If flown from asphalt and built light, I guess a 12 pounder would do, but it is a pretty large aircraft.
The smaller Jurassic DD has a wingspan of 52".
The prototype flew about one and a half year ago, I think. You have not seen any in the US, because It has not got any publicity
in other than german magazines, and have not been marketed in the US. There are also relatively few
who thinks of buying a full kit, with balsa fuse for jet use?

Hey Michael!
Your American flag looks great, except that short canopy you have put on it. I think it needs to follow Dirks original lines,
and go all the way forward to where the nose begins to slope.
I made my own canopy, and tried to get the "Gripen" look on it.

Lars