My new book

[JulianEdgar]

I have just published a small book.

Note: everything in it has been either mentioned here or in my videos on YouTube.

The reason I've done it is that it covers, in one easy reference, a lot of techniques that I've developed over the last year that are not in my Veloce aero book.

So it includes:

- using a pitot reference pressure when measuring aero panel pressures (much better than the 'reference tank' approach I previously used)

- the new smoothing circuit for measuring ride height (and so downforce and lift) - cheap, easy and accurate

- the throttle-stop testing of changes in drag (vastly better than coast-downs, but best for cars having mechanical throttles)

There are lots of examples of real-world testing using the techniques with results, graphs, pics, etc.

It's available here.

[freebeard]

A library condensed to a book condensed to a forum post.

"- using a pitot reference pressure when measuring aero panel pressures (much better than the 'reference tank' approach I previously used)"

In a concurrent thread, a graph shows pressure along station lines. Aren't those pressures dependent on air speed, with the relative magnitudes scaling from ~25mph to near transonic?

[Vman455]

That graph is, I assumed, coefficient of pressure, which should be close to constant. (I'm also assuming I'm thinking of the same graph, which may not be correct! The "guess which car this is" thread, right?).

[JulianEdgar]

...and the video.

(No so loquacious as normal - I've had dreadful hay fever and am full of drugs for it.)

https://www.youtube.com/watch?v=3zsgvY9tlC4