Retired aerospace engineer, extensive shop floor hands on, system & SW design, and AS9100 AEA with at home machine and woodshop capabilities, for FUN! I do all my own work, for FUN ! Bridgeports, lathes, welders, electrical builds, installations, and test. Installing dual Vetus BowPro thrusters on an old boat was fun! VSD drives and digital control with Dock Lock. I stopped at GPS positioning and hold.