Rainmaker Technology Faces Pushback from Pilots Union on Cloud-Seeding Drone Initiative
Rainmaker Technology is encountering significant opposition from the Air Line Pilots Association (ALPA) as it seeks approval from the Federal Aviation Administration (FAA) for its innovative cloud-seeding project utilizing small drones. The union has urged the FAA to deny Rainmaker’s request unless it adheres to enhanced safety standards.
FAA’s Critical Decision on Drone-Based Weather Modification
The FAA’s upcoming decision will play an essential role in shaping the regulatory landscape for weather modification techniques employing unmanned aerial systems. Rainmaker’s ambitious plans for utilizing small drones are at a pivotal crossroads.
ALPA has raised concerns about the startup’s petition, stating that it lacks sufficient safety assurances and introduces "an extreme safety risk." Rainmaker’s CEO, Augustus Doricko, responded by arguing that the union’s criticisms stem largely from the public notice rather than the comprehensive safety data included in private documents submitted to the FAA.
Petition for Exemption from Hazardous Material Regulations
Rainmaker has requested an exemption to current regulations that prohibit small drones from transporting hazardous materials. This petition was filed in July, and the FAA has yet to issue a ruling, instead requesting more detailed information on operational parameters and safety measures.
The company plans to incorporate two types of flares—one that burns in place and another that can be ejected—on its Elijah quadcopter to disperse particles designed to enhance precipitation. The Elijah drone can ascend to a maximum altitude of 15,000 feet above mean sea level (MSL), which overlaps with controlled airspace where commercial aircraft typically operate. As such, any drone operations within this altitude require prior approval from Air Traffic Control.
Operational Safety Measures and Airspace Coordination
Rainmaker’s petition assures that its drone operations will occur primarily in Class G or uncontrolled airspace unless alternative authorizations are secured. However, the ALPA asserts that Rainmaker’s filing does not clearly outline operational zones or specific altitudes for its flights. Doricko countered by emphasizing that previous filings listed safety assurances, including restricting operations to a maximum altitude of 15,000 feet MSL, in areas deemed safe by aviation authorities.
The pilots union’s concerns extend to the flares themselves, citing issues related to foreign object debris and fire safety. In their response, ALPA highlighted the absence of trajectory modeling and environmental impact assessments regarding the chemical agents proposed for use.
Addressing Environmental Concerns
In defense of the cloud-seeding methods, Doricko referenced the extensive research conducted by independent organizations, including the Environmental Protection Agency (EPA) and various state natural resource departments. He pointed out that these studies, spanning over 70 years, have not found any significant detrimental effects associated with cloud-seeding practices.
Sam Kim, Rainmaker’s aviation regulatory manager, expressed respect for the pilot’s union and indicated a desire to collaborate with them more effectively. He asserted that the union’s objections reflect a misunderstanding of the company’s aims with the exemption request, noting that the use of flares is restricted to research within tightly controlled environments.
Contextualizing Cloud-Seeding Practices
Rainmaker typically disperses between 50 and 100 grams of silver iodide during operations—substantially less than what a commercial aircraft emits in a single hour of flight. This contrast underlines Rainmaker’s commitment to responsible atmospheric research and innovation in cloud-seeding technologies.
The company argues that deploying drones for cloud seeding could ultimately enhance safety by minimizing human risk through remote operations over rural landscapes, all while incorporating rigorous safety protocols.
Established cloud-seeding operations have been in practice since the 1950s, primarily in the western United States, where crewed aircraft collaborate with state agencies to bolster snowpack and reservoir water supplies through the introduction of silver iodide particles into suitable clouds.
As Rainmaker continues to navigate this regulatory landscape, the outcome of the FAA’s deliberations will likely serve as a benchmark for future innovations in cloud-seeding and drone applications.
This article aims to provide updates on Rainmaker Technology’s cloud-seeding initiative and its engagement with regulatory and safety concerns while highlighting the broader context of weather modification practices.



