Licensed pilot with 24 years experience witnessed 3 white cylindrical objects flying in triangle formation past JetBlue flight during approach to Jacksonville International Airport. Objects were 20-25 feet long, car-width, with no wings, rotors, or exhaust. Smooth rounded fuselage, flying 75-150 feet above tree line. Duration: 10-15 seconds. Witness contacted control tower and naval station. NUFORC considers witness exceptionally capable and credible.