Photograph of the Learjet 23 prototype undergoing a fuselage up-bending test, February 13, 1964.Text on sign: "Fuselage up bending static test / 100% ultimate / 13 Feb. 1964."Inscription on verso: "T58-1-C / 2-13-64."
Photograph of a Learjet 24 aircraft (N247LJ) at the Lear Jet facility following its record-setting around-the-world flight, Wichita, Kansas, May 26, 1966. A crowd is gathered around the aircraft and several other Lear Jet aircraft are visible in the…
Photograph of five Learjet aircraft (visible tail number N804L) under construction in a Lear hangar, Wichita, Kansas, circa 1960s. Inscription on verso: "Learjets in hangar in Wichita / Photo courtesy Lear Archives."
Photograph of the LJ23 Automatic Flight Control System, circa 1960s-1970s. The components are described in the caption.Typed caption on verso: "[letterhead: 'Lear Jet Corporation / Photo Release'] Components that make up the new LJ23 Automatic Flight…
Photograph of the Lockheed-Sunnyvale 50 KVA System, circa 1960s-1970s.
Typed caption: "Lockheed-Sunnyvale 50 KVA System / Shown during final run-in with thermal instrumentation connected to inverters. (Reflections on front panel caused by temporary…
Photograph of a man working on the wing section of the Learjet 23 prototype, July 25, 1963. The forward fuselage section is visible in the background.Inscription on verso: "P3-E / July 25, 1963."
Memorandum to Lear Jet employees from Bob Hagan, Manufacturing Superintendent and Chief of Flight Test, October 9, 1963. Sends thanks and congratulations to employees for a job well done and shares highlights from the test flight of the Learjet 23.…