have a manual lever for that.

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Re: NACA Technical Library (PDFs)

Post by Vitus » 07 Jul 2018, 08:34

What an amazing find, thank you for sharing!
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