Can't find it

[jsup]

I found a page on this website which had a machine which allowed Dart engineers to see heads working under the operational environment of an engine, at 1000s of rpms. It was a box with high speed cameras.

Can anyone tell me where to find it?

[Dart Vader]

I believe you are thinking of our Spintron, which is talked about mid-way through this article in our encylopedia:
http://www.dartheads.com/ftp/Speed%20Flow%20Technology.htm

The machine is pictured at the bottom of the article as well.

[jsup]

yes, thank you