Assertion: certificate's purpose | /r/HasProperty | to test new design concepts
Facets:
Source sentences:
text: Other operations specified by the Administrator 21.25, 21.185 Multiple Multiple airworthiness certificates 21.187 Limited Aircraft with a "limited" category type certificate 21.189 Light-Sport Operate a light-sport aircraft, other than a gyroplane, kit-built, or transitioning ultralight like vehicle 21.190 Experimental Research and development — an aircraft whose purpose is to test new design concepts, equipment, or operating techniques