Posted on July 1, 2021September 28, 2022 by John Beans Dude Perfect Has a Field Day with AltimeterThree AltimeterThree and its iPhone app play referee for five best friends and their rockets. These guys clearly know how to have fun, and that’s probably why they have millions of viewers. Post navigationPrevious post: Chute Release and Water RocketryNext post: Research into Creating Effective Rocketry Courses