This year's mission: UAV with a towed sensor

The 2026–27 challenge asks teams to design, build, and test an uncrewed aircraft that can carry, deploy, and recover a towed sensor mid-flight.

Across the season, the aircraft has to deliver itself, transport a sensor packed in a shipping container, and then actually fly with a sensor trailing behind it on a line — lighting it up in different modes on command before reeling it back in and landing safely. It's a good example of what DBF asks every year: take a fairly unusual mission profile and turn it into a flyable, judged aircraft in a few months.

WINGSPAN LIMIT
6 ft max
Electric propulsion only, radio-controlled, no autopilot or GPS allowed.
WEIGHT LIMIT
Under 55 lb
Take-off gross weight, including payload — this is an AMA-sanctioned event.
TEAM MIX
All years welcome
At least 1/3 underclassmen; grad students limited to at most 1/3 of the roster.

The missions

Teams fly three timed missions plus a ground mission, each building on the last.

  1. Staging Flight

    A clean baseline flight — three laps, no payload, within a 5-minute window.

  2. Delivery Flight

    Same course, but now carrying the sensor in its shipping container (plus optional weighted simulators) — scored on how much weight it carries per second of flight time.

  3. Sensor Flight

    The aircraft deploys the towed sensor mid-flight, cycles its lights through three modes on command each lap, then stows it again before landing — scored on laps flown and sensor weight.

  4. Ground Mission

    A separate test of the shipping container itself: it has to survive a series of drop tests onto concrete without damaging the sensor inside.

Key dates & prizes

ENTRY & PROPOSAL
Oct 15–31, 2026
Top 100 proposals advance to the design report stage.
DESIGN REPORT
Feb 1–19, 2027
Determines flight order and fly-off eligibility.
FLY-OFF
Apr 15–18, 2027
TIMPA, Tucson AZ — hosted by RTX.

Cash prizes go to the top three teams overall ($3,000 / $2,000 / $1,500), plus a $100 prize for the single best design report. Winning teams may also be invited to present at AIAA's AVIATION Forum.

Want to build with us?

Aerodynamics, structures, propulsion, electronics, manufacturing, project management — every role is open.