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I suspect that it is too heavy to have enough muscle power to achieve powered flight, but with a sufficient wing span, I imagine it could glide (if it threw itself off a cliff).

Assuming that the muscular build of the ostrich did not have to change in order to fly, therefore weight remains constant, the weight of an ostrich is 150kg, and under the caveat that the dataset might not be the best in the world:I did a small model with a stats program and using a simple linear regression analysis, it would appear that the ratio of wingspan (cm) to weight (g) is 108.14 + 0.011*weight (This gives an R value of 0.72, which considering, isn't too bad!). Extrapolating this regression gives the wingspan required of an ostrich to be 108.14 + (0.011*150000) = 1758.14 cm or 17.5 metres or nearly 60ft.KFO anyone?

Yes, there's a big trend towards ostrich farming. But how the **** do you plant them?

Quote from: dentstudent on 19/07/2007 09:25:16Assuming that the muscular build of the ostrich did not have to change in order to fly, therefore weight remains constant, the weight of an ostrich is 150kg, and under the caveat that the dataset might not be the best in the world:I did a small model with a stats program and using a simple linear regression analysis, it would appear that the ratio of wingspan (cm) to weight (g) is 108.14 + 0.011*weight (This gives an R value of 0.72, which considering, isn't too bad!). Extrapolating this regression gives the wingspan required of an ostrich to be 108.14 + (0.011*150000) = 1758.14 cm or 17.5 metres or nearly 60ft.KFO anyone?Even without the issue of increased muscle mass, you have to remember to take into account the weight of the now extended wings themselves.

Wasn't your average pterodactyl just a big flying ostrich ?

Is it reasonable to assume that pterodactyls hanged upside down ?

Quote from: neilep on 19/07/2007 20:29:54Is it reasonable to assume that pterodactyls hanged upside down ?They must have been pterrifying to see.