Thor Agena B Transiton Adapter BT-60 to BT-52

This is part is intended for the original Thor Agena (# K-27 ) from Estes, and adapts to BT-52 Body Tube-based parts for the Agena upper stage.This transition is  scaled from the documented measurements according to ROTW reference book by Peter Alway. The Estes Model Rocketry Custom Parts Catalog is  commonly in error for  both BT-52 diameters  as well as length. Therefore it can be deemed a more accurate repesentation than the original part.