RE: What is a
The cd does not have to be a turbine CD, only has to have a general cd status and a waiver. They loosened the standards.
The waiver is designed as a weed out system and it is seriously flawed. I can fly a j3 cub with a turbine on it called a shockjet to get my waiver, then everyone thinks its ok I fly an f-18. But try to fly the f-18 first and we have a problem. Hmm.
But anyways that is what it is and what it does. Hope that helps.