The RCCA (Radio Control Combat Assoc) is an AMA SIG (special interest group). So, it works with the AMA on combat issues.

The RCCA has several classes of combat with different rules about engine and airplane size.

The .25FX is the most popular engine for Open B class combat, which allows up to a .30 size enigne. The Lanier plane you mention is designed for that class. I haven't flown one myself, but I understand that it's a pretty good design.

There are some RCCA guys in CO right now, so if you hold a contest, and want guys to come to your event from other clubs, be sure to go to the RCCA website and let people know about your contest.