The compass was delivered on time and was exactly what I had ordered. Compass was installed on a glare shield mount in a Grumman AA1-A Trainer and works perfectly.

Flawless

This was an easy install and an exact replacement for the original compass in my aircraft. It compensated easily and is as good as it gets for a whisky compass.

Real good for the price. Deviation was off by a degree or two except on 120 which showed a -6 degrees which was configured on to the deviation card that came with it. Electronics in the plane may be the cause of such a deviation. Easy install. Does not come with dash board bracket. I recommend this if not wanting to spend the $200 extra for the best ones.

I am sure the compass is worthy of a 5 star rating, but there are other problems. The literature says it comes with no compass card or card holder, we need to order those separately. So I did. The compass did come with a card holder and card. But the edges of the card holder are crimped so tightly that the card and protective plastic will not fit into it. Also the screws holding the cover plate on the compass, which I expect are to be used to attach the card holder, have such big heads that there appears to be no way to get the card in place. There is also a third hole in the middle of the holder, and an extra screw, which will not screw into the center hole in the compass. It should be relatively simple to attach a card holder to a compass, but perhaps I am overlooking something?