In an inertial frame of reference let numerous standard rockets that load synchronized standard clocks place on all the space lattice. Simultaneously the rockets start to move with same intrinsic acceleration to the same direction. In other words there exists a common instantaneous inertial frame of reference to all the rockets. May I understand it as a description of uniformly acceｌeｒating frame of reference ? If so I worry Rindler coordinates cover only part of the frame of reference. Is it OK?