You can hardly follow any media without finding some article about the latest whizzbang electric propulsion multicopter project that “will transform urban transportation!” Or so they breathlessly exclaim. Fine. I look forward to going from a downtown hotel to the airport in minutes versus slogging through ground traffic for an hour. Will these arrive in some near future? Maybe. Even if they do arrive sooner than later, would a pilot feel entirely comfortable flying in an autonomous, computer-controlled aircraft? Only you can answer that question. You might get a chance sooner than you think. Whatever you think right now, would you change your mind if you got to fly one of these machines, safely, of course? Since autonomous operation is part of the plan, a current-day Lift Aircraft Hexa could take over any time and land safely on its own. Heck, my ancient (3-year-old) DJI drone can do that, with zero input from me.
A Multicopter for the Rest of Us? Part 103 eVTOL Hexa Is Preparing for a U.S. Tour
You can hardly follow any media without finding some article about the latest whizzbang electric propulsion multicopter project that "will transform urban transportation!" Or so they breathlessly exclaim.
Quick Look-Back…
- In November of 2017 — Lift Aircraft founded.
- December 2017 — Design work underway
- July 2018 in Lago Vista, Texas — First unmanned flight
- October 2018 in Lago Vista, Texas — First manned flight
Should You… Support or Object?
As I wrote this article, I knew sharp-eyed readers might (1) question Hexa's weight and (2) accept its weight or not, some would lament this could chance unraveling the almost 40-year-old Part 103 regulation. Now, numerous readers have said for years that the rule needs updating but many others argue that asking for any change might put FAA's least restrictive regulation at risk.Here's how the Part 103 calculations work for Hexa:
- Base empty weight allowance: 254 pounds
- Floats (30 pounds each x 7 floats): 210 pounds
- Ballistic parachute: 24 pounds
- Total allowed: 488 pounds
- Current Hexa empty weight: 432 pounds
- Excess allowance remaining: 56 pounds
Will "the Public" Fly Hexa?
To reassure pilots and everyone else, Lift has put major attention on safety. "Hexa is semi-autonomous so, regardless of what the pilot does, it will only fly in a safe manner within the limits programmed into the autopilot computer," notes Lift as they work to bring flying to the public.Lift is starting their first Vertiport where people can come fly Hexa, a concept that could make a lot of sense.
The following lists highlight some but not all of Lift's plans. The company seems highly focused on safety. That's probably good for their corporate future but also good for the future of anyone who flies Hexa.
Could Lift Aircraft set up rental facilities and how would they guard against problems?
- FAR Part 103 allows rental of aircraft
- Redundant 2-way communication with Control (experts guiding a renter's flight)
- Dedicated controllers monitoring flight telemetry
- Multiple remote pilots on standby
- Assisted preflight and safety briefings
- Emergency assistance and intervention
What happens if a pilot gets in trouble while flying Hexa?
- Flight controlled by computer with joystick input (the pilot does direct the flight, is not just along for the ride)
- "Let go" of stick is a controlled hover
- Automated precision takeoffs and landings
- Automatic low battery Return to Home
- Automatic wind speed, direction adjustments
What are some safety features has Lift incorporated into Hexa?
- Eighteen motors, propellers, and batteries
- Safely land with up to 6 motors disabled
- Highly reliable — only 18 moving parts!
- Propellers out of reach
- Enhanced visibility
- Distributed batteries (away from pilot; located under each motor)
- All critical systems at least 2x redundant
- Design factor of safety — more than 2 everywhere
- 18 separate batteries for fault tolerance
- Batteries located way from pilot (thermal runaway tolerant)
- Safe emergency landing capabilities on water
- Energy-absorbing center float crumple zone
- Whole aircraft air-cushion deploys with low-altitude emergency airframe parachute