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ì©«¥Ñ ray375 ©ó 30-5-2008 11:42 µoªí ¸¦æ³t«× 298km ºâ¦Ñ´X. ¤@¬[¨®³£¥i¥H 407km °Õ.http://youtube.com/watch?v=vT0ou-ZEcx0
SR-71 blackbird can also reach 3800 km per hours too, but is a for a personal use to fly should be fast enough at this stage. but don't forget there isn't any protection for that pliot, so if the speed too fast may hurt that person, I believe technology we have t oday should able to make it faster.