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[manx venture]

hi,  is there such things as alternators/dynamos for models?  same idea as real boat engine, so when motor turns it drives a pulley on the shaft and round an alternator to charge the battery as you go along, has this been done and dos it work,
cheers
Darren

[Colin Bishop]

If you've got an electric boat and it worked then you would have invented perpetual motion! In fact any power generated by a dynamo would put an extra load on the motor much larger than the power generated by the dynamo and simply run the battery down more quickly.

If you have a i/c boat (as are full size vessels) you don't need a battery anyway!

Colin

[Netleyned]

Mamod used to do a belt driven dynamo for some of the static models
I seem to remember a pump house with a street light alongside it
I bet there is a steam launch out there somewhere with dynamo driven lighting!

Ned

[funtimefrankie]

An electric motor should act as a dynamo if driven.

Off topic interesting point.....Years ago I tied to make a generator with a lawn mower engine and a car altenator, it just stalled the engine... not enough power, I had to use a dynamo in the end.

[Netleyned]

Mamod used to do a belt driven dynamo for some of the static models
I seem to remember a pump house with a street light alongside it
I bet there is a steam launch out there somewhere with dynamo driven lighting!

Ned

http://www.mamod.co.uk/product_view_details.asp?pids=16&pr=1380%20Showmans%20Engine

They still do!

Ned

[john s 2]

A trawl of the Steam section on ebay should result in finding a suitable dynamo.Bing along with mamod and
Wilesco Make them. As said often used on scale Showmans Engines For the lights. John.