"Did a little simulation on the school computers and found the best combo is larger upper props and high pich smaller low props the smaller the better obviously.
Other combinations include low kv top motor and high kv bottom motor and when in…"
3D Robotics
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Joshua Ott
- Male
- Fruita, CO
- United States
- Blog Posts (30)
- Discussions (155)
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techpod users
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Joshua Ott's Page
Latest Activity
Jared Reabow commented on Joshua Ott's blog post Thirty Days (#13): Y6 in-flight motor failure tests
Wiki NinjaGary McCray commented on Joshua Ott's blog post Thirty Days (#13): Y6 in-flight motor failure tests
"My guess is that you can get the overall efficiency improved somewhat by working on the prop combinations a bit more.
All other things being equal, the prop on the bottom should have a higher pitch than the one on top and the larger the diameter…"
Jack Crossfire commented on Joshua Ott's blog post Thirty Days (#13): Y6 in-flight motor failure tests"Now ignite the ESC on fire, like what usually happens."
Jared Reabow commented on Joshua Ott's blog post Thirty Days (#13): Y6 in-flight motor failure tests"I did a bot of research and found you loose 25% of your power and efficiency through this setup, so what you gain through redundancy you loose in flight time and power to weight, however i would rather have a copter that ;ands more often than a…"
Glenn M commented on Joshua Ott's blog post Thirty Days (#13): Y6 in-flight motor failure tests"Hi Max, when you say e-prop, are you referring to APC E props or the graupners?"
DeveloperMax Levine commented on Joshua Ott's blog post Thirty Days (#13): Y6 in-flight motor failure tests
"After testing Y6 setups for long time, I can tell there is no need for different speeds or prop sizes with prop size up to 12", also it much better to use E-props and not SlowFlyers, on 800-900KV motors with 4S lipos.If you want…"
ModeratorDavid Anders commented on Joshua Ott's blog post Thirty Days (#13): Y6 in-flight motor failure tests
"That's very good Josh. Especially like the motor failure setup. Question, is there a new Hex coming out that will be able to continue to fly with only 5 motors?"
Cliff-E commented on Joshua Ott's blog post Thirty Days (#13): Y6 in-flight motor failure tests"@Ian: Yes, it's a bit more abrupt initially as a motor power failure allows the prop to autorotate a bit to give the controllers time to adjust. With a prop snap, you lose power immediately and it will lean immediately to an uncontrollable…"
Ian Drennan commented on Joshua Ott's blog post Thirty Days (#13): Y6 in-flight motor failure tests"The motor out recovery looks impressive. Having had the misfortune of losing a propellor blad on my quad I was wondering whether the Y6 configuration would be able to recover from a propellor failure. I am thinking the resultant excessive vibration…"
3D RoboticsJoshua Ott commented on Joshua Ott's blog post Thirty Days (#13): Y6 in-flight motor failure tests
"John, you are definitely correct. There is an efficiency loss, but the gains overall are worth consideration. Joe did a bunch of testing and found that a 11x4.7 prop on the bottom and a 10x4.7 on the top are the best setup for the Y6."
John Maffetone commented on Joshua Ott's blog post Thirty Days (#13): Y6 in-flight motor failure tests"Very neat video!
On a Y6 configuration is there any adverse aerodynamic effect to having the lower propeller working in the airstream of the upper propeller? Seems like the thrust of the upper propeller will constantly be slamming against the lower…"
3D RoboticsJoshua Ott commented on Joshua Ott's blog post Thirty Days (#13): Y6 in-flight motor failure tests
"We'll get another one up soon. The flight ops guys down in San Diego are up here in the Bay area to attend Maker Faire this weekend. When they get back to home there will be more tests.
Here is an onboard view:
"
Jared Reabow commented on Joshua Ott's blog post Thirty Days (#13): Y6 in-flight motor failure tests"hmm would be nice if you made a more clear video, perhapse record at a higher angle or closer/zoom"
3D RoboticsJoshua Ott posted a blog post
Thirty Days (#13): Y6 in-flight motor failure tests
Testing out how the new Y6 responds to an in-flight motor failure. Not bad!See More
3D RoboticsJoshua Ott commented on Joshua Ott's blog post New prop mounts
"That's not a spacer, it's the mount.
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Profile Information
- About Me:
- Fabricator, farmer, mechatronics maker
- Tell us a bit about your UAV interest
- Video/photography, search and rescue
- Hometown:
- Fruita, Colorado
Joshua Ott's Blog
Thirty Days (#13): Y6 in-flight motor failure tests
Posted on May 17, 2013 at 6:00pm 13 Comments 4 Likes
Testing out how the new Y6 responds to an in-flight motor failure. Not bad!
Thirty Days (#12): Freeing Fozzie
Posted on May 16, 2013 at 2:00pm 7 Comments 4 Likes
After Brandon (3DR's Applications Engineer) rescued "Fozzie" from an undisclosed lab at UC Berkeley, the…
ContinueThirty Days (#11): The new factory in Tijuana is coming together
Posted on May 15, 2013 at 11:30am 4 Comments 8 Likes
Our new factory in Tijuana is coming together!
The ESD-safe flooring will be coated with a special wax.…
ContinueComment Wall (2 comments)
- At 5:11pm on January 29, 2013, Pierre Stoermer said…
Please contact us at pierre@dronemapper.com or jp@dronemapper.com. Thanks Josh
- At 12:59pm on March 26, 2013,
Jake Wells said… Thank you for the add.
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Season Two of the Trust Time Trial (T3) Contest has now begun. The fourth round is an accuracy round for multicopters, which requires contestants to fly a cube. The deadline is April 14th.A list of all T3 contests is here.
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