Everyday parcels, a short flight away.
EVERSTEEL TECHNOLOGIES / QUIET CARGO
Valdeira-1.
A quieter way.
Developing quieter flight for the places we live and work.
5 kg
Payload target
4 km
Round-trip mission
50 dB(A)
Acoustic target*
Design targets · performance subject to testing. *Hover measurement 5 m below the aircraft.
DESIGNED AROUND THE DELIVERY
Carry what matters.
Keep the noise down.
We’re developing a cargo drone with a focused purpose: move useful payloads over short distances while reducing the sound of flight. From rotor selection to the payload compartment, every decision starts with that mission.
THE AIRCRAFT IN NUMBERS
The details.
Considered together.
VALDEIRA-1 / TECHNICAL BRIEF
SIZING & AIRFRAME
Valdeira-1 design render
01 / SIZING
A compact starting point.
The airframe, sized around the delivery.
- Maximum take-off mass
- 24 kg, including payload & batteries
- Overall dimensions
- Each less than 2 m, including rotor sweep
- Landing area
- 3 × 3 m, flat concrete
- Final geometry
- In development
Design requirements. Final aircraft geometry is under development.
POTENTIAL APPLICATIONS
A shorter journey.
A quieter arrival.
Connecting care with the supplies it needs.
Small parts. Fewer ground trips.
Essentials for places harder to reach.
ABOUT EVERSTEEL
About
Eversteel.
Eversteel Technologies is a student-led aerospace engineering team from TU Delft, united by a shared ambition to make aviation quieter, more efficient, and better suited to everyday use.
Our team consists of motivated students with a strong interest in engineering, innovation, and aircraft design. Through the development of Valdeira-1, we aim to explore the potential of low-noise aerial delivery and contribute to more practical and less disruptive cargo transport solutions.
Under the technical supervision of Dr. Daniele Ragni of TU Delft, we are working to translate our academic knowledge into a functional aircraft prototype and meaningful engineering results.
A FEW MORE DETAILS
Good questions.
Clear answers.
What is Valdeira-1?+
Valdeira-1 is the cargo drone in development at Eversteel Technologies, a student team focused on quieter flight. Development currently covers aircraft configuration, propulsion, aerodynamics, payload integration and battery sizing.
How much can it carry?+
The design brief targets a 5 kg payload and a cargo envelope of 0.50 × 0.50 × 0.50 m. These remain design requirements to be demonstrated through testing.
How quiet is it?+
The acoustic objective is 50 dB(A), with hover measurement 5 m vertically below the aircraft. Sound performance has not yet been measured. Testing will cover hover, cruise, take-off and landing, with both loaded and empty aircraft.
How does a delivery work?+
The planned sequence is a 2 km outbound flight with cargo, manual landing on a flat 3 × 3 m area, stopping the motors, unloading and returning empty over 2 km.
Is the aircraft ready to fly?+
The project is in conceptual design. The physical prototype, final hardware choices and flight-test programme are still ahead. The images show renders of the current Valdeira-1 design.
EVERSTEEL TECHNOLOGIES / VALDEIRA-1