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Author Topic: A step in the dark and something new  (Read 1461 times)


  • Sinjon
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A step in the dark and something new
« on: December 21, 2007, 04:08:18 PM »


 On my workbench at the moment is a 1/48 HMS Bulldog, almost finished.

To one side is a AsTec GTM Hydro, for me a step in the dark, I have got quite a way down the building line,thanks to Allan at AsTec,who has been very patient with my endless query's, but he has a business to run, and I wondered if there is anyone out there who has made a GTM Hydro, who can tell me a little about the final finishing and running.
I have never built anything so small, let alone fast, it's a fabulous little boat, and I am really enjoying the build, just need a little advice.


Fast Electricals

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Re: A step in the dark and something new
« Reply #1 on: December 22, 2007, 10:04:20 PM »

I built a GTM Snark2 hydro and ran it in 7 cells using a Graupner 480 Race motor and a Graupner 29mm plastic prop. It went like stink!!!
COG needs to be well forward in the hull with the balance point just behind the sponsons. A good rudder and turn fin is required to make it turn well. I added some plates and filler to the underside of the hull to sharpen the edges of the running surfaces. 

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