January 2024 Recap

In January, thorough ground testing and ongoing refinement of the DarkAero 1 prototype remained a focus of the team. The testing identified several minor issues that are in the process of being resolved. Efforts to expand the team continued, and additional facility space was explored for kit production and contract manufacturing.

Ryan, Ryley, and River conducting proof load tests on the ailerons and aileron controls.

Ground Testing
A number of proof load tests were conducted on the control system of the DarkAero 1 prototype to simulate aerodynamic flight loads and ground gust loads. The complete systems for the flaps and ailerons were loaded to observe the response of the control surfaces, hinges, linkages, bearings, and their support brackets. Several areas within the flap and aileron systems were identified with unacceptable levels of compliance. These areas were reinforced to increase their stiffness and safety margins. The flap and aileron systems will be reassembled for continued ground testing in February.

The flap handle detent bracket was redesigned based on ground testing.

The ailerons were also rebalanced last month, both statically and dynamically, in preparation for flight testing. Balancing control surfaces is a good countermeasure to reduce the potential for flutter at high speeds. The ailerons had a basic level of balance established during their construction, but the application of primer paint altered their balance state.

Cabin Work
With the majority of the DarkAero 1 systems complete, more attention has shifted towards refining the cabin for flight testing. The seatbelts have gone through several iterations to achieve a design that can handle crash loading conditions while still being comfortable for the pilot. The mount points for the shoulder harnesses were finalized and installed previously, but the lap belt and anti-sub belt mounting locations were reevaluated based on suitability for a wide range of pilot sizes. The 5-point harness in the prototype was recently modified to a 6-point mounting configuration for improved ergonomics and safety given the available mounting locations for the anti-sub belts.

In addition to work on the seat belts mounts, modifications were made to the lines routing for the fuel lines and vent lines extending from the sump tank to increase their clearance relative to surrounding control system hardware. This task had been put on hold until after the design and installation of the flap actuation hardware was complete in December. The finalized lines routing utilizes a number of flexible ¼” and ⅜” lines to navigate away from the sump located under the seats.

Landing Gear Retract 
Last year, testing was performed on the retract mechanism for the main landing gear. Out of this work, improvements to the design of the emergency release mechanism were developed to make this system more reliable under a range of potential flight conditions. The parts for the revised emergency release mechanism were ordered, and the work to finish validation of the emergency release for the main gear will continue in February.

DarkAero Growth
DarkAero is growing to accelerate flight testing the DarkAero 1, manufacture DarkAero 1 kits, and expand engineering and manufacturing services. Interviews for new engineer and technician roles within DarkAero are underway. If you’d like to join the team and contribute to advancing the frontier of aerospace, check out the DarkAero Careers page and apply today! Interested candidates can inquire at careers@darkaero.com.

In parallel with the team expansion, DarkAero is strategically pursuing additional shop space to meet the increasing demand for composites manufacturing work and DarkAero 1 kits.

Aerospace Composites Course
Session 21 of the DarkAero Aerospace Composites Course was held in January, and each session brings a new group of students with unique applications. While students in the last session were interested in composites for use in aviation, marine, and sporting goods projects, composite repair has remained a universal topic of interest. The course module on composite repair has continued to advance, and it has also been added to the online version of the course to allow past students to access the new material.

The next session of the DarkAero Aerospace Composites Course will be held on March 22-23. Sign up for the course using the link below:

Sign up for the DarkAero Aerospace Composites Course!

In addition to the Aerospace Composites Course, the next session of the Aerospace Mold Making Course will take place on February 22nd - 23rd. Only 3 spots remain. Sign up by following the link below:

Sign up for the DarkAero Aerospace Mold Making Course!

Looking Ahead
In February, the team will continue working through the remaining ground tests for the control system and structures of the airframe. The main landing gear drop test and load test of the wing to fuselage interface are also on the horizon. Expanding the team and getting new team members up to speed will remain a focus.

If you'd like to get more frequent updates on our progress and stay better connected with what we're up to, consider subscribing to our YouTube, Instagram, and LinkedIn accounts. Links to these pages can be found below.

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