The British-designed, but now Bentonville, Arkansas manufactured GameBird GB1 received its FAA Part 23 type certificate on Wednesday. The GB1 is certified for unlimited aerobatics—plus or minus 10G. To be certified to that staggering load factor, a GB1 airframe was tested repeatedly to plus then minus 11.7G, with three trips to plus and minus 16G, culminating in a test to 19G with the airframe heated to 160 degrees to soften the carbon fiber—all without failure.
Source: avwebGameBird GB1 Certified for Sale in US