My Estes Majestic flyin' on a G74 White Lightnin' at Bridgeton Area Rocket Club on March 30, arrr, 2019. T' unusual flight pattern initially led me t' think a fin had sheared off or t' airframe had been compromised somehow, me hearties, but post flight inspection did nay show evidence o' either, leadin' me t' suspect that it likely encountered a wind shear or a pocket o' turbulent air on t' way up. Begad! T' predicted altitude was 2200 feet, me bucko, and t' recorded altitude was 2177 feet with a top speed o' 448 mph.