Parsa Rezaei

Work · NASA MINDS competition, ocean-world exploration brief

Air-and-Water Autonomous Vehicle

NASA MINDS 2025 - Exceptional Experimental Design

AQUAD: a single vehicle that flies to a site, submerges, maneuvers underwater and returns to the air, on one charge. Built against a brief targeting ocean worlds such as Europa.

AQUAD on grass, its pressure dome and red EDF thrusters visible
AQUAD on grass, its pressure dome and red EDF thrusters visible

The problem

Air and water impose opposite requirements. Propulsion efficient in one medium is wrong in the other, the structure must tolerate pressure while staying light enough to fly, and the controller has to remain stable through the transition itself.

What I did

Used lightweight 50 mm EDF thrusters selected to produce usable thrust in both media, on a pressure-tolerant frame kept within the flight weight budget.

Wrote adaptive control firmware that reconfigures the control loop as the vehicle changes medium, rather than treating flight and dive as separate vehicles.

Instrumented the whole thing with real-time dashboards over MAVLink so behavior through the transition could actually be observed.

Result

Aerial insertion, subsurface maneuvering and vertical extraction on a single charge. Recognized for Exceptional Experimental Design at NASA MINDS 2025.

Get in touch
8 figures

From the report

Bench photographs and measured data from the project's own report.

Sealed spherical hull variant, ready for a water trial
Junction-box hull on the bench during assembly
Reversible peristaltic pump under test for ballast control
Diaphragm and submersible pump comparison rig
Double diaphragm configuration being characterized
Ballast bladder system options
Full CAD assembly of the air-and-water vehicle
Electric ducted fans chosen for the aerial mode