Project Isinglass
Project Isinglass was the code name given to two heavily classified, manned reconnaissance aircraft studied by the Central Intelligence Agency (CIA) as potential replacements for the Lockheed A-12 and SR-71 during the mid 1960s.
The first proposal under the Isinglass name, a high-altitude plane to fly at Mach 4 to 5, was considered an insufficient advancement over existing aircraft; the second, much more advanced design, sometimes referred to as Project Rheinberry, was an air-launched, Mach 20 rocket-powered boost-glide aircraft that would use a very-high-altitude trajectory to avoid defenses. This aircraft was considered too costly for development, and the project was abandoned in 1967.
Below, are documents received about Project Isinglass.
Follow The Black Vault on Social Media:
This post was published on February 21, 2015 4:53 am
Newly released Department of Defense records reveal the prolonged and often frustrating prepublication review process…
Newly released Federal Aviation Administration (FAA) documents obtained by The Black Vault under FOIA case…
Background The Central Intelligence Agency was created in 1947 with the signing of the National…
The Department of Defense (DOD) has released, in full, the exact text of the “Verbal…
A released Department of Defense document, obtained through the Freedom of Information Act, provides a…
Background Welcome to the FBI Files on Journalists and their Periodicals archive on The Black…
