John, It is funny
that you should reference that web site. Have a look at the following URL
within that site: http://www.allstar.fiu.edu/aero/jay.htm
Years ago, I was one of the original developers of the web site…at
that time we built approximately 1200 web pages for aerospace education on the
web site. I agree with
you that hydraulics have their applications. If you work through the
physics for a 6 HP motor driving a hydraulic system, you will only get about 1.8
HP out of the prop after all the losses. Jet drive systems are even more inefficient.
I am sure your system will work but is it the most efficient for your money and
ease of construction? The latest
aircraft designs are moving to electrically driven systems replacing all
hydraulics. Hydraulics had previously been used for their dependability
and the linear force that could be developed at a remote location. R/Jay Respectfully, Jay K. Jeffries Andros Is., It is the mark of an educated mind to be able to
entertain a thought without accepting it. From: owner- For those of you who are intersted in hydraulicly driven
systems, you might want to take a look at the following web site: http://www.allstar.fiu.edu/aero/Hydr08.htm
You can learn a great deal about the basics of hydraulicly driven systems from
this site. From my own research, I would personnally say that they can be
operated at much more efficient levels than has been described recently.
I, for one, am designing my entire propulsion system around a 6 HP, 24V
hydraulicly driven pump system. There are a great many valuable resources on
the Net about hydraulics and their safe, efficient operations. I would
encourage folks to look further.... Regards, John
Gaertner |