The Giant Scale Racing Competition For RC Model Aircraft Provides Excitement Recreational aviation comes in all shapes and sizes, and the Unlimited Scale Racing Association (USRA) is one example of technology, aviation, and outright fun sharing the airspace all at the same time. According to ANN follower, Jeff Wheless, the USRA giant scale racing event held on October 13-16 in Victorville, CA proved to be a great success.
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