Unlocking the Last 20%

“A leader’s inspiring story of incredible accomplishments in the face of daunting obstacles. But instead of self-congratulation, Air Force test pilot ‘Cinco’ Hamilton’s humility and thoughtful gift for capturing and communicating valuable lessons on life make Unlocking the Last 20% an essential part of any future leader’s library.” —General (Ret.) Stanley McChrystal, former U.S. Army Commander and Bestselling Author “From fighter jets to spaceflight to building a business, I’ve seen how discipline and vision create extraordinary outcomes. This book, told through remarkable and unforgettable stories, captures those same qualities and makes them real for anyone ready to pursue greatness.” —Jared Isaacman, Astronaut, Commander of Polaris Dawn, and Founder and CEO, Shift4 “A wonderful look into giving your all … Everyone should learn through Hamilton’s perspective and personal experiences.” —General (Ret.) Lori Robinson, former Commander, NORAD and USNORTHCOM “Each chapter in Unlocking the Last 20% draws you in, but it’s the way the book builds—story after story—that makes it unforgettable. By the end, the lessons hit harder, the stories dig deeper, and you can’t help but walk away ready to reach your true potential.” —James “the Hacksmith” Hobson, Inventor and Global YouTube Creator

Tucker “Cinco” Hamilton is an inspirational leader whose journey from high school dropout to a top national security expert exemplifies discipline, leadership, resilience, and transformation. A former fighter test pilot and Air Force officer ranked in the top 1% of his peers, Cinco has flown over thirty aircraft and led aviation’s largest flight test organization. He spearheaded groundbreaking advancements in AI for the Department of the Air Force, and his work has saved countless lives through innovations in autonomous systems. As founder and CEO of STEM-ED, a 501©3, Cinco empowers young minds through the Aerospace Robotics Competition. He shares his insights globally, inspiring audiences to realize their full potential.

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