North American T-39A Sabreliner From August 1968 until early 1973, this T-39A Sabreliner was assigned to Bergstrom AFB, Texas, in support of former President Lyndon B. Johnson as he traveled to and from his ranch in nearby Stonewall. Originally designed for a crew of two with four passengers, this T-39A was retrofitted with a special VIP interior to accommodate six passengers and three crewmembers. Following President Johnson’s death in January 1973, this aircraft flew as a test bed for advanced avionics and communication equipment as part of the SPECKLED TROUT research and development program. Nicknamed “Speckled Minnow” due to its small size, this T-39A continued to serve as an executive transport for many government and Air Force officials until its retirement to the museum in October 1984. TECHNICAL NOTES: Engines: Two Pratt & Whitney J60-P-3s of 3,000 lbs. thrust each Maximum speed: 538 mph Range: 1,700 miles Ceiling: 42,000 feet Weight: 15,218 lbs. Click here to return to the Presidential Gallery.