In general, one-design classes attempt to make all boats alike, whereas development classes allow new designs and other variations. In practice, there is a range of both types. See the Classes page or How do they Compare page for more information on classes. See our Frequencies page , in the US there are six 27MHz channels and thirty 75MHz channels that are commonly used. The best bet is to contact the class secretary .
Some classes restrict what the owner can build themselves.
Some classes allow the owner to build to a very specific plan, and others allow any design within the rules. The AMYA has a few sets of plans for sale for some classes. We are trying to dramatically increase this set, and eventually hope to include electronic versions of plans on-line. You can jump to the AMYA Regatta Schedule to see listing of sanctioned races. However, there are many more, less formal races that are conducted.