Thing I like about Outerzone is not only do they have US plans, but plans from other countries including UK. I didn't know how many wonderful and historic plans were available, the old Frog, Keil-Kraft, from just about every European country. Also they have captured the now long gone Japanese OK Model Pilot and Royal kits of yesteryear.
And who'd think, this plan from 1964 is as up to date today as it was then:
http://www.outerzone.co.uk/plan_details.asp?ID=6412
And this one from 1955:
http://www.outerzone.co.uk/plan_details.asp?ID=6414
We see electric Strykers flying today, but one of these at the field would turn heads still.