http://issuu.com/panzera/docs/issue_72
The builder did some innovative things and explains the use of the ammeter.
If memory serves, he also used a solenoid to engage (and disengage) the brushes so that the brushes only received wear when the pitch change was called for... but that may have been in another article.
...and for the rotary purest, there is a nice article on the Renisis engine in this same issue.
--
Thanks!
Patrick Panzera
Editor@ContactMagazine.com
On Wed, Jun 13, 2012 at 2:15 PM,
<Lehanover@aol.com> wrote:
Why in the world would IVO use a device that is designed to
fail critical flight gear in the case of improper control
manipulation when
they don't have to? Isn't this the classical and proper application for a
polyfuse? Polyfuses are
used in power windows for this exact reason. You're
kids can pull on that switch all day without damaging the window
motor. I'm
thinking of the case where a switch gets shorted (like my belt sander's switch
is right now...the power cord
is serving as a temp fix until I get time), or
someone accidentally leans something against the switch.
Why does the motor draw current after the pitch has been changed?
Lynn E. Hanover