Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Aerospace About stabilizing a space rocket with a pendullum

  1. Oct 5, 2009 #1
    About stabilizing a space rocket using a pendullum

    There exists a competition called Google Lunar X Prize whose main objective is sending a rocket to the Moon. One of the contenders, team ARCA, is ready to launch a rocket (not a Moon rocket) about which they claim to be passively stabilized in vacuum by the swinging movement of some pendulums (the lower stages of the rocket).

    A self explicative nice animation regarding the rocket of ARCA and its stabilization method can be downloaded from the following address:

    QUESTION: Do you believe that the stabilization procedure in the animation could work in vacuum, at least theoretically?
    Last edited by a moderator: Sep 25, 2014
  2. jcsd
  3. Oct 5, 2009 #2


    User Avatar
    Staff Emeritus
    Science Advisor

    One does not stabilize a craft by pendulum motion, and it should be obvious why.

    Rotational gyroscopic motion is the appropriate means.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Threads - stabilizing space rocket Date
How do I calculate the forces on a guitar stand (Tripod type) Feb 17, 2018
How Missile ballast stability works? Apr 26, 2017
Combined Motion Gyroscope Aug 20, 2016
Space elevator stability Aug 27, 2005