Well, it is done. It took about two months, but I finally finished my Sig Kadet LT-40 with an OS .46 AX engine. I took it up to the club I am joining on Saturday and went through an inspection of the plane. There are some things they don't tell you in the instruction manual. For example, you need to use "keepers" (about 1/8" strips of silicone fuel tubing) to make sure the clevises don't come unsnapped in flight. You need to make sure that the control rod for the nose wheel does not bind so that you get equal throw on the rudder (you can fix that problem by simply moving the control rod guide to a hole nearer the nose wheel), etc. We spent about 2 hours going over the plane and tuning the engine. The engine is really responsive. I can go from a very slow idle to full throttle instantly, and there is absolutely no hesitation. Slam stick it back to idle and not a burp or a belch along the way. I learned that one of the tests to see if the engine was tuned properly is to go to full throttle and then firmly hold the plane and move it into a straight up orientation. When we did so, virtually no change in RPM (maybe a very slight increase). Because the keepers were not in place and because the instructor who I met at the field had another student that he spent most of the morning with and because I got there late (lost the battle of the blankets!) we were not able to get it in the air. That will be next week.

Now my question. I can see that I am going to require a field box. I have seen some I really like. For example, Sig make a Field Boss which seems to be very nice. I like to do woodworking projects when I am not busy being a lawyer. I was wondering if anyone knows where I could go to get plans or information or guidance on how I could make my own field box.

As always, thanks for the help.