Falken Avionics Expands iPad-Based EFIS Lineup - Kitplanes Magazine Steve Sokol walks us through upgrades to the Falken Avionics suite that employs the Apple iPad as an Experimental-class EFIS. The company now has a new cooling system as well as an entirely new hardware base that provides position information, attitude solutions, pitot-static information and plenty of other inputs. The system also includes a control bar that's part of the iPad mount. Coming soon is an ARINC 429 interface for use with panel-mounted navigators, and a new engine monitor box is available too.