Stephen R Mann
  • Male
  • Westford, MA
  • United States
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Stephen R Mann's Groups

Stephen R Mann's Discussions

How can a bad compass calibration cause a fly-away?

Started this discussion. Last reply by Stephen R Mann Dec 28, 2014. 4 Replies

In the Wiki, it says that compass calibration errors can lead to a fly-away.  I am curious why?  I thought that a fly-away was because the a/c didn't know where it was.  What does compass calibration…Continue

Original 3DR Hex, Ready to Fly

Started Sep 25, 2014 0 Replies

This is the original long-arm 3DR hex drone. Of course with some modifications. My original plan was to add a gimbal to carry a DSLR camera for photography, but I never got around to it. In my tests…Continue

Drones in the news - a Whitehouse petetion

Started Feb 5, 2014 0 Replies

The story, which I copied verbatim:A Minnesota brewery's airborne solution to the preventable yet apparently prevalent problem of running out of beer while ice fishing has been shot down by the FAA.…Continue

Tags: FAA

Commercial UAVs are inching into airspace

Started Aug 6, 2013 0 Replies

Article in Aviation Week…Continue

 

Stephen R Mann's Page

Latest Activity

Stephen R Mann replied to Rob Dunbar's discussion Daily Drone News Articles Rant
"There is absolutely no factual evidence to support the fear and ignorance around small personal drones. There have been hundreds of thousands of hours of flight time using these small aircraft, yet there is not one verifiable report of a drone crash…"
Feb 2
Stephen R Mann replied to Stephen R Mann's discussion How can a bad compass calibration cause a fly-away?
"Atti or Attitude, depends on which multirotor I am flying. But, I never thought of the current position as a waypoint, but it does explain the toilet bowl effect when the compass calibration is off a bit."
Dec 28, 2014
Stuart Brookes replied to Stephen R Mann's discussion How can a bad compass calibration cause a fly-away?
"Not sure what atti mode is. Is that a dji mode? Either way all GPS modes use awaypoit of sorts, even if its just the position it is trying to maintain in loiter or pos hold etc"
Dec 28, 2014
Stephen R Mann replied to Stephen R Mann's discussion How can a bad compass calibration cause a fly-away?
"Thanks, but how does this explain a fly-away in mid flight?"
Dec 28, 2014
Stuart Brookes replied to Stephen R Mann's discussion How can a bad compass calibration cause a fly-away?
"In the gps based modes it still needs good compass info to know which direction to travel. Imagine if heading was 180 degrees out, the vehicle would head in the wrong direction completely and the harder it tries the further it gets from where it…"
Dec 28, 2014
Stephen R Mann posted a discussion

How can a bad compass calibration cause a fly-away?

In the Wiki, it says that compass calibration errors can lead to a fly-away.  I am curious why?  I thought that a fly-away was because the a/c didn't know where it was.  What does compass calibration have to do with that?See More
Dec 26, 2014
Stephen R Mann replied to Timothy Clemans's discussion Renting Drones in Seattle
"Is your operation Todd?"
Dec 15, 2014
chris replied to Stephen R Mann's discussion Where did the "Absolute Alt" checkbox go?
"Thank you, Understand that, but when I check "verify Height" the altitude is automatically set to Absolute values. I mean I have for my waypoint 1 alt:780 and not alt:30 because my Home altitude is set to 750. Do you need a printscreen?"
Oct 9, 2014

Developer
Michael Oborne replied to Stephen R Mann's discussion Where did the "Absolute Alt" checkbox go?
"copter does not support absolute alts."
Oct 9, 2014
chris replied to Stephen R Mann's discussion Where did the "Absolute Alt" checkbox go?
"Hi, I have the same problem. First I've installed Mission Planner WITHOUT connecting it to my drone Tali H500. There I had the checkbox Absolute Alt that I've checked. Atter that, I did connect my H500 to my computer, and after that, when…"
Oct 9, 2014
Stephen R Mann posted a discussion

Original 3DR Hex, Ready to Fly

This is the original long-arm 3DR hex drone. Of course with some modifications. My original plan was to add a gimbal to carry a DSLR camera for photography, but I never got around to it. In my tests I was able to lift 3 pounds of dead weight. Includes: APM2 Autopilot 3DR Radio Telemetry transmitter and Receiver (915MHz).…See More
Sep 25, 2014
Stephen R Mann commented on Pedals2Paddles's blog post IMPORTANT: FAA Notice of Proposed Rule Making
"PV = Present Value."
Sep 12, 2014
Stephen R Mann commented on Pedals2Paddles's blog post IMPORTANT: FAA Notice of Proposed Rule Making
"Number 3 is more real than you realize -  Many years ago the FAA renumbered FAR Part 61 to move everything to odd-numbered paragraphs. When you see an even number, you know that the information was inserted since the Great Renumbering in 1991.…"
Sep 11, 2014
Stephen R Mann commented on Paul's blog post FAA Scans the Internet For Drone Users; Sends Cease and Desist Letters
"I have been a commercial pilot and Cessna owner for 25 years, so I know a bit about the FAR's and the FAA. 1. The FAA has always operated on the basis of two categories of UAS, light and heavy.  Regulation of light UAS are all that we…"
Sep 11, 2014
Stephen R Mann commented on Paul's blog post FAA Scans the Internet For Drone Users; Sends Cease and Desist Letters
"" If you are flying in your backyard, following the AMA rules..." Line of sight only, no FPV.  Don't you mean AMA restrictions?  The AMA has always been hostile to drones.  That the FAA is taking "advice"…"
Sep 9, 2014
Stephen R Mann commented on Paul's blog post FAA Scans the Internet For Drone Users; Sends Cease and Desist Letters
"Bill, if a Realtor uses the video for marketing, then the FAA considers your flight a commercial use. "
Sep 8, 2014

Profile Information

About Me:
Newbie
Please tell us a bit about your UAV interest
I am a pilot and photographer, but the best photos are closer to the ground than I can legally fly.
Hometown:
Westford, MA

Stephen R Mann's Blog

Drones in the news

Posted on January 10, 2013 at 1:30pm 0 Comments

Drones go mainstream

Click here for the full article.

 

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Prop Clearance

Posted on October 18, 2012 at 8:32am 3 Comments

After a crash, two of the arms on my 3DR Hex shifted slightly.  Enough that the props overlapped.  I didn't notice it for a while, but on a subsequent flight, they prop tips touched.  The hex didn't crash but the noise it made certainly got my attention.

My solution was to add more sonar mounting brackets to beef up the arm placements.  It also gave me more places to mount stuff.  (Copter is upside-down in the photo).…

Continue

Prop Removal Tool

Posted on September 28, 2012 at 4:30pm 3 Comments

I seem to be removing my props often, and I worry that my hand holding the motor while I torque the collett on or off is not strong enough and I certainly don't want to use a steel tool like a Channel Lock.  So, I use a small plumbers strap wrench, pictured below.

This one is overkill because it is made for, well,…

Continue

Source of 3mm standoffs

Posted on September 27, 2012 at 8:13pm 15 Comments

Here's a source of 3mm standoffs, like the ones under my GPS module.  They are available at any computer store that sells PC parts.  Fry's and Microcenter come to mind.…

Continue

Comment Wall (2 comments)

At 9:16pm on September 27, 2012,
Developer
Bill Bonney
said…

Totally understand, and I agree updating the post to explain the optical illusions, for want of a better term, is a best option in my opinion.

Good work on the other blog posts. I am new drone creator. I have gone the ArduPlane route with a Bixler. Haven't flown it yet, and it's broken. The joys of hobby electronics, though this issue is mechanical and one of the servo couplings for the aileron has broken. :-D 

At 9:21pm on September 27, 2012,
Developer
Bill Bonney
said…

PS: to be honest, the wikis could be much better in describing how to set-up these boards, especially, if like me you are just plug and play and not necessarily wanting to look at eagle files and schematics all the time. Maybe you could update the wiki to add the GPS connection for APM2.5?

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