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1nf_

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The majority of INS platform drift is from a thing called "tilt error" - where the IRS initially misjudges the exact direction of the gravitational vector during alignment. All this will do is improve the accuracy of the accelerometers but will still have the drift caused in the INS itself. How will this make such a large improvement over what we have already?

I was in Nazaré a couple of weeks ago and I loved it. While the waves were not gaint (100ft) they were around 20ft one of the days and this still really allows you to appreciate the power of the ocean. I really liked the town - nothing is better then cheap coffee and Pastel de Nata. It's certainly worth a visit there :)