Ah, the wonders of Fox racing...

There are two major flavors of Fox racing:

1)  Fox 35 Stunt and a 300 sq inch profile model  http://www.nclra.org/Rules/NCLRAFoxRace.html

2)  Fox 35 Stunt and a Goldberg Shoestring, Buster, or Cosmic Wind (the roughly 360 - 400 sq in models)  http://www.nclra.org/SouthCentral/index.html

Of course there are sub-variants under each of those major groupings.  For instance, in group 1 there is http://www.nclra.org/Rules/SSR.html  The difference being it allows any .25 engine (LA 25, for instance).  In general, the LA 25 is an easier engine for the beginner pitman to handle than the Fox 35.  Especially when hot.  Basically, expect the rules to look the same at first glance but to have local detail differences.

If you are looking at this as a local event, find as many sets of rules as you can and pick the ones you like for your group.  It is counter-intuitive, but to a point, the more restrictive the rules (everything stock, including the tank) the more likely no single team will dominate based on equipment.  However, there are two problems with absolutely stock everything.  Defining what stock means and many folks don't have a stock engine.  For instance, all of my Fox 35 engines have been modified over the years.  Not for more power in a racing sense, but modified just the same.  So you need to keep the needs of your local group in mind as you settle on the rule set you adopt.

If you are looking to pick up an event to have something else to fly when you go to a contest, contact the folks that organize the contests you attend to find out what their local rules are.  No use traveling a couple of hundred miles to find out you model doesn't meet their rules in some way.

Most of the time, models in Group 2 will fit into the the Group 1 rules.  Since we are talking a Fox 35 Stunt powered model, if that is the case go ahead and enter.  You won't be at that bad of a disadvantage.  That is basically how the event is run in Denver.  We advertise the NCLRA Fox Race and everyone shows up with some variation of a Foxberg racer.  Everyone gets in some racing and has a good time.  Which is what we are after.

Dave

  Rootbeard,  Give me a call on the Ma Bell on this subject.  I got some stuff that can help you.
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