This accessory is fixed to the first stage of a two-stage rocket built with an Estes BT-55 tube. It allows to couple the two stages and at the same time conveys the gases of the engine of the first stage by directing them exactly against the nozzle of the second stage. In this way the ignition of the second stage is safer even if the two engines do not touch each other directly.

The BT-55 Stager should be used with D12-0 engines in the first stage.

Bag of 3 pieces