Browse Items (25 total)

Telegram to William H. Cook, Sr. from his son, William H. Cook, Jr., March 19, 1939. Responds to Cook, Sr.'s previous telegram about the crash of a Boeing 307 Stratoliner during a test flight on March 18, 1939. Cook, Jr. states that he is okay, as he…

Letter to Mr. and Mrs. William H. Cook, Sr. from their son, William H. Cook, Jr., March 27, 1939. Addresses the crash of a Boeing 307 Stratoliner during a test flight on March 18, 1939 and describes the ongoing investigation and impact; Cook's boss,…

Manuscript titled "A brief history of airplane surface controls and the means of actuation at Boeing," written by William H. Cook, Jr., August 30, 1985. Addresses different flight control surfaces used at Boeing and the development of new ones over…

Telegram to William H. Cook, Jr. from his father, William H. Cook, Sr., March 19, 1939. Requests a response from Cook, Jr. following the crash of a Boeing 307 Stratoliner during a test flight on March 18, 1939. Cook, Jr. was supposed to be aboard the…

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.…

Photograph of a test dummy used during Lear Fan testing, circa 1980.

Photograph of a test dummy used during Lear Fan testing, circa 1980.

Photograph of the testing setup for a Lear Fan mock-up, circa 1980.

Photograph of the testing setup for a Lear Fan mock-up, circa 1980.

Photograph of the testing setup for a Lear Fan mock-up, circa 1980.