Eastern Slope Aviation Academy The Eastern Slope Aviation Academy was developed to fill a need in the Mount Washington Valley for focused, affordable education and guidance in aviation. ESAvAc is organized and registered as a 501(c)(3) charitable non-profit. About the Aviation Academy Learn more about the Eastern Slope Aviation Academy including our Mission & Vision and Board of Directors. Our Aircraft & Simulator The Eastern Slope Aviation Academy has a donated 1971 Grumman American aircraft in need of rebuilding and a Redbird flight simulator. We Need Your Support Through Membership and Donations, please help us maintain a nonprofit 501(c)(3) Education Foundation to provide education and mentoring for students and residents regarding career opportunities in the field of aviation.