HEATKEYS

CAD Blocks FREE! Download FREE CAD Blocks from a variety of categories and CAD disciplines. Browse before you download as all of our CAD Blocks have detailed thumnail views!

GrabCAD - a free CAD model library with 2D / 3D CAD files available for software like SolidWorks, AutoCAD, Autodesk Inventor, Solid Edge, SketchUp etc.

Aircraft Blueprints, Aviation History.

RC Groups - the most active Radio Control model community: electric and fuel rc airplanes,rc helis,rc boats and rc cars. Features discussion forums, blogs, videos and classifieds.

Boat plans from Science and Mechanics and Boat Builder Handbooks. Plans for Hydroplanes, Sailboats, Inboards, Runabouts, Canoes, Kayaks and many other boats.

3D models for CAD/CAM/CAE designers. Cars, cities, airplanes and other polygonal and NURBS/SOLID models.

Find all the information you need to buy, build, and customize Radio Controlled Vehicles. Read reviews of the latest RC toys for all ages, RC cars, RC trucks, RC boats, and RC planes and helicopters. Learn how to get the utmost enjoyment from your ch...

RC Universe is the largest radio control website to buy, sell, trade and discuss rc cars, rc planes, rc helis, rc electric airplanes or helis, boats, radios and engines plus read our free online radio control magazine.

AeroRocket, source for AeroCFD, AeroDRAG, VisualCFD and other aerodynamics software.

homebuiltairplanes.com is a dicussion forum centered on homebuilt aircraft.

Welcome to ANSYS, Inc. - computer-aided engineering technology and engineering design analysis software products and services.

Find free downloads for supplier parts models, component models, 3D parametric models and supplier component downloads, including free CAD drawings, assembly models and full 3D CAD models. Use these free part models by dropping them directly into yo...