[Antennas] 40 meter yagi help

[wb8owx@fuse.net]

Hello group, need some info from you antenna gurus...building a compact 2 ele. 40 meter yagi...using alot of Cebik design ... making the driven element-director style on a 10 foot boom...spacing is .08 wavelength...element lengths are 13 foot and will be using mid element loading coils of some kind(yet to be determined)..anyone have experience with this design..figuring the impedance to be somewhere from 25 to 40 ohms due to the addition of the loading coils...any info would be helpful.. thanks  73   Tim  K8WBL