One of the interesting aspects of the United story is how many people now report that they were bumped from flights, often with the excuse that there were weight problems forcing the removal. What a joke! The max takeoff weight of a B737-800 (not a particularly large aircraft) is 172,000 pounds or so. Well, if you manage to stay on the plane, here’s a fascinating piece. Excerpt: “Turbines are easier to get stable than compressors because the air is flowing to lower pressures (stall is less probable). But it’s very hot. The gas temperature is way hotter than the melting point of even the most exotic high temperature alloy.” Happy Easter!