These planes all have popoff valves, designed to prevent overboost, but the flow dynamics are such that manifold pressure can seriously overshoot redline before the popoff valve opens.

The national flags of Algeria, Bahrain, Indonesia, Malta, Monaco, Poland, Portugal, Ukraine and the Vatican City are all bicolours.

Until we have a system clearly established, entering more data is just busy work.

Another consequence of reaching peak oil is the debate it will surely provoke in the United States over whether we should avert the coming crisis by drilling in pristine lands and waters long considered off limits or by engaging in conservation and development of alternative fuel sources.