Browse Items (84 total)

[Men installing new engine in Learjet 23 prototype]
Photograph of men installing a new engine in the Learjet 23 prototype, February 21, 1964.Inscription on verso: "Installing new engine on Jet #1 / 2-21-64."

[Learjet 23 prototype undergoing fuselage side-bending test]
Photograph of the Learjet 23 prototype undergoing a fuselage side-bending test, February 25, 1964.Text on sign: "Fuselage side bending static test / 0% ultimate / 25 Feb. 1964."Inscription on verso: "T58-4A / 2-25-64."

[Learjet 23 prototype undergoing fuselage side-bending test]
Photograph of the Learjet 23 prototype undergoing a fuselage side-bending test, February 25, 1964. Text on sign: "Fuselage side bending static test / 0% ultimate / 25 Feb. 2964."Inscription on verso: "T-58-4C / 2-25-64."

[Learjet 23 prototype undergoing fuselage side-bending test]
Photograph of the Learjet 23 prototype undergoing a fuselage side-bending test, February 25, 1964. Text on sign: "Fuselage side bending static test / 67% ultimate / 25 Feb. 2964."Inscription on verso: "Gene Koenig / middle white shirt / T-58-4E /…

[Men conducting tests on Learjet 23 prototype]
Photograph of three men conducting tests on the Learjet 23 prototype, March 16, 1964.Inscription on verso: "Flight test instruction for ground test / T-76-3A / 3-16-64."

[Test fuselage of Learjet 23 prototype undergoing structure testing]
Photograph of the test fuselage of the Learjet 23 prototype undergoing structure testing at a Lear facility, March 17, 1964.Inscription: "T76-1B / 3-17-64."Inscription on verso: "Structure testing."

[Test fuselage of Learjet 23 prototype]
Photograph of the test fuselage of the Learjet 23 prototype at a Lear facility, February 29, 1964.Inscription on verso: "Overall shot of test fuselage / 2-29-64."

[William P. Lear with SAAC-23 mock-up]
Photograph of William P. Lear with a SAAC-23 mockup, circa 1961.

[Men working on section of SAAC-23 mock-up]
Photograph of men working on a section of a SAAC-23 mockup, circa 1961.Stamped on verso: "Grosskople."

[Men working on sections of SAAC-23 mock-up]
Photograph of men working on sections of a SAAC-23 mockup, September 29, 1961.Inscription on verso: "9-29-61."
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