There are those — including some former astronauts — who believe that NASA has kept quite a few secrets about UFO sightings and alien contact.
Read the book. You’ll understand the technology. They’re secret weapons deriving from experiments that go back a hundred years. You’ve heard of Ludwig Prandtl? Oscar Schrenk?
https://www.amazon.com/Intercept-UFO-Renato-Vesco/dp/B0006WI572
Document 4-13, Hugh B. Freeman to Chief of the Aerodynamics Division
[Elton W. Miller], “Boundary-layer research,” 18 April 1932, in RA file 201,
LHA, Hampton, Va
.
April 18, 1932
MEMORANDUM For Chief Aerodynamics Division
Subject: Boundary-layer research.
1. The purpose of this memorandum is to call attention to the lack of largescale experimental data relative to the boundary-layer problem and to suggest a
program of research which will provide information along these lines.
2. The field of boundary-layer control, in this writer’s opinion, offers greater
possibilities for the improvement of aircraft performance and safety than any other.
This is because the control of the boundary layer influences every important aerodynamic characteristic of an aircraft. The three most important advantages offered
by the control of the boundary layer are: (1) increase in lift, (2) an increase in the
angle-of-attack range below the burble, and (3) a decrease in minimum drag. The
first two advantages have been shown repeatedly by tests on small models, principally those of Oscar Schrenk in Germany, who obtained a maximum lift coefficient
of CL
= 5.0 and an L/D ratio of 50 by the method of removing the boundary layer
on the upper surface of an airfoil by suction.