Hi All I wrote... > As the spiracle is only of similar size it will pass less atmospheric > air, thus the flying ability of an enlarged bee is even more seriously > affected This should have been As the spiracle is only of similar size it will pass less atmospheric air than is required by the larger muscles of the larger bee, thus the flying ability of an enlarged bee is even more seriously affected... Regards & Best 73s, Dave Cushman, G8MZY http://website.lineone.net/~dave.cushman or http://www.dave-cushman.net Short FallBack M/c, Build 6.02/3.1 (stable) -- Visit www.honeybeeworld.com/bee-l for rules, FAQ and other info ---