Tuesday, September 18, 2007


P mags

My P-mags arrived fresh from Texas. I had ordered an E-mag and a P-mag, but since there were no E-mags on the shelf they upgraded my order to P-mags, at no extra cost. That's what I call customer care!

I have found it hard to find picture of e/p-mags bolted to engines, so I thought I would put a couple here. If you don't know what they are, go to this link. http://emagair.com/Index.htm

This picture shows the right p-mag. The first thing to understand is that unlike a conventional mag.., you can bolt it on rotated into any position you choose. The electronics takes care of the alignment.

In this second picture, you can see the green connector block, the manifold pressure sensor, currently covered by a shiny black cap, and just to the right of it, a LED, which is used in setup. (If it is hard to see double click the pictures, you will get a better view.)

In the third picture below, you can see the left hand p-mag. It is rotated nearly 180 degrees. I would like it further around, but the casing of the mag., interferes with one of the oil paths to the cooler. The slight disadvantage of it in this position, is the LED is somewhat hidden underneath, but no big problem.

In the fourth picture, below, you are looking down from above. As well as the major performance advantages of P-mags., and the weight saving, you can see that in the constrained area in front of the firewall of an RV4, there is a significant space saving.

(In case it confuses anyone, the control cable and hose across the bottom of the picture are just parked there while I work on the plane. This is NOT a final location.)

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