Set contains 3D-Printed parts to build 1 engine "Pratt & Whitney R-2800". Applications: Brewster XA-32, Breguet Deux-Ponts, Canadair CL-215, Canadair C-5 North Star, Consolidated TBY Sea Wolf, Convair 240, 340, and 440, Curtiss P-60, Curtiss XF15C, Curtiss C-46 Commando, Douglas A-26 Invader, Douglas DC-6, Fairchild C-82 Packet, Fairchild C-123 Provider, Grumman AF Guardian, Grumman F6F Hellcat, Grumm