Kentucky in Lexington, Kentucky Specifications (OH-58D) See also References Footnotes Citations Bibliography Holley, Charles, and Mike Sloniker. Primer of the Helicopter War. Grapevine, Tex: Nissi Publ, 1997. . Spenser, Jay P. "Bell Helicopter". Whirlybirds, A History of the U.S. Helicopter Pioneers. University of Washington Press, 1998. . World Aircraft information files Brightstar publishing London File 424 sheet 2 External links OH-58 Kiowa Warrior and OH-58D fact sheets on Army.mil OH-58D armament systems page on Army.mil Kiowa Warrior Mast-Mounted Sight (MMS) Sensor Suite on northropgrumman.com Bell aircraft Bell OH-58 Kiowa H-58 Kiowa 1960s United States helicopters Bell OH-58 Kiowa Aircraft first flown in 1966