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Author Topic: Bait boat advice needed  (Read 8257 times)

malcolmfrary

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Re: Bait boat advice needed
« Reply #25 on: May 22, 2012, 04:23:39 pm »
Having had yet another look at the OP and the size and space available, a pair of 545s driving 35-40mm props via direct drive should shift it nicely, while leaving the chance of building it light enough to have enough freeboard to keep it visible. 
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"With the right tool, you can break anything" - Garfield

Mad_Mike

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Re: Bait boat advice needed
« Reply #26 on: May 22, 2012, 04:35:41 pm »
youl need 2 of these:

http://www.ebay.co.uk/itm/Outrunner-850kv-C4240-brushless-motor-EMP-shaft-5mm-RC-aircraft-model-RED-/130691494805?pt=Radio_Control_Parts_Accessories&hash=item1e6dd1f395

2 of these:

http://www.ebay.co.uk/itm/PLASTIC-PROPELLER-45MM-M4-THREAD-X-TYPE-SPORTS-/200708367028?pt=UK_ToysGames_RadioControlled_JN&hash=item2ebb26a2b4

the large diameter motors and low kv will provide a lot of torque and keep the amps down

2 of these with m4 one end and 4mm plain other dont know what lenght though. youl need to tell mark what ends you want

http://www.ebay.co.uk/itm/MMB-M4-4-12-STAINLESS-STEEL-PROPSHAFT-/280881620157?pt=UK_ToysGames_RadioControlled_JN&var=&hash=item8710878df3

2 of these:

http://www.ebay.co.uk/itm/UNIVERSAL-MODEL-BOAT-COUPLING-5-0mm-Plain-Various-Sizes-/190582629248?pt=UK_ToysGames_RadioControlled_JN&var=&hash=item72180d77f5

this:

http://www.hobbyking.com/hobbyking/store/__8337__Hobby_King_2_4Ghz_4Ch_Tx_Rx_V2_Mode_1_.html

esc's you need 2 esc's one for each motor and i think these will do it and they have reverse. BUT im not sure. Im guessing that the amp draw will be low enough for the 35's to be sufficent, but you will need to place a 30amp fuse in the main power leads going in to the esc's. If you can spare the cash play it safe and get the larger 60 amp ones.

http://www.ebay.co.uk/itm/HOBBYWING-SEAKING-35A-Water-Cool-RC-Model-Ship-Brushless-Motor-ESC-SL180-/300703727548?pt=UK_ToysGames_RadioControlled_JN&hash=item460356bfbc

http://www.ebay.co.uk/itm/SEAKING-60A-Water-Cool-Ship-Brushless-Motor-ESC-SL175-/390249326975?pt=UK_ToysGames_RadioControlled_JN&hash=item5adcac297f

you need 2 run both motors of 8.4v. Now im a bit stuck here of what type of batteries to pick

if you use the 35 amp esc'a the total comes to around 132 quid which gives you about 48 quid to buy a battery and the charger to charge it.

2 of these:

http://www.ebay.co.uk/itm/8-4V-3700mAh-SC-NiMH-rechargeable-battery-pack-/230748438664?pt=UK_Sporting_Goods_Paintballing&hash=item35b9adc088

and this:

http://www.ebay.co.uk/itm/Intelligent-600mA-Charger-7-2V-8-4V-9-6V-Batteries-/230748451584?pt=UK_ToysGames_RadioControlled_JN&hash=item35b9adf300

the total of these items, i have accounted for combined postage so the ones where you buy 2 of you may get a discount. it should tally up 2 about 180 quid
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dionysg

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Re: Bait boat advice needed
« Reply #27 on: May 25, 2012, 10:02:01 am »
Hello all
Sorry for the late reply but had some urgent family stuff. When i get my head straight i ll come back with more questions  :} :}
Thank you all for your time to help a newbie
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