The invention disclosed herein comprises a trailer capable of transporting, storing, launching and recovering an aircraft, such as a helicopter or rotorcraft. The trailer includes a movable landing pad from which the aircraft is launched or lands upon and a sliding curtain wall which covers, extends and retracts to provide for secure storage of the aircraft while in transit. The trailer may be attached to and detached from a tractor, truck or other capable tow vehicle. In one embodiment directed to aerial spraying applications, the trailer also includes tankage and fluid transfer equipment and pumps for the storage and transfer of fuel, chemical and water supply, when aerial spray operations using the aircraft are being conducted in the field.