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Author Topic: Robbe Magin 1  (Read 15436 times)

Mal X

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Robbe Magin 1
« on: November 25, 2009, 04:36:04 pm »

i'm looking for a really powerful brushless motor for her....prop size is either 39mm or up to 48mm, budget for motor is 70 quid, but i might go higher for something red hot, but not a Lehner just yet, that's too much money.

now, there is a brushless motor option already available for her, but it's not powerful enough    :-)) :-))

also, i need help with regards to ESC and battery cell size, i want this boat to really fly

thanks
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HS93 (RIP)

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Re: Robbe Magin 1
« Reply #1 on: November 25, 2009, 04:50:10 pm »

how much do you want to spend on the esc, that will limit the motor and batteries, if you want to have more than one run that is.


peter
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Mal X

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Re: Robbe Magin 1
« Reply #2 on: November 25, 2009, 07:40:25 pm »

well i can get 60A for about 70 quid, but i'm no expert....but the most powerful engines seem to go up to about 85 A  
« Last Edit: November 25, 2009, 07:50:19 pm by Mal X »
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HS93 (RIP)

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Re: Robbe Magin 1
« Reply #3 on: November 25, 2009, 09:22:50 pm »

You said you wanted a really powerful motor, they need something like this,the cheap ebay ones are ok if you half the amps they say for reliable running and if you compare the controle you can get with the likes of the castle there is no comparison, the cheap ones are a pain to set up and are like an on off switch, for that price of speed controller look at  http://www.overlanderbatteries.co.uk/index.php?option=com_virtuemart&page=shop.browse&category_id=165&Itemid=69 I have seen a lot of these go well

http://www.castlecreations.com/products/hydra.html

http://www.castlecreations.com/products/hydra_hv_line.html


peter
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Mal X

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Re: Robbe Magin 1
« Reply #4 on: November 26, 2009, 12:55:40 am »

i think this one will do, Xpower 3674/06 110A, it's 540 size  :-))

http://www.rcworldwide.com/v5/product_info.php?info=p869_Xpower-540-3674-6-Brushless-Motor.html

this is the same motor as used in the AsTec boats; capable of 90kmh
« Last Edit: November 26, 2009, 01:00:26 am by Mal X »
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HS93 (RIP)

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Re: Robbe Magin 1
« Reply #5 on: November 26, 2009, 03:03:02 am »

If you are talking about the Feigio motors they don't do one that wind, thats a purple motor. when you look at brushless motors forget size( Psychical) it means nothing its amps and KVA ,watts. that is a car motor designer to be geared, its a high KVA motor the way to get speed is to go for a low KVA and a big prop they are very tourkey brushless motors

anyway let us know how you get on

peter
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Mal X

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Re: Robbe Magin 1
« Reply #6 on: November 26, 2009, 07:40:19 pm »

so what do you recommend, i need to talk to somebody because i cant find anything out online, because all the motors seem to be similar to this.

i.e look at the motor in this boat, because it's similar.... http://www.astecmodels.co.uk/catalog/product_info.php?products_id=752

and the motor i chose was from a fast electric boat shop
« Last Edit: November 26, 2009, 07:42:41 pm by Mal X »
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brodjack

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Re: Robbe Magin 1
« Reply #7 on: November 26, 2009, 08:47:05 pm »

Malc,your hull is a mono2 class size.
You want to be looking at a 2000kv XL size motor running on 4S lipo.can size does matter with FE boats as the larger motor will disapate heat quicker.
 Fiegao 540XL8 motor,these speedcontollers are ok on 4S,i run one with a 4S lopo and it works well.
http://cgi.ebay.co.uk/Marine-180A-WCooled-Brushless-Boat-Speed-Controller-ESC_W0QQitemZ220517071031QQcmdZViewItemQQptZUK_ToysGames_RadioControlled_JN?hash=item3357d778b7
Lipo a minimum of 5000mah and preferably a 30C one.
http://www.hobbyking.com/hobbycity/store/uh_viewItem.asp?idProduct=9516
You will need a cooling jacket for the motor too.
the set up will run well with a X442 prop.

Seems the hull is plastic? so a powerfuller setup would be unwise.
Brod..
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Mal X

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Re: Robbe Magin 1
« Reply #8 on: November 26, 2009, 09:48:43 pm »

thanks, yes the hull is thin styrene; so not very strong
« Last Edit: November 26, 2009, 09:52:42 pm by Mal X »
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martno1fan

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Re: Robbe Magin 1
« Reply #9 on: November 28, 2009, 02:17:45 pm »

Id save your expensive  fe gear for a glass hull if i were you because the first time it hits anything at speed it will fall apart,just been honest.Styrene is fine for slow boats but i wouldnt use it for fast electrics its just too weak.
Mart
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Mal X

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Re: Robbe Magin 1
« Reply #10 on: November 28, 2009, 04:08:26 pm »

yes and i'm a bit upset about it, because Robbe are supposed to be a good company, i predict the transom will be ripped out, it really is that thin, it's like paper, i've reinforced it, but i dont trust it
« Last Edit: November 28, 2009, 04:10:58 pm by Mal X »
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martno1fan

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Re: Robbe Magin 1
« Reply #11 on: November 28, 2009, 05:25:07 pm »

Theres some good cheap glass hulls knocking arround if you know where to look.
Mart
These look good for the price,ask him for some setup info and some video he has some.They also self right without a chamber due to the offset canopy.
http://cgi.ebay.co.uk/Fast-Electric-Model-Boat-Zoom-I-fibreglass-moulding_W0QQitemZ140357596064QQcmdZViewItemQQptZUK_ToysGames_RadioControlled_JN?hash=item20adf6f3a0
Also these seem popular,Johhny is good to deal with too
http://cgi.ebay.co.uk/25-Fibre-glass-deep-V-hull-for-electric-RC-boat-white_W0QQitemZ280422949051QQcmdZViewItemQQptZRadio_Control_Parts_Accessories?hash=item414a82a0bb
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brodjack

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Re: Robbe Magin 1
« Reply #12 on: November 28, 2009, 06:34:40 pm »

Those Zoom hulls wont selfight without a lot of work done and also using heavy outdated nimh cells.
Heres a good s/h mono2 race hull by a good company,self rights perfectly and runs great on 4 S lipos.
Most of the race guys use these.
http://www.astecmodels.co.uk/bb3/viewtopic.php?f=8&t=972
Brod..
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john54

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Re: Robbe Magin 1
« Reply #13 on: November 28, 2009, 08:45:29 pm »

Hi
If you just want a bit of fun on a budgit go for the Zoom  :-) But if you want to race its the Astec  :-)) Been running a Zoom 2 for a while now Megamotors 20/22/2 , Seaking 60amp  e.s.c , lipo 4s 30c go,s very well but need to be a tad carefull when on turns  {:-{ She will not selfright unless she has loads of weight on the left side :((
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john54

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Re: Robbe Magin 1
« Reply #14 on: November 28, 2009, 08:47:18 pm »

Sorry the motor is a 22/20/2
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Mal X

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Re: Robbe Magin 1
« Reply #15 on: November 28, 2009, 11:34:17 pm »

for Magin 1, i'm building a new self-righter; out of styrene plumbers pipe  :D but i should have brought the AS tec mono when i had the chance, but not much room for a self-righter put me off. i've strengthened her transom and underside, but i've gone too far now to chuck her in the bin and start again; she'll be ok.  :-))

i'm going for a powerful motor and if she fulls apart, well what, these things happen  %%

but i think Magin 1 will be ok, it's good experience for me, then after that; i'll get the Large 53'' cat ``drambuie on ice`` from germany or the Swiss cat, not sure yet, but it'll be top spec only, so i need to save loadsa dosh, the Plettenberg motors will cost a fortune  :-))

i'm painting Magin 1 bright red plasticoat, plus i've designed the transfers too.



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martno1fan

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Re: Robbe Magin 1
« Reply #16 on: November 29, 2009, 12:05:20 am »

Hi
If you just want a bit of fun on a budgit go for the Zoom  :-) But if you want to race its the Astec  :-)) Been running a Zoom 2 for a while now Megamotors 20/22/2 , Seaking 60amp  e.s.c , lipo 4s 30c go,s very well but need to be a tad carefull when on turns  {:-{ She will not selfright unless she has loads of weight on the left side :((

He told me he had changed the cowl design so it will self right ?i know the hulls been arround a cpl of yrs but he told me this ones a newer version but ive not tried one so im not sure if thats true or not.Not to worry though ill be releasing a selfrighting hull myself next year.
Mart
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Mal X

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Re: Robbe Magin 1
« Reply #17 on: November 29, 2009, 12:52:23 am »

He told me he had changed the cowl design so it will self right ?i know the hulls been arround a cpl of yrs but he told me this ones a newer version but ive not tried one so im not sure if thats true or not.Not to worry though ill be releasing a selfrighting hull myself next year.
Mart

yes, i think the large cat will need self righting too, the problem is one of the engines will be in the way, or take a spare model boat with you, with a toe hook, a little rescue tug  :-))
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Mal X

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Re: Robbe Magin 1
« Reply #18 on: November 29, 2009, 01:02:41 am »

He told me he had changed the cowl design so it will self right ?i know the hulls been arround a cpl of yrs but he told me this ones a newer version but ive not tried one so im not sure if thats true or not.Not to worry though ill be releasing a selfrighting hull myself next year.
Mart

no it doesn't self-right because i spoke to him on the phone, but this one below does; plus it's quite fast as well

http://jperkinsdistribution.co.uk/detail.php?JPNO=5502430&activepage=1&Navmain=Materials&subcatname=RTR%20Boats/Yachts

these chinese are taking the market by storm, they're stuff is everywhere, but they dont reply to your emails, because i tried to buy that engine from HONG KONG, much cheaper, but maybe i'm supposed to just order it online, but i'm not sure if i'm able to purchase from so far away from here in the U.K, it feels a bit scary to do so, because that engine only costs 28 quid over there  {:-{........... maybe i'm being too suspicious, but to me it feels a bit dodgy.

http://www.rcworldwide.com/v5/product_info.php?info=p869_Xpower-540-3674-6-Brushless-Motor.html

it's this outfit, take a look please, but the rest of their website looks poor; especially the very few speed controllers
« Last Edit: November 29, 2009, 01:20:39 am by Mal X »
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Mal X

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Re: Robbe Magin 1
« Reply #19 on: November 29, 2009, 01:43:43 am »

ALSO, on electric engines; does more turns give you more torque, because less turns definitely seems to give you more speed but higher Amps.





 
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martno1fan

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Re: Robbe Magin 1
« Reply #20 on: November 29, 2009, 01:50:57 am »

If he told you on the phone it doesnt then hes a lying **** then because even on his advert it says exactly what he told me lol.Just shows you cant trust some people  %).
 Ive never used that Chinese company but ive used others and ive never had a problem with getting stuff from them,cheaper than anywhere else in the world and shipping is cheap too.Youd be amazed how much of a markup some  ratailers put on the same gear they buy from them  O0.Take that jperkins company those engines theyre selling at 159 you can sometimes buy direct from Germany for 30-40 quid i bought two and sold em on.
Mart
http://jperkinsdistribution.co.uk/detail.php?JPNO=HEB3005&activepage=1&Navmain=Marine&subcatname=RTR Boat Spares
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Mal X

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Re: Robbe Magin 1
« Reply #21 on: November 29, 2009, 02:11:12 pm »

http://www.astecmodels.co.uk/catalog/product_info.php?cPath=97&products_id=752

this i the one i'm talking about, and the smaller version, sorry  :embarrassed:

yes, the ``purple race 540 size brushless engines are far cheaper in HONG KONG, only about 28 quid, but they dont sell a decent speed controller for it, i'm going to have to research this ``Chinese connection`` much more before buying.

the main manufacturer seems to be DRAGON, but they seem to be wholesale only, even so; there must be many model shops in HONG KONG/ SHANHAI, because DRAGON use the same purple motors that over here coat 70 quid, these boats are the ones that AStec sell, they buy direct from China   
« Last Edit: November 29, 2009, 02:24:25 pm by Mal X »
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Mal X

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Re: Robbe Magin 1
« Reply #22 on: November 29, 2009, 03:50:35 pm »

http://www.himodel.com/

this place looks good, i can get the  Seaking 90A ESC for 40 quid, or 100A for not much more, plus the Feigho 540XL8, all for 86 quid, the same from AStec models costs 130 quid

 
« Last Edit: November 29, 2009, 04:10:23 pm by Mal X »
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martno1fan

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Re: Robbe Magin 1
« Reply #23 on: November 30, 2009, 10:54:09 am »

Electics are not my thing i prefer the smell and sound of 2 strokes  ;).Most everything electrical comes from China or Taiwan though  :-).
Mart
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Mal X

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Re: Robbe Magin 1
« Reply #24 on: November 30, 2009, 04:30:17 pm »

well i've built Magin's new self-righting, out of 2'' dia PVC drain pipe tube, she looks ok, lets hope it works.

after this, she's ready for her Undercoat and then the gloss red, plus the new decals.

finally i'll install the electrics/ rudder/ trim tabs  etc
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