Written by sigma on 09 June 2011
If you have been following our series on the aerodynamics of model rockets you have read that objects moving through the air are slowed down by aerodynamic drag. Objects with uneven or rough surfaces generate more surface drag and contribute to air flow over the object turning from laminar (smooth) to turbulent (rough). So do [Continue]
Written by sigma on 24 May 2011
In part one of this series we began the discussion on aerodynamic drag. We touched on the basics of drag, the formula for drag and left off discussing drag coefficient. In this article we will dig deeper into aerodynamic drag and air flow over a moving object. Parasite Drag In our first article of [Continue]
Written by sigma on 24 April 2011
For many of us starting in model rocketry getting the rocket built and into the air is the first challenge. We most likely will start with a kit, build the rocket as per the instructions, prepare the rocket for flight and then fire it off into the sky. That is certainly accomplishment enough, but have [Continue]