Speaking of maths. Can someone help me with a problem I ran into today? Had a customer come in needing a plate for the step of his airplane showing the maximum weight capacity. The problem was trying to figure the circumference of an oval. I looked up the formula and came up with the same number he did, ~4.66. The dimensions are 1.73 wide by .81 tall. I tried a couple online calcs, but they were all over the map as to the solution. I even went to the step of cutting an oval that size out of plastic and measuring the circumference with a cloth tape, but got something in the 4.25 area. Thanks!