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[Gaci4]

I would of thought with having a dog in the back of the prop would of made them handed and CW and CCW, just the same as aeroplane props. Or am I wrong?

[pompebled]

Silly question which way does the prop turn ?

Whatever way you make the motor run...

DD props come in CW and CCW.

Regards, Jan.

[Gaci4]

https://www.modellbaucenterlorenz.de/en/props/2317-45-r-mit-drive-dog-mitnehmer-2-fluegelig.html
https://www.modellbaucenterlorenz.de/en/props/2317-45-l-mit-drive-dog-mitnehmer-2-fluegelig.html


So either one of these is fine ??

[martno1fan]

You need a L hand prop (thats normal rotation) , R hand is counter rotating for a twin setup .

[Gaci4]

I knew there was a difference cheers

[martno1fan]

normal rotating prop 

[Gaci4]

Which profile should the spray rails be 1 or 2 ??

[pompebled]

Hi Grant,

1) is what Martin showed in his pictures; it deflects the spray outward.

2) tucks the spray partly under the hull and may create lift you don't want (flight risk)...

Regards, Jan.

[Gaci4]

,so I'll go with number 1, would they go right go the tip like Martin's or fall short like yours

[martno1fan]

One is how all my spray rails are on my boats  and the boats run perfect .Ive never done spray rails as in pic 1 nor even seen any .
Id me more worried about the strakes underneath causing too much lift than the spray rails which is why i suggested not to install them untill later if needed. Or make them shorter and dont go to the transom ,stop short by around 6".You can see the angle on this old hull,not one of mine but gives you the idea,these are a tad wider than id do them but the angle is good.Do the spray rails all the way to front by leting sides hang a tad lower that way you can add filler to get the right profile and not need to glue on bits of wood .

[Gaci4]

Cheers Martin, yes I remember from a previous post that you advised not to add any Chines until I see how it runs. I'm just on for the spray rails and just need to know if they go right to the bow of get smaller and fall short??

[Gaci4]

On tne flycolor esc what of the 3 black cables are what as none of the instructions tell me so I've no idea, I assume the red and black on the same side are to the battery

[martno1fan]

Cheers Martin, yes I remember from a previous post that you advised not to add any Chines until I see how it runs. I'm just on for the spray rails and just need to know if they go right to the bow of get smaller and fall short??

No they go right forward tapering off towards the bow

[martno1fan]

Black wires are to the motor doesnt matter which goes where test and see which way the motor spins if wrong change any two wires thats it done. DO NOT TEST MOTOR UNTIL ITS MOUNTED IN THE BOAT ,or you could hurt your hand,i know a friend who held one and it broke his wrist OUCH.
https://www.youtube.com/watch?v=ZZ0gH4EAcOM

[Gaci4]

What is the best connector to use for the amp draw I see the cables are 10sw but what connector?..?

[pompebled]

What is the best connector to use for the amp draw I see the cables are 10sw but what connector?..?

I'm using 4 mm goldplated, as I have that as a standard in all my boats, but for the next build with the SSS4074- 2200Kv it's going to be 5 or 6 mm goldplated all around.

Regards, Jan.

[pompebled]

Something like this:
https://guide.alibaba.com/shop/3-pair-of-5-5mm-gold-plated-bullet-connectors-3-male-3-female_52608235.html

I have a handful of these lying around and without the cable soldered in place you'll need pliers to get them connected and disconnected...

Regards, Jan.

[Gaci4]

I've got a few xt60 and about a dozen ec5 left over from other projects they'll do then put ec5 motor side and after the series connector. Just need to get some swg cable

[pompebled]

Hi Grant,

If your EC5 are the sort with the spring cage on them, you'll need to solder the cage onto the connector on the foot (not the tip!), making sure the cage can still flex, in order to maintain a good connection.

Reason I mention this is the fact these cages present quite a lot of resistance when left loose, particularly after some use.
The connector will get hot as a result, to the point where the solder will melt and the cable can disconnect itself (= dead boat), been there, done that, just a few weeks ago: https://www.rcgroups.com/forums/showpost.php?p=38150352&postcount=207

Fixing the cage with solder should be done after the cable has been soldered in to avoid the solder dripping into the cage, ruining the connector.
Work fast, while securing the cable in the connector (cool it with a damp cloth) and use a big soldering iron, so the heating up is quick and only at the cage.

For the work and trouble, I'd rather get 'proper' 5,5 mm connectors.

Regards, Jan.

[martno1fan]

Hi Grant,

For the work and trouble, I'd rather get 'proper' 5,5 mm connectors.

Regards, Jan.

Totally agree keep it simple  .

[Gaci4]

Do you mean something like these as there just the same as the ec5 one justwith out the pladtic case
https://hobbyking.com/en_us/polymax-5-5mm-gold-connectors-10-pairs-20pc.html

[Gaci4]

These are the type I have lying around  https://hobbyking.com/en_us/new-ec5-male-5-set-per-bag.html

[pompebled]

Hi Grant,

Doesn't the link I sent, work?
Those are the short version, a bit less bulky in tight spaces.

These are longer:
http://www.ebay.co.uk/itm/5-PAIRS-RC-CONNECTOR-5MM-GOLD-PLATED-MALE-AND-FEMALE-BULLETS-PLUGS-/221674735378

Regards, Jan.

[Gaci4]

HI Jan, the connectors you just sent are just the same style as I have they are the solid slit type not the balloon versions.

[martno1fan]

Good tip for soldering them is i drill a cpl holes in some billet aluminium or steel sit the connectors in heat em up add solder and push the wires in ,job done .