how to use many ardupilot_gazebo models ? 2 or 3 iris demos?

[sofiathefirst]

is there a solution to simulate many models in gazebo?

[linuxsocke]

Yes look here https://github.com/SwiftGust/ardupilot_gazebo#multi-vehicle-simulation

But be sure that you have mounted a gazebo imu and gps sensor.

[khancyr]

you can look here : https://github.com/Intelligent-Quads/iq_tutorials on how to do multidrone simulations !