Not when the configuration is drastically different. "Scale" has a very specific meaning in engineering. It's like saying a motorcycle is a 1/3 scale version of a car just because it uses the same motor. It still demonstrates that the heart of the vehicle works, but it's not a scaled version of it.
Here's an actual scale model in aerospace: https://www.youtube.com/watch?v=GHz2B_4g2tM