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Recent content by SpiderMann

  1. SpiderMann

    Estimation of Moments of Inertia

    Great, thanks guys! That's a lot more info than I had, so that's cool. I've got a call in to my old Physics Prof. so if that yields any more useful information, I'll post here first. Thanks again, -Spider
  2. SpiderMann

    Estimation of Moments of Inertia

    ---EDIT--- Sorry, the units are slug - ft^2. Thanks.
  3. SpiderMann

    Estimation of Moments of Inertia

    Dave, You are absolutely right - the example calculation is severely flawed (sorry about that). Lets try this again - This is the formula I originally started with: MOI = EmptyWeight * (D^2 / K) Where: Pitch Roll Yaw D = Length (feet) Wingspan (feet) 0.5* (Length+Wingspan) K = 810 1870 770...
  4. SpiderMann

    Estimation of Moments of Inertia

    Hello Dave These are calculations for a simulator I've been working with that is dependent on the MoI's for proper flight handling characteristics. I require an MOI for roll, pitch and yaw referenced to the three standard aircraft axes. I think you are correct in your assumption that I need the...
  5. SpiderMann

    Estimation of Moments of Inertia

    Greetings! I need some help estimating the moments of Inertia (MOI) for an aircraft that has no published data. The information I do have is: Weight(34000 lbs), Length(62.1 ft), Wingspan(44.5 ft). The way I understand it, in theory, these are calculated by summing the product of the mass of...

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