Model Boat Mayhem
Mess Deck: General Section => Model Boating => Topic started by: essex2visuvesi on September 03, 2010, 10:16:37 am
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I am at the stage of my phantom where I need to install the prop tube prior to final finishing of the Hulll
I am not keen on the BB supplied prop and would prefer to use a rasobech propshaft as it looks more prototypical
However I have a small problem, the rasobech is rated for 10K rpm and the reccomended speed 400 motor is 16-18Krpm
What motor would be better to use?
Im pretty sure that the prop would need to be changed as well.... suggestions on this would be appreciated as well
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Check out the Deans Marine site. They do Raboesch prop shafts and props.
The Deans Motors are excellent as well .
If you click on the picture of the item you are interested in it will tell you what type of boat or the rpm that is recommended.
I always get my motors props and shafts from them.
http://www.deansmarine.co.uk/shop/index.php/cPath/5
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Your options seem to be either a slower motor or a smaller prop. The 400 series are all pretty fast little animals and wouldn't suit a prop of much more than 25mm diameter (ungeared, that is). I'd consider fitting a Speed 600 ECO - if it will physically go in there - and running it on 7.2v with something like a 30mm 3-blade brass prop. A 30mm dia Prop Shop 2-blade cleaver might be an alternative - start saving now!
No Load RPM @7.2v is around 11k and this motor draws a low current c/w some of the other Speed types.
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Thanks for the replies I think more prop research is required but I think the 600 route seems the best option for me as I already have one and I can make it fit easily lol
I will be using 2 cell lipos (7.4V)
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This might be of interest to you.
http://heliblog.moller-ilsoe.dk/#category8.2
It seems to open better in chrome. But then my explorer has been getting very fussy lately.
you have to click around a bit to get the phantom build. It is informative and the youtube videos are good. Think he went for a brushless of some sort?
enjoy
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This might be of interest to you.
http://heliblog.moller-ilsoe.dk/#category8.2
It seems to open better in chrome. But then my explorer has been getting very fussy lately.
you have to click around a bit to get the phantom build. It is informative and the youtube videos are good. Think he went for a brushless of some sort?
enjoy
Yes I have this on my bookmarks already. Xilsoe has been very helpful answering questions regarding his build and also given helpful advice with regards to modifications to make during assembly.
I beleive he used the standard propshaft on his one
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I think rasobech do a bb shaft rated up to 15,000 rpm?
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yes, they do, cornwall model boats have them
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Sorry I should have been more clear, I wanted one of the exposed props.... the ones at the bottom of the list
http://www.cornwallmodelboats.co.uk/acatalog/Raboesch_Precision_Propshafts.html
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tried this guy? I think he makes pretty much whatever you want.
http://modelboatbits.com/