You can race that in Q mono, Q Offshore or any open class. It's too long to run in any P class, length limit of 34" is the max. The self righting feature generally would be prohibited, however at the club level your CD may allow it. It could also be taped off and covered if someone were to raise a stink. Additionally it may be allowed in a 4 cell class for club racing, but it would not be allowed for a national level event or records event.