Loved this and I had to grin when I saw this u2 all decked out with modern avionics but there is still the piece of yarn as a “yaw string”.
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I had to look up Yaw String (thank you for the unexpected bit of education this morning). I bet that is not just ordinary yarn, it is FAA Certified, Mil Spec Yarn.
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Considering the fact that there is an NSN (national stock number) for almost everything in existence I’d not be a bit surprised to find out they ordered it instead of bringing a sample from home.
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This is promising for anyone interested in hot foil stamping!
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