On Aug 19, 8:39*pm, Steve Leonard wrote:
I think the top two are both Ka-6s. *The first might be a Br, Cr or maybe
an E. *Notice the cutout in the elevator at the root. *Almost looks more
like the cutout on the all flying tail of an E. *The SZD-59 does not have
this big a cutout. *Other proportions are very much Ka-6.

The second is defintely a distorted image of a Ka-6, and not a Boomerang.
The Boomerang has a swept, all flying tail. *It is probably a Br or a Cr.