# marketingu (blogs) — RSS Amplifier Recent posts from the 1 feeds in the RSS Amplifier directory that cover marketingu. Page: Feed: --- ## [I made an app for competitive hot air balloon pilots](/blog/i-made-an-app-for-competitive-hot-air-balloon-pilots/) _2025-03-20 · Patryk Kalinowski_ This is a fairly long story of why I built Balloon Navigator, what’s involved to fly with centimeters level precision when you can only use wind and how technology is shaping modern ballooning today. This is me (right) with my brother and a laptop for navigation. Table of contents: What the hell is competitive hot air ballooning? Flying with computers Principles Timeline of technology…