Model Boat Mayhem

The Shipyard ( Dry Dock ): Builds & Questions => Pleasure boats, Sports, Race, Power and Leisure Boats: => Topic started by: Lagaffe on November 23, 2010, 09:09:41 am

Title: Inverter on fuel engine model boat
Post by: Lagaffe on November 23, 2010, 09:09:41 am

It looks like this, inverter on the left and magnetic clutch on the right (can be replaced by centrifugal clutch)

(http://s1.postimage.org/11t7a6150/Inverseur.jpg) (http://postimage.org/image/11t7a6150/)

How does it work ?

(http://s2.postimage.org/33orf96jo/inverseur.jpg) (http://postimage.org/image/33orf96jo/)

A Lagaffe production

Title: Re: Inverter on fuel engine model boat
Post by: tobyker on November 23, 2010, 08:13:37 pm

REverser? Could be a differential type, or an epicyclic gearbox. It looks like a home made one, so you would have to see inside to find out how and if it works.

Title: Re: Inverter on fuel engine model boat
Post by: Lagaffe on December 02, 2010, 05:10:09 pm

"IF" it works ????
Of course it does ! I have two of them in my last Riva Aquarama scale 1/3.5
Now, if you want to explain how it works, it is no so simple. This is the first time I draw a mechanical system, and understand how it works later.
You can reverse at any engine speed if you have a centrifugal clutch instead of a magnetic clutch.
With a magnetic clutch you need a special electronic circuit to raise voltage slowly (so that the motor does not stop), and a switch to disable the clutch when throttle = 0