Art, KB9MZ wrote:
"You can`t ever discard the factor Q in any discussion with respect to
antenna efficiency or any calculation for that matter."

Kraus writes in his 1950 edition of "Antennas" on page 299:
"The Q of an antenna, like the Q of any resonant circuit, is
proportional to the ratio of the energy stored to the energy lost (in
heat or radiation) per cycle."

(in heat or radiation) are Kraus` words, not mine. It means the R of the
antenna used in the Q operations is formed of the sum of Rr+Rloss.

Efficiency is Rr/Rr+Rloss

The Q=X/R, where R is the sum of Rr+Rloss.

If R is heavily weighted toward Rr, the antenna is efficient. If R is
heavily weighted toward Rloss, the antenna is inefficient.

Q as an indicator of efficiency is baloney.

Best regards, Richard Harrison, KB5WZI