[Towertalk] 40 meter antennas

[Carl - WC4H]

Has anyone ever built any version (1, 2 or 3 elements) of the short 40 meter
yagi in the ARRL Antenna Handbook?

OK... don't laugh... Compared to all these commercial 40 meter beams it may
not stack up, but I have limited space and am currently using a vertical on
40.  I'm planning to install a 50 ft tower (currently I have a 40 ft) and I
want to put a directional antenna for 40 on it.  I can not have an element
lenght over 19 ft for various logistical reasons.

I was considering building a 2 el verion the the one in the handbook.

Thanks
Carl
WC4H