Does someone have a multiplier sheet that would give me an approximate length of finished models for different scales? I was never good at math. For an example, I am looking at a 220 foot long ship that is in 1/144 scale. If I assume a 1 foot length equals 144 feet in scale, I would think the finished model would be about 18 inches long, but the manufacturer states the completed model is about 11 1/4 inches long. What am I doing wrong?