Recent content by telebender

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    Force exerted by aircraft dive brakes- where did I go wrong?

    Many thanks for your help on this Jay, I didn't even consider that the book might be wrong! Now that's cleared up I can move on without worrying that I've misunderstood the basics. really appreciate it, ed
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    Force exerted by aircraft dive brakes- where did I go wrong?

    Hello, Thank you for your reply. The answer of 16.62KN from my last post is from the book I'm working out of. The answer I arrived at was 65.9KN which is why i posted here. https://www.physicsforums.com/attachments/35372 I have attached my attempt at a free body diagram here. The...
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    Force exerted by aircraft dive brakes- where did I go wrong?

    Homework Statement An aircraft of 5000kg mass is diving vertically downwards at a speed of 500 knots. The pilot operates the dive brakes at a height of 10 000m and reduces the speed to 325 knots at 7000m. If the average air resistance of the remainder of the aircraft during the deceleration...