A tiny black box for every modelBy Bruce Walker brucewalker711@gmail.com Photos provided by the authorAs seen in the August 2026 issue of Model Aviation.As an RC pilot, when I land, I always want to know how fast I flew, particularly with EDF jets. I want to be able to compare different airplanes, propellers, EDF fans, power systems, and even batteries. Of course, there are always bragging rights as to how fast I flew! Unfortunately, many of my airplanes—in particular, most EDF and BNF airplanes—do not have a means to record aircraft speed.There are a few traditional ways to measure…