chAIR Multicopter in flight

chAIR Multicopter

This multicopter was designed by Axel Borg from parts he got from Hobby King. The design features a central seat surrounded by four circular rotor-mounts. The estimated flight time is 14 minutes, but the maximum attempted time is 11 minutes. The estimated build cost was $10,000.


  • Control Board: KK 2.1 Multi-Rotor Control Board
  • Motors: Multistar Elite 5010-274KV Multi-Rotor Motor
  • ESC: 76x afro 20A HV, with one extra 63V 330uF low ESR capacitor, fitted to each ESC to handle the long current path from the battery to ESC.
  • Batteries: 80x Multistar 4S 5.2Ah
  • Controller: RC 5x Turnigy TGY-i6S Digital Proportional Radio Control System
chair multicopter featured
chAIR Multicopter in workshop
chAIR Multicopter in flight
chAIR Multicopter in flight
chAIR Multicopter in field
chAIR Multicopter in field



chAIR MulticopterWingless (Multicopter)Flight Testing1 PassengerElectric/Batteries, Piloted