IN Brief:
- Performance Drone Works and Sine Engineering have signed a memorandum of understanding on drone communications and navigation.
- The companies intend to assess integration, joint product development and possible US manufacture of selected Sine equipment.
- The partners have disclosed no equipment quantities, contracted production capacity or funded assistance deliveries.
Performance Drone Works (PDW) and Sine Engineering have signed a memorandum of understanding to investigate resilient communications and navigation technology for uncrewed aircraft, together with the possible manufacture of selected Sine products in the United States. The agreement was signed at a transatlantic defence industry forum in Kraków, Poland, and announced on 12 November.
The proposed cooperation covers possible integration of Sine communications into PDW aircraft, joint product development, and a preferred US manufacturing relationship. The partners are also examining potential activities supporting Ukraine. Product selection, production arrangements, and commercial terms still require separate decisions; no equipment quantities, factory investment, or funded delivery schedule were disclosed with the memorandum.
Sine Engineering develops communications and navigation equipment for uncrewed aircraft operating where radio links or satellite positioning may be disrupted. Its stated capabilities include interference-aware data links and GPS-independent positioning. Those descriptions concern the company’s existing product portfolio; the 12 November agreement does not select a Sine module or establish how it will perform once integrated with a PDW aircraft.
Radio resilience is a central engineering problem for uncrewed aircraft because navigation and remote control impose different demands on the same platform. A navigation receiver must estimate position and movement, whereas a command link carries instructions and status information. A camera or other mission payload can generate a much larger stream of data, with greater bandwidth requirements and different tolerance for interrupted transmission.
Interference can affect those channels separately. A vehicle may retain onboard navigation while its control link becomes intermittent, or maintain radio contact while its satellite navigation solution becomes unreliable. Equipment integration must therefore consider the behaviour of the aircraft as a complete system, including loss-of-link procedures, pilot indications, autonomy settings and the accuracy of remaining position information.
Sine describes methods that include interference detection and frequency hopping. Their effectiveness on an aircraft depends on the available spectrum, antenna placement, radio configuration, and software integration. Laboratory tests alone would not establish how a combined aircraft and communications system responds to changing link conditions in flight, and no flight-test data for the proposed partnership has been released.
Navigation without dependable satellite signals presents a related qualification problem. An alternative positioning method has to provide the aircraft with information of sufficient accuracy and timeliness for its intended task. Interfaces with the autopilot are especially important because stale or inconsistent position data can affect route keeping, obstacle avoidance and mission execution.
PDW’s involvement could bring radio equipment design and aircraft integration work into the same engineering process. Antenna locations, power connections, control interfaces, and maintainability could then be assessed alongside the other aircraft systems before a configuration is fixed. The memorandum sets out that collaborative intention, but the companies have not announced a named aircraft fit or an integration test schedule.
PDW develops modular uncrewed aircraft and related manufacturing and sustainment capabilities for defence customers. Its C100 has previously been identified by the US Army as one of the systems selected for medium-range reconnaissance requirements, with modular payloads supporting changes in mission equipment. The November memorandum does not state that Sine technology will be installed on C100 or any other named aircraft.
Different aircraft configurations can impose substantially different installation constraints. Available electrical power, usable antenna positions, weight, heat rejection and access for maintenance may all influence the choice of a communications module. An integration that works on one platform can require modified harnesses, software drivers or certification evidence before it can be transferred to another.
Under the manufacturing element, PDW may produce selected Sine communications or navigation products in the United States for the companies’ respective customers. The partners must still decide which products would be covered, where production would take place, and how design authority, component sourcing, and quality assurance would be allocated. The agreement does not authorise a specified factory expansion or commit a production volume.
Moving manufacture to another site would require more than transferring a bill of materials. Production drawings, component sourcing, firmware versions, test fixtures and quality-control procedures must produce equipment that behaves consistently with the original design. Communications products also require appropriate radio-frequency performance verification, particularly where resilience depends on precise receiver and transmitter behaviour.
The proposed cooperation follows earlier US–Ukrainian financing activity involving Sine. In March 2026, the board of the US–Ukraine Reconstruction Investment Fund approved its first equity investment, identifying the company as a developer of resilient drone communications and navigation technology. The public approval announcement did not establish that funds had already been disbursed, and the investment decision is separate from the November PDW memorandum.
Potential assistance for Ukraine is another stated area of cooperation, but neither company has identified a funded programme, recipient, shipment, or date for delivering jointly produced equipment. Any supply arrangement would require a defined product and commercial or government agreement, alongside applicable export requirements. None has been disclosed under the signed memorandum.
PDW and Sine will now evaluate integration options and the terms of any US manufacturing relationship. Until those choices produce named hardware configurations, tests, and production agreements, the signed document provides a commercial framework for cooperation rather than evidence of new deliveries or factory output.
