What is WB? I assume you mean WildFire? You would need to use Mechanica for that. But can't you take a SWAG (Scientific Wild Arse Guess) by doing some hand calculations?
Heckler
Sr. Mechanical Engineer
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(In reference to David Beckham) "He can't kick with his left foot, he can't tackle, he can't head the ball and he doesn't score many goals. Apart from that, he's all right." -- George Best