Envelope

Lynchpin

Customer’s initial situation
Oscar-nominated Hollywood actor Terrence Howard designed an innovative geometry for a multirotor aircraft. However, he had no prior experience with the design or construction of drones.

Special challenges
At the time, it wasn’t necessary to fly a 6DOF drone with PX4 or ArduPilot without modifications to the code. In addition to deriving the mathematical equations, it was also essential to know and model the exact thrust curve of the propulsion system in order to achieve stable manual flight without GPS.

Custom solution
With the help of 3D printing and CFRP (Carbon Fiber Reinforced Plastic) milled parts, a flying prototype was built. The software was gradually adjusted until full 6DOF flight was achieved.

Success Measurement
Thanks to the journal paper and demo videos created during the project, Terrence Howard was able to attract additional interest for the Lynchpin. A small group of experts has since gathered to continue working on the project.

Customer
Terrence Howard, Tangential Flight Corporation, USA

Year
2021

Project duration
5 Months

Engineering services
– Development of a Control Concept for a 6 DOF Drone
– Measurement of a Rotor System for System Identification of the Propulsion Systems
– Fabrication of a Flying Prototype
– Flight Testing to emphasize the potential of the invention

Technologies used
– Analytical Calculations
– Prototyping
– Autopilot Modification
– Flight Testing

Video
Paper

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Rotors, Drones and More
Dr. Christian Molter
Freelancer in Research and Development
Alexanderstr. 9A
70184 Stuttgart
Germany

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Alexanderstr. 9A
70184 Stuttgart
Germany

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Attribution to used icons (created by)

Andi Nur Abdillah from the Noun Project
Edy Subiyanto from the Noun Project
patin kuning from the Noun Project
Yogi Aprelliyanto from the Noun Project
Robert Bjurshagen from the Noun Project

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Alexanderstr. 9A
70184 Stuttgart
Germany
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