Reducing Wildfire Risk with Large Scale Prescribed Fire Drones This proposal is for research related to the development of a large unmanned incendiary load system for igniting prescribed burns. This proposal responds to the USDA NIFA SBIR priority 6"Developing Technology that Facilitates the Management of Wildfires on Forest Lands." Aerial ignition systems for prescribed burns are a critical tool for managing fuel loads as well as for fighting wildfires. Prescribed burns are a vital tool for both land management and active firefighting. The US spends $500M on prescribed burns each year. Aerial ignition for prescribed burns performed with helicopters is an expensive operation costing between $1K and $2K per hour. Moreover helicopter aerial ignition is a very dangerous operation underscored by the recent fatality of a firefighter who died in a helicopter crash in Texas while performing an aerial ignition operation. This proposal aims to provide a safer alternative with significant cost savings for stakeholders. The objective of this Phase 1 proposal is to study the feasibility of a large-scale prescribed fire drone based on a new heavy-lift parallel hybrid UAS being developed by Parallel Flight Technologies and the Plastic Sphere Dispenser (PSD) technology developed by Drone Amplified. Fundamental research into the applicability of the parallel hybrid system in the prescribed fire mission is required before developing a full solution. Also studying the unique vibration characteristics of the parallel hybrid airframe and its interaction with a future large PSD system from Drone Amplified is required before developing and integrating the systems. The effort will focus on characterizing airframe/payload vibration isolation flight dynamics testing with representative payloads in prescribed burn environments sensor and gimbal vibration mitigation PSD drop dynamics testing from the Parallel UAS and development of terrain follow capability for the Parallel UAS. The anticipated result is validation that a large unmanned system for prescribed burns can be developed based on the parallel hybrid UAS technology and the PSD technology developed by Drone Amplified. A Phase II grant would then provide the resources needed to begin building a full solution for market. The commercial applications for the technology are safer and lower cost prescribed burns for land management as well as controlled ignition as a tool for active wildfire suppression.