8 coaxial motors + titanium & carbon frame
Eight brushless electric motors mounted on four coaxial booms pair with an extra-high-strength titanium tube and carbon-fiber cockpit structure built within the 253 lb FAA Part 103 airframe limit.
Four layers of personal eVTOL protection
AI-stabilized joystick & 60 mph governor
Redundant onboard flight computers stabilize pitch, roll, and altitude while software-limiting top level speed to ~60 mph inside 14 CFR Part 103 limits.
Optional ballistic parachute & cockpit airbag
Available as a $20,000 factory safety option on new builds — and pre-installed on select pre-owned allocations — for whole-airframe emergency descent protection.
Strict pilot weight matching & simulator prep
We enforce strict pilot weight limits (198 lb max on base S-Zero; 264 lb max on Plus, Lite, and Max) and coordinate Ottawa, IL simulator and test-pilot training before solo flight.
Pilot weight safety envelope by S-Zero edition
Never fly an ultralight eVTOL near or above its maximum pilot weight rating, especially on hot summer days or higher-elevation ranches where density altitude reduces rotor thrust margin. Weigh yourself wearing your helmet, jacket, and boots:
| Model edition | Standard pilot weight | Strict max pilot weight | Flight endurance | Safety guidance |
|---|---|---|---|---|
| YIVTOL S-Zero | 80 kg / 176 lb | 90 kg / 198 lb | 15 min (plan ≥20% reserve) | Rule out if pilot + gear exceeds 198 lb; step up to S-Zero Plus/Lite/Max |
| YIVTOL S-Zero Plus | 105 kg / 231 lb | 120 kg / 264 lb | 25 min (plan ≥20% reserve) | High-thrust coaxial configuration suitable up to 264 lb max pilot weight |
| YIVTOL S-Zero Lite | 105 kg / 231 lb | 120 kg / 264 lb | 25 min (plan ≥20% reserve) | High-thrust coaxial configuration suitable up to 264 lb max pilot weight |
| YIVTOL S-Zero Max | 105 kg / 231 lb | 120 kg / 264 lb | 40 min (plan ≥20% reserve) | High-thrust coaxial configuration suitable up to 264 lb max pilot weight |
Mandatory 6-point preflight checklist
Complete prior to every battery spool-up- Step 1
Boom pins locked
Confirm all four folding carbon rotor booms are seated and locking pins are fully engaged.
- Step 2
Eight coaxial props undamaged
Inspect all eight upper and lower carbon-fiber blades for nicks, cracks, or fastener play.
- Step 3
Parachute pin briefed
On ballistic parachute and airbag-equipped units, verify safety pin status and cockpit handle path.
- Step 4
20% minimum landing battery reserve
Confirm cell balance and plan flight duration so you touch down with at least 20% charge remaining.
- Step 5
Winds and density altitude checked
Verify calm daylight VFR conditions, gust spread, and local temperature/elevation thrust margin.
- Step 6
Class G airspace verified in B4UFLY
Check Airspace Link AirHub or Aloft for uncontrolled Class G airspace, zero active TFRs, and clear departure paths.
Strict operating limits & hard-landing grounding protocol
14 CFR Part 103 operating boundaries: Single occupant only; recreation or sport only (commuting, commercial hire, and carrying passengers are prohibited); daylight hours only (civil twilight requires an anti-collision strobe visible for 3 statute miles in uncontrolled Class G airspace); never fly over congested areas, subdivisions, roads, or open-air assemblies of people.
Post-Incident & Hard-Landing Rule: If an aircraft experiences a hard landing, rotor strike, structural impact, or telemetry fault, do not fly it. Ground and disconnect the battery immediately. If anyone is injured, call 911 first — then contact our Ottawa, IL Flight Desk at 815-993-0363 for inspection guidance.