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What hull is this??

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What hull is this??

Old 09-14-2008, 09:39 PM
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OziMike
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Default What hull is this??

Hey guys, I've had this boat for a few years now i bought it second hand and got it going. Just wondering if anybody knows what hull it is?? Its really heavy fibreglass, almost flat at the back, deep v at the front. I've been told that the motor is a Thunder Tiger .21. Any ideas ???
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Old 09-17-2008, 01:32 AM
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OziMike
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Default RE: What hull is this??

Here are some more pics if the boat if it helps.
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Old 09-17-2008, 07:20 PM
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Espiga
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Default RE: What hull is this??

It seems to me a very very old FSR-V hull.
Old 09-19-2008, 08:48 PM
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OziMike
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Default RE: What hull is this??

cool thanks for that Espiga, what about the motor?? Anyone know what it is?? Its got no writing or markings on it,Still got great compression though
Old 09-19-2008, 09:26 PM
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misshydro
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Default RE: What hull is this??

you have to get close up and better pic of that motor. The water cooling head botton looks just like my LEO.21!!!That not a thundertiger motor. wondering if that an old LEO motor???here there websight.[link]http://www.leoengines.com/eng/Products/ProductsList.asp?parentUID=3&CateUIDList=0,3[/link]
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Old 09-20-2008, 06:38 PM
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Default RE: What hull is this??

Thanks for that misshydro,looks identical apart from the red top. Here are some better pics of the motor.
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Old 09-21-2008, 06:38 AM
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Espiga
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Default RE: What hull is this??

It would be good if you could show the bottom of the hull.
About the engine I can say only two things. It seems to me to be a .21 with one "OS" type carb and you will have some work to put the engine in running condition.
Could you give the sze of the hull?
Old 09-21-2008, 06:04 PM
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OziMike
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Default RE: What hull is this??

thanks for the info Espiga.The hull is 25 inches long.
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Old 09-21-2008, 06:19 PM
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Espiga
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Default RE: What hull is this??

Let´s imagine the engine is in good shappe. I would mount a mocom Propeller 1816 ( you can buy at prestwich models UK) a fuel tank and would go to the pound. A 25% nitro fuel with at least 15% castor oil.
Firstly check everything and then try to run the boat.
Good Luck
P.S. In the past around 1970, more or less, such a kind of hull would need a .40 engine, but this was 38 years ago.
Old 09-22-2008, 03:59 AM
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OziMike
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Default RE: What hull is this??

Does that mean that the hull is 38 years old!! sorry but I've had the boat going for 3 months now. Its got a Octura 1240 prop on it, and i first started it on 20% but it wasnt really that fast so im currently running it on 40%. The motor still has great compression and on 40% its pretty quick. I will post up some shots of her in the water when i get a chance to take it out.
Old 09-22-2008, 05:53 AM
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Espiga
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Default RE: What hull is this??

I don´t know the age of this boat, but the type of the the hull´s shape that is in the photo is about 38 years old. The size and type of the propeller I gave you is a starting point. As everybody knows the best way to find th right propeller is to try. If your boat is running it´s great. Try some submerged type propellers around 40mm diameter.
Old 09-23-2008, 03:16 AM
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OziMike
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Default RE: What hull is this??

Thanks for that Espiga. I think the prop i have on it know is a 40mm but i not sure if its a submerged type prop. How can you tell the difference?
Old 09-23-2008, 04:20 PM
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Espiga
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Default RE: What hull is this??

Usually the shape of the blades is different as they work in different conditions
http://www.icboats.org/boat/document...nformation.pdf Here you have some good information.
Submerged propeller as a rule is more thinner in the trailing edge area.
About the Octra 1240 I think they work well as submerged but as you can see in this site
http://modelmarinesupplies.co.uk/sho...65e894b1708acc
They are too big for your engine.
I would try a mocom 1816 or a plastic Radio-Active X-35 5mm. The Octura X-438 may work (but it seems to me they are better for surface).
Old 09-23-2008, 06:39 PM
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OziMike
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Default RE: What hull is this??

Many thanks again Espiga. I will to try to find them props from an aussie store first only because postage will be more than the prop. Is there a noticeable difference between a metal prop and a plastic one?
Old 09-23-2008, 06:54 PM
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Espiga
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Default RE: What hull is this??

Yes there is difference, but this is important for racing. For sport use a plastic propeller is OK.

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