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Calculating momentum of inertia
Right i was wondering if its is possible to calculate the momentum of inertia of a propeller??.
The moment of inertia of a propellar would be fairly easy to calculate, you'd just calculate the moment of inertia of one of the propellar arms and then times that by the number of arms there are that make up the propellar. The propellar arm could be modelled as a thin uniform rod being rotated about its end and I'm sure wikipedia will have a full table of moments of inertia for such constructions. You can even calculate it if your handy with maths:
So total I would be if the propellar had N arms.
So total I would be if the propellar had N arms.
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