DeltaBurn retrofits existing propulsion disks—including propellers, rotors, turbofans, and propfans—with aerodynamic modifications that boost efficiency and cut fuel consumption by up to one‑third.
Funding
Funding not disclosed
Founders
Product
Problem
Current aircraft propulsion disks—propellers, rotors, turbofan and propfan fans—lose a large portion of their aerodynamic efficiency after take‑off, leading to high fuel burn, elevated emissions, and limited range. Replacing engines or introducing new airframes is a multi‑decade process, leaving the existing fleet unable to achieve meaningful decarbonisation in the near term.
Solution
DeltaBurn retrofits the existing blades of any rotating propulsion disk with precision‑engineered flow‑modifier attachments. These on‑blade devices eliminate normal shock formation on the suction surface, redirect downstream swirl, and sustain supersonic flow across the blade, thereby restoring lost thrust potential without altering the engine core. The modification enables the same rated thrust at lower rotor speeds, reducing N1/N2, exhaust‑gas temperature, vibration, and fuel consumption by up to one‑third on turbofans and by 20 %‑plus on turboprops. Because the engine itself is unchanged, certification proceeds via Supplemental Type Certificates (STCs), allowing operators to install the retrofit in a single day and realize immediate fuel‑cost savings, lower emissions, extended range, and longer engine life. Early partners gain priority access to certified STCs and a share of future retrofit revenues.
Target Audience
Primary customers are commercial airlines, regional operators, and military or defense fleets that operate turbofan, turboprop, or rotor‑craft propulsion systems and seek immediate fuel‑efficiency and emissions reductions.
Features
- Precision‑engineered on‑blade flow‑modifier attachments that fit existing propellers, rotors, turbofan and propfan fans without structural changes to the engine.
- Elimination of blade‑surface shockwaves and redirection of post‑blade swirl, maintaining supersonic flow and increasing lift‑to‑drag ratio.
- Permanent derating of the propulsion disk: lower N1/N2, reduced exhaust‑gas temperature, decreased vibration and noise.
- Demonstrated fuel‑burn reductions of ~33 % on turbofans and ~20 % on turboprops in flight‑tested programs verified by independent certification engineers.
- Installation completed in ≤ 1 day per aircraft, with service life aligned to standard C‑check intervals.
- STC‑based certification pathway applicable to a wide range of aircraft types, including high‑bypass turbofans, regional jets, turboprops, and helicopter rotors.
- Revenue‑sharing partnership model that provides early adopters a stake in future retrofit sales across the fleet.