Tachyon T KV Micro Brushless Motor. \$ HOT · Tachyon T KV Micro Brushless Motor Tachyon T KV S FPV Racing Motor. The original tachyon profile in Eq. () is matrix valued, and its asymptotic behavior at $$r\to\infty$$ is the same as that of the single D0-brane. A tachyon is a particle with imaginary mass iµ (µ real . (). It follows from Eq. ( ) that the divergence in a′′/a at a = A corresponds to an infinite momentary .