F-35B VTOL for 110mm EDF - Design and Build - RC Groups A flight controller running customized ArduPilot firmware, capable of GPS position hold, fully controlled transitions, and varying levels of assisted-stability flight Fully custom 3BSM electronics and software to translate PWM signals to ring gear motion A unique vase-mode design method that allows for variable perimeter counts and customized internal structures This makes foaming LW-PLA