Brad Hughey
  • Male
  • Conroe, TX
  • United States

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Brad Hughey's Discussions

North Central Illinois (Rockford) Area Test Field Wanted

Started this discussion. Last reply by Gary McCray Jan 12, 2013. 19 Replies

My electric multicopter is 25 feet wide from propeller tip to tip.  Testing it in my driveway is no longer a viable option.  Mechanical and electrical failures have been eliminated, and now it's time…Continue

The Case for Large-Scale Electric Multicopters

Started this discussion. Last reply by James Thesken Apr 30, 2017. 140 Replies

This discussion thread is a follow-on to several conversations I've had with people in the forums who are particularly interested in the aerodynamics of vertical take off and landing (VTOL)…Continue

Tags: cyclic, control, quadcopter, quadrotor, multicopter

The Most VTOL Fun You Can Have for 20 Bucks - Syma 107

Started this discussion. Last reply by Brad Hughey Nov 10, 2011. 3 Replies

I bought my son one of these electric model R/C copters for his 9th birthday, and I'm embarrassed to say I've played with it more than he has.  It is an indoor flyer, remarkably stable, and while the…Continue

Tags: Syma, S107, Amazon, Helicopter, R/C

Soft Start Throttle

Started this discussion. Last reply by Brad Hughey Aug 10, 2011. 2 Replies

For me it seems APM system leaves about 20% of the first throttle travel as dead slack, then suddenly springs forth with about 20% duty cycle in the PWM signal.  This probably isn't an issue for most…Continue

Tags: start, soft, response, Throttle


Brad Hughey's Page

Profile Information

About Me:
I am a personal aviation entrepreneur dedicated to the proposition that flying is the ultimate expression of freedom. An electronics engineer by education and early career, I was active in the data storage industry for a long time. But my first love has always been aviation, having passed my private pilot check ride 4 days after my 17th birthday.
Please tell us a bit about your UAV interest
It's ironic that coming from the data storage industry, my job was to preach the benefits of having redundancy and fault-tolerance. "If it moves, it fails."

Regular helicopters rely on achieving and maintaining mechanical perfection for reliability. What if they were designed more like enterprise storage systems?

Chicago Suburbs

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Comment Wall (6 comments)

At 5:38pm on July 29, 2011, Julie Macfarlane said…

I have about 30 years experience as an EE and have all the neat tools  :)

Either thats a very small driveway or you are out of control  :)

Must be a blast to fly!

At 5:52pm on July 29, 2011, Brad Hughey said…

It's a full-sized (3-car garage) driveway and the eCopter has a 30 foot rotor array span.  I guess it might look like a model, but it's a single-passenger FAA Part 103-compliant (ultralight) human-carrying multi-rotor electric VTOL aircraft.  It will be a blast to fly, but there are some unique tribulations with ground-effect aerodynamics that I am very close to solving with the help of a little automation.  :-)

At 3:59pm on March 5, 2012,
William Premerlani

Hi Brad,

I am not sure what you mean by your question, "how fast is fast enough". Could you elaborate? If you are talking about sampling rate, tests that I have done show that 8000 samples/second is about right.


At 5:58pm on October 2, 2012, R. D. Starwalt said…

Methinks the same. Friends we are now.


At 7:24am on January 14, 2014, thomas lewis said…

This is a excellent platform to develop for a affordable and safe flying machine.I'm guessing you could use some of the same software and hardware,that was developed for the hobby,commercial multicopter market with a little tweeking.The design affords itself to,being able to fly on fewer than all the motors and a ballistic chute,making it,really safe .A slow,low altitude,affordable VTOL aircraft,I love it,good luck,I have no doubt you will succeed.Hopefully we will see more and more software,hardware being developed.

At 12:10pm on January 24, 2014, Gary McCray said…

Hi Brad, I foolishly started a Blog about optimal Multicopter design and it has kind of gone ballistic.

I consider you one of my main mentors in this area with your very solid grounding of the real issues and aerodynamics to which they are subject.

I'd very much appreciate it if you might take a look at the blog and possibly insert some of your own perspective.

It could use a serious grounding and benefit from your insight.

Best Regards,


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