Bio-Inspired Heavy-Lift VTOL Simulator for DARPA Lift Exploration - Looking for Builder Insights

[dbbun]

Hi everyone - new here.

I’ve been building a bio-inspired heavy-lift VTOL simulation environment to explore ideas related to the 2026 DARPA Lift Challenge. The simulator generates and evaluates different multirotor configurations, including some unusual layouts inspired by nature.

This is just a technical demo I developed independently - and I’d really appreciate input from people with hands-on RC building and flying experience:

• What design constraints matter most when trying to lift serious payloads?
• Have you experimented with high rotor-count aircraft or mixed propulsion types?
• What practical limits do you run into as weight scales up?

Thanks - excited to learn from this community.

Uri K.

DBbun/DARPA_Lift_2026 · Datasets at Hugging Face

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GitHub - DBbun/dbbun-darpa-lift

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DARPA Lift Challenge | DARPA

www.darpa.mil

 

[647hotrod]

I feel like 5 miles is far for rotor only lift. had some thought of blown wings that can rotate for more efficient flight. check out rctestflight for my inspiration. with 2 wings and more rotation, maybe it could go vtol?

 

[Piotrsko]

I believe the Ukrainians are at +1100 kilometers range

 

[Thomas B]

I believe the Ukrainians are at +1100 kilometers range

True, but I think that is a fixed wing drone, not a very heavy lift multi rotor.

5 miles with the right design ought to be doable. Think of it as flying for 5 miles, at around 25 miles per hour. About a 12 minute flight. Plus a little extra time at each end of the flight for taking off and landing. Call it 14-15 minutes.

 

[Piotrsko]

From the TV news, looks like an anti tank round on a 4 or 6 motor with + 12" props. No experience with those rounds, but hazard they be more than 10lbs

Yes the very long range ones are fixed wing, but still, 1100 clicks?