Translation by George Hoskins
The following drawings sum up the various firing configurations
used by the military and constitute the Theoretical Model allowing the
production of a well-contrasted UFO with no visible firing beam:
Clear Night

Case CN1
CEM:
Contrast Effect due to the Moon

Case CN2
CEM:
Contrast Effect due to the Moon

Case CN3
CECL:
Contrast Effect due to City Lighting

Case CN4
CEAD:
Contrast Effect due to Artificial Daylight

Case CN5
CEC:
Contrast Effect due to the Clouds

Case CN6
CER:
Contrast Effect due to Ground Reflection
Dark Night

Case DN1
CECL:
Contrast Effect due to City Lighting

Case DN2
CEAD:
Contrast Effect due to Artificial Daylight

Case DN3

Case DN4

Case ???
(This case is unfavourable but can be met possibly due
to errors in the data)
Daytime

Case D1
CES:
Contrast Effect due to the Sun

Case D2
CES:
Contrast Effect due to the Sun

Case D3
CEC:
Contrast Effect due to the Clouds

Case D3b
(This case is unfavourable and should never be
met)

Case D4
CEE:
Contrast Effect due to an Eclipse

Case D5
CER:
Contrast Effect due Ground Reflection