RAM® Ball Base for Crown Work Assist® - D Size RAM-217U Both of the double socket

Both of the double socket arms have 1

5" base that contains the universal AMPs hole pattern to attach the holder

short double socket arm with jam nut

The RAM-B-108B-STRAP40 is an alternative mounting base for aircraft such as the Bonanza or Beech with a “throw over yoke”

This solution enables the quick and effective deployment and retrieval of your transducer

RAM® Ball Base for Crown Work Assist® - D Size RAM-217U Both of the double socketThe Crown ball base contain mounting holes aligned to work with Crown Work Assist clamp accessories. The addition of the RAM mounting system allows you to position your accessories for the best access and prevent damage due to shock and vibration.