Kammala jumla mai zuwa: Intrepid wani balloon ne na gas na hydrogen ko aerostat da aka gina don amfani da Union Army Balloon Corps don dalilai na bincike na iska a lokacin yakin basasa na Amurka. Yana daya daga cikin balloons bakwai da aka gina don Balloon Corps kuma yana daya daga cikin manyan balloons guda hudu da aka tsara don yin hawan zuwa mafi girma tare da mafi girman ƙarfin ɗaukar kayan aikin telegraph da mai aiki. Shi ne balloon na zabi ga Chief Aeronaut Thaddeus Lowe kallon da
Yaƙin Fair Oaks.