It is a model nearly the size of the old rules 65 cm F1D. Competitions are held in 21' low-ceiling basketball courts across Romania. At the Romanian national championships, F1Max and F1D are the only two events flown.
Most intriguing: 15 g minimum weight, 5 g maximum rubber, VP allowed, and ROG (rise off ground).
Go to Indoor News and Views for details. Thanks to Aurel Popa for the information.