on offer; sweet-flavored sato may be as little as seven-percent alcohol, but it packs a surprising punch. Sunday competition moves on to the launching of Bangfai, judged, in various categories, for apparent height and distance travelled, with extra points for exceptionally beautiful vapour trails Those whose rockets misfire are either covered with mud, or thrown into a mud puddle (that also serves a safety function, as immediate application of cooling mud can reduce severity of burns). While popular and entertaining, the festival is also dangerous, with participants and spectators alike occasionally being injured or even killed. On 9 May 1999, a Lan 120 kg rocket exploded 50 meters above ground, just two seconds after launch, killing four persons and wounding 11. Roi Et's festival Bang Fai Festival is traditional of Isan and Laotian peoples culture that could be found this festival throughout a country where living place of Northeastern Thai people. In Roi Et province have two places which widely known and favorite festival in term of the most number of Bang Fai Ei or Bang Fai decorated car in Thailand in Suwannaphume district. In Suwannaphume not only found the number of the most beautiful Bang Fai and the most number of beautiful Bang Fai parade dance by dramatic art collage student but also the only one community that made and Bang Fai decoration by a papers cutting technique call "Lai Sri Phume". In the other hand Roi Et province is well known for Isan peoples which the most favorite in term of originally of local culture with preserve traditional pattern of Bang Fai Festival and the most number of Rocket or Bang Fai in the world in Phanom Prai both are locate in Roi Et province. Today the beautiful Bang Fai float car which show in Yasothon Bang Fai Festival 8 in 9 float cars are made in Roi Et province ( At Samat District, Selaphume District, Thawat Buri District, et al.) and them rent form Roi Et more than 40 years ago. Bang Fai (the rockets) Jaruat () is the proper term for rockets used as missiles or weapons, but Bang Fai () skyrockets are gigantic black-powder bottle rockets. Tiny bottle rockets are so-called because they may be launched from a bottle. In the case of the similar appearing Bang Fai, also spelled 'Bong Fai' (), the 'bottle' is a bong (), a section of bamboo culm used