ORIGINAL: spbyrum
You might try checking old Nats results. I did the work to document the Curare after I found it listed on a British site which showed top 5 equipment for every World Championship since 1960. Hanno flew it in the '75 WC.
There is a bit of a move to early 70s planes in SPA right now. As mentioned in another thread, there is also a good bit of modification done. That we allow 4 strokes has kind of changed the game. Some compromises have been required to meet sound levels necessary at many fields. Usually this means stretch the tail a little to help the balance. By rule, the builder can do the tips and some other things to suit himself and landing gear can be either trike or taildragger. The idea is to keep the plane approximately the same size as the original and to keep the looks the same, too. We've allowed some slack because we don't want to get in a situation where we are checking planes to see who's been naughty and who's been nice.
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I have a Goldberg Senior Falcon ARF that I have thought about flying in Antique Class. I learned to fly multi on a kit built Senior Falcon in 1969. After the first flight, I went home and modified the plane for better handling. My first mod was to remove the stock ailerons and double their chord. I have the same intention on the new Senior Falcon ARF. The model flies like a B-36 with the stock ailerons.
I have read a few written remarks about another fellow flying a Senior Falcon and whose "flaps" are controversial. I wonder if he did the same thing that I am thinking about doing and this is what those comments are about?
I'll be lucky to fly this model in more than one SPA contest, therefore, I don't want to be stuck with a model that handles like a turkey for the rest of the year.
I also wish they would increase the displacement limit for four-strokes in antique. A Saito .82 would be more appropriate for a model such as the Senior Falcon or Astro Hog than the current limit of .70, which pretty much dictates that you use an OS engine. I like OS engines and have a bunch of them, but sometimes you just need to run a Saito for best performance.