Terraplane is a 189mm ducted quad that uses 85mm props (10mm bigger than standard Cinewhoop). It has low profile molded ducts for low drag, and uses larger 2207.5 2500kv motors for more power and authority.
Each kit contains 4 ducts and 2 sets of HQ 85mm hex blades.
3d printed parts (sold separately) include fpv cam mount, Hero tabs, and DJI antenna holders. You can print your own, files are here.