Art wrote:
"On the other hand you can verify that the requirements of equilibrium
is preserved within Maxwell`s laws and thus antenna computer programs
such that the tilted vertical is not removed from the subject of
antennas."

The preceding confusion not withstanding, surely you must have aligned
antenna elements to vertical or horizontal positions to maximize signal.
I`ve done so countless times while optimizing microwave paths.

Terman quantifies (look it up for the math, Art) signal degradation
caused by misalignment on page 923 of his 1955 opus. I`ll extract one
sentence:
"It will be observed that the quantity
(E cos psi cos theta) is the component of the field strength which has a
wavefront parallel to the antenna and is polarized in the same plane as
the antenna."

The programs Art refers to don`t contradict either Maxwell or Terman.

Best regards, Richard Harrison, KB5WZI