j 99

1 of 2. If you are a boat enthusiast looking to get more information on specs, built, make, etc. of different boats, then here is a complete review of J/99. Built by J Boats and designed by Alan Johnstone, the boat was first built in 2019. It has a hull type of Fin w/bulb spade rudder and LOA is 9.94. Its sail area/displacement ratio 22.15. iq 99