Which Circus do you want to do? There were 2 paint schemes and numbers that year. It ran as the U-31 until San Diego when it was the U-00 and had blue sides. I have some from both. There are a couple of hull differences as well. The U-31 had a shorter hose and an inset transom. The U-00 had a longer nose and no inset transom as they were two different boats.
Ok well they both had small curved up little winglet type features torad the transom. The difference it that the U-00's transom except for small little supports attached under the verts was flat side to side. The U-31 had extensions on each side and then the transom was inset slightly. There were two other distinctions. The back of the cowl on the U-00 was vented with a vane in the center. The U-31 was smooth down the back of the cowl. Also the nose on the U-31 is much shorter. It only has a small part extending forward of the canard wing. The U-00 has a big honkin nose stickin out. Graphics wise they are very similar just a few minor differences. I've studies them quite extensively since I have a U-00 Circus and did the graphics for that one. I have done the graphics for all of the Circus boats since I have 2 and one that I was going to make the 79 with but changed my mind.
There isn't a vent/vain on my cowl...and I am not gonna modify it!
U-31 is it then. The pics hgatjens posted are what I am looking for.
This should be interesting since I have never done scale before. the F/G hull cuts down on alot of build time but my wallet still hurts! Haven't even gotten the hardware yet!