Hill, 'Unconventional Flying Objects: A Scientific Analysis'

Posthumously published analysis by NASA Langley aerodynamicist Paul R. Hill of how reported UFOs might fly.

1995 CE · 37.09, -76.38 · status: account

The account

Hill, a senior NACA/NASA engineer who had his own sighting, treated UFO reports as engineering data and worked out the propulsion, acceleration and effects they implied. It is valued as a rare serious engineering treatment by a qualified aerospace professional.

The sceptical view

Hill's analysis assumes the reports describe real craft accurately; if the underlying observations are wrong, the physics built on them is moot.

Sources

1. Library record (archive.org)
2. Wikipedia: Paul R. Hill