This is the Dummy Radial Engine for the AT-6 Texan ARF / from Top Flite (TOPA0965). / / FEATURES: Black plastic construction / Precise scale enhances appearance / / INCLUDES: One black plastic dummy radial engine / 18 pushrod tubes (1 3/8" each) / / REQUIRES: Hand Drill or Dremel Moto Tool / 1/8" Drill bit / CA-Medium GPMR6007 / 6 minute epoxy GPMR6042 / / SPECS: Diameter: 7" (178mm)