ENHANCING THE C-31 SPRAY BOOM: A TECHNICAL DEVELOPMENT OVERVIEW
Driven by the Super Users Program
Our Super Users program played an essential role in the development cycle for our newest product, the V-shaped boom geometry for the C-31. Through many iterations, we designed the spray boom using feedback gathered from our Super Users program. This allowed us to gather information from users in the agricultural industry, moving our process from design and theory into the actual configuration of the drone. The configuration of the V-shaped boom represents a critical advancement in technology. It’s designed to optimize spray coverage, minimize draft, and enhance the aerodynamics of the C-31.
The design was tested over multiple seasons, giving us fantastic data to work with when it came to finalizing the prototype of the V-shaped boom. Our initial design of the C-31 spray boom included a standard, straight line boom configuration, similar to other designs on the market. The first iteration had two closely-positioned spray heads. This design was workable but not what we were looking for.
We then made a modification, changing the design from two nozzles to four nozzles. This was to increase the volume of flow and test the application capacity. With that decision, we were able to put our theory of an increased spray width into practice.
Through October and November, we went through an intense testing process. During this time, we explored nozzle replacement options, and boom adjustments. By doing this extensive testing, we were able to finalize a design that brought together functionality and durability.
After two months of beta-testing with our Super Users, we put a stamp of approval on the final design of the boom. Our boom incorporates a V-shaped sweepback geometry with four nozzles to maximize swath and minimize the Coefficient of Variation or CV. This means that we were able to generate results that show high levels of consistency. After months of testing, re-designing, and more testing in various geographical locations, the boom was ready.
An initial configuration of the boom demonstrated a spray swath of 50 feet with an application CV of 20%.
Spray Pattern Testing and Design Validation with Wind-Fall.com
To make sure that we could refine the design of the C-31 Spray Boom, we’ve worked with Wind-Fall.com to create a plan for comprehensive Spray Pattern Testing. Wind-Fall is recognized across the industry for being a benchmark of rigorous testing and independent evaluation. Our testing with Wind-Fall is the final design validation phase before we put the boom into commercial production.
Scope and Importance of the Testing
The objective of testing was to measure the spray distribution while analyzing the size of the droplets, and effective swath width. This was done under different operational parameters (flight speed, nozzle pressure, and weather conditions). This process exists to confirm that the current design for the C-31 boom meets all specs we set out to meet. These specifications meet the efficiency and safety metrics required for modern agricultural practices. A goal we have in this design is having optimal coverage with minimal drift potential. Minimal drift means we have a more efficient and environmentally friendly product.
Upcoming Publications and Guidance
We expect that the full, independent test result from Wind-Fall will arrive in the coming weeks. Once we have received the testing results, we’ll publish a summary of the findings. The published summary will include key performance indicators, and validation metrics.
Following an internal review of the Wind-Fall data, we will use the results to publish the official Manufacturer Guidance for Aerial Application. This document will be the resource for our end-users. The information included in the guide will be operational parameters, best practices, calibration procedures, and safety recommendations. Our operational guide will serve all users of the C-31 boom, providing instructions for precise control and compliance with aerial drone regulations across the US.