Yes, it is possible. You will need to disable the radio failsafe parameters, and pre-arm checks.
But if something goes wrong, you will not have a safety net. Do it at your own risk.
Besides that according to some laws in some countries that is prohibited. Inform yourself about the laws in your country.
PS. Please update to ArduCopter 4.0.7-rc1 using the mission planner beta upload feature. ArduCopter 3.6 is outdated.