You need a Universal Hub to connect your AuthentiKit flight controls to a PC. If your flight controls do not include one already (starter kits include them) then this is what you need. This is the standard style of hub without the premium cable clamps.
A replacement spade handle for the Spitfire MkIX stick with the dunlop classic Dunlop 'Crackle' grip designed in. Replace your existing spade grip or print clamshell add-on parts for existing builds.
This is the software written by Leo Bodnar to allow you to set adjacent pins on your Authentikit/BU0836A board to behave like an encoder. This is commercial software. You are free to share it however it does not have the indicated GPL licence as shown.
This makes a base for use with the Authentikit Alternative Spade Grip Mounting Base for extruded aluminum simpits. It allows the stick to be mounted on the floor.
This LUA script provides full Differential (Toe Brakes) to the MSFS Spitfires by Mixing the Single Brake Lever input with Rudder Input. Works in MSFS with any aircraft with a single brake analog control. Requires the FSUIPC7 (full) version to work.
Spitfires had an alarm that would go off if the throttle was closed without the landing gear being lowered. This amendment to the Authentikit Mk1a Throttle Quad reproduces that facility.
New
Takes button/encoder inputs and turns them into a virtual axis that you can tune for optimal experience in sim (e.g. map the number of turns of a trim wheel more precisely), and much more!