Altimeter Bay Kits for 54mm, 3.0 & 3.9 Kits include canvas phenolic bulk plates and forged stainless steel eye nuts.
The coupler/altimeter tubes are XX phenolic with a machined OD and a wall thickness of .075". The altimeter bays include a 3-D printed board. The canvas phenolic bulk plates have a step cut in the OD to provide a pr