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P-61 Black Widow: Best WWII Fighter to Ever Fly?
The Northrop P-61 Black Widow was the U.S. Army Air Force’s first dedicated night-fighter, featuring innovative radar ...
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Can You Install Metal Roofing Over Shingles?
If you want to install steel over asphalt, your best choice for installing metal roofing is to use a steel shingle system like the one shown instead of the more common (and more expensive) standing ...