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The employee-owned non-traditional defense contractor, Phenix Solutions is flight testing their new aircraft with the U.S. Air Force under the Agility Prime program. Federal Aviation Type Certification is in progress with completion expected in early 2023.

In 2019, Phenix Solutions successfully developed, produced, and conducted test flights of two Heavy Lift Rotary UAS concept demonstration platforms for the USAF Agility Prime program that consisted of a single rotor and quadcopter design. These prototype platforms helped Phenix refine the concept into a highly stable single-engine coaxial remote piloted aircraft (RPA). Brian Riese, president of Phenix Solutions, provided the following statement about the prototyping efforts:
“The Phenix prototype flight testing validated our core flight control avionics, which allowed us to advance a ‘modular off-the-shelf’ coaxial design using best of breed technologies – delivering enhanced performance, reliability, and sustainability in an efficient and affordable multi-mission package. The prototypes also help Phenix Solutions optimize propulsion and emerging rotor design by incorporating a ‘zero-maintenance’ virtual bearing counter-rotating differential coaxial blade system. This radical design eliminates over 60% of the maintenance costs while increasing aircraft availability rates. The Ultra 2XL actually ‘bends the cost curve!’”
The Phenix Ultra 2XL replaces the initial quad engine prototype and provides greater range, stability, and hover performance. The coaxial system eliminates the need for a tail rotor, which is the number one cause of all rotorcraft accidents: tail strikes. Mr. Riese commented, “The Ultra 2XL is aimed at giving ground commanders an aerial logistic asset that can deliver combat supplies to units in an Advanced Expeditionary Basing Operations Concept. The Ultra 2XL will serve commanders that will now be able to direct when and where much-needed supplies are delivered to keep pace with operational demands.”