Aero Magic

laser-cut_sheet1 No wind integrated_pitot_system_on_vuka

Chung-On-A-Stick Works! See the Demo.

This is a very basic demonstration of Chung-on-a-Stick’s ability to sense yaw and airspeed. The hair dryer doesn’t have a very wide airstream, but it still allows us to see how the Stick works. Chung-On-A-Stick is wind tunnel calibrated to tight tolerances.

Yaw and airspeed, by the way, are in the rightmost [...]

Virtual Elevation: Does Rotational Inertia Play a Role?

The method of Virtual Elevation and all its variants are derived from Newton’s 2nd Law for linear motion, neglecting rotational inertia terms.   Do those additional terms play a significant role in elevation-matching? Can we accurately measure the moment of inertia (MOI)? In this post, I’ll describe the terms and provide a [...]

VE - A Perl Script for Virtual Elevation Calculations

In trying to create a prototype for Golden Cheetah, I put together this perl script that I submit for your perusal.   The script comes with the sample data used by Robert Chung in his recent post to the Wattage Forum, so it may look familiar to many of you.

My aim was to match a known [...]