There are just a couple of acronyms that are used in the descriptions, so any references to BT is regarding Body Tubes and CT refers to Coupler Tubes. 54mm is used as a general term for the basic size rather than an absolute measurement. The parts here are available in thin (Mach1), normal Wildman) and heavy (MadCow) wall thicknesses for coupler tubes. If you have any questions or a special size requirement, please contact SMT Designs on the Contact Us page. I will adjust diameters of parts for you given your measurements for no charge other than the normal product price (only caveat - non-returnable unless I made them wrong).
The photo shown is a hybrid 54mm bay for a dual deploy altimeter bay. The bay includes an arming switch accessible through the rocket's wall from the outside, a tray with two modular slots - one is the Altus Metrum EasyMini carrier and the other is a nine volt carrier), charge canisters and shock cord ties.
The DD (Dual Deploy) End Cap is a 5.9mm (0.23") thick cap with a 2.38mm (3/32") shoulder. The end cap is used on the removable end of a bay and attaches to a mounting ring.
The RDD (Redundant Dual Deploy) End Cap is a 5.9mm (0.23") thick cap with a 2.38mm (3/32") shoulder. The end cap is used on the removable end of a bay and attaches to a mounting ring.
The 54mm End Cap Bay Stop is designed for both dual and redundant dual deploy bays and allows for the use of a motor retainer on both ends of a tubular bay.
The 54mm Fin Holder is designed to hold a single fin in place while the root tab is glued in place whether it is a through wall or air frame surface mount.
The eye bolt tie kit is a factory assembled part that can be used to replace a damaged eye bolt assembly or as an upgrade for a hybrid bay with kevlar ties.
The Hybrid Bay Kit is a complete set of SMT Designs parts that can be assembled into fully functional electronics bay (customer supplies coupler tube, device, & battery).
The Captured Modular Nosecone Bay Kit is a complete set of SMT Designs parts that can be assembled into a fully functional module for the supported devices and batteries listed (customer supplies device and battery).
The Standalone Modular Nosecone Bay Kit is a complete set of SMT Designs parts that can be assembled into a fully functional module for the supported devices and batteries listed (customer supplies device and battery).
