P-47 Thunderbolt could be the official state aircraft in new House Bill P-47 Thunderbolt could be the official state aircraft in new House Bill By 14 News Staff | January 12, 2021 at 2:50 PM CST - Updated January 12 at 5:47 PM EVANSVILLE, Ind. (WFIE) - Indiana Representative Wendy McNamara will be introducing House Bill 1197 requesting the P-47 Thunderbolt âHoosier Spirit 2â be designated as the official state aircraft of Indiana. As you may remember, the thunderbolt âTarheel Halâ arrived at the Evansville Wartime Museum this past October and is being formally renamed âHoosier Spirit Twoâ in honor of the first P-47 produced at the Republic Aviation plant in Evansville.