HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
<<  <  Page 2/2
tekochip
User Rank
Platinum
Re: How many rotors?
tekochip   4/3/2013 8:46:22 AM
NO RATINGS
Most of the inexpensive choppers are contra-rotating, they have two main rotors that spin in opposite directions, and are really stable and easy to control. Changing the speed of the two rotors makes the bird yaw, rotor speed controls lift, and there's a conventional swash plate for pitch, which is the only servo needed.


Charles Murray
User Rank
Blogger
Big problem
Charles Murray   4/2/2013 8:22:55 PM
NO RATINGS
Wow...if that last sentence is true, it's an amazing oversight on the part of the manufacturer. All of the controllers would potentially have this problem. And most of them -- at least the ones not sold to a mechanical engineer -- would have to be replaced.

Ann R. Thryft
User Rank
Blogger
How many rotors?
Ann R. Thryft   4/2/2013 2:33:55 PM
NO RATINGS
I'm curious, how many rotors does the helicopter have, i.e., is it perhaps a quadrotor/quadcopter?

apresher
User Rank
Blogger
Happy Son
apresher   4/2/2013 1:12:42 PM
NO RATINGS
Great story.  Hopefully your son also got exposed to the scientific method when you managed to find and fix this problem.

Brentlim
User Rank
Iron
Happy Son
Brentlim   4/2/2013 9:29:25 AM
NO RATINGS
Sounds like you had a son happy for an engineer dad! Good reminder how important product testing is. Perhaps it was a problem on one of several assembly lines and not all were tested?

<<  <  Page 2/2


Partner Zone
Latest Analysis
Technology has proven over and over again to be tremendously empowering, to individuals and organizations alike. Misuse that power, however, and you might find yourself in big trouble.
Steadfast in its belief that diesel engines are right for the times, General Motors is expanding US availability of the compression-ignited technology in Chevrolet cars and light trucks.
Most cyber attacks could be avoided by adopting a list of Critical Security Controls that were created by the Center for Internet Security. That’s the message from Steve Mustard of the Automation Federation.
How 3D printing fits into the digital thread, and the relationship between its uses for prototyping and for manufacturing, was the subject of a talk by Proto Labs' Rich Baker at last week's Design & Manufacturing Minneapolis.
The term “range anxiety” began fading into the rear view mirror recently, as major automakers made announcements about longer-range, battery-powered cars.
More:Blogs|News
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Sep 12 - 16, Analytics for the IoT: A Deep Dive into Algorithms
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7 | 8 | 9 | 10


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Technology Marketplace

Copyright © 2016 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service