Quick Answer: The Three Dimensional Drag Models are a set of shapes for comparing drag: a plain sphere, a hemisphere, a dimpled sphere similar to a golf ball, a flat plate and a streamlined teardrop shape, all mounted on support arms.
Last updated: October 2026
Key Features
Plain sphere and hemisphere
Dimpled sphere with a surface similar to a golf ball
Flat plate and streamlined (teardrop) shape
Every model mounted on its own support arm
About This Product
Placing these shapes one after another in an air stream shows students how form and surface texture change the drag on a body. Comparing the plain and dimpled spheres, or the flat plate against the teardrop, makes the difference between bluff and streamlined bodies easy to see. The Three Dimensional Drag Models can be supplied on export terms to Timor-Leste, Botswana, Philippines, Belgium, Kiribati and Madagascar.