ESC

[ashley needhamParticipant @ashleyneedham69188]

My sunderland would therefore make a good bait boat!  however If I was to design a bait boat it might look suspiciously like a mine sweeper complete with sweeping gear with big hooks on the end…. Ashley

[jimbo68Participant @jimbo68]

Probably one of those magazines where the first issue is £1.99 and all the rest are a ridiculous price that I won’t be able to afford.

Took the boat out yesterday, ran it in the water for about 5 mins then brought it back in. The LM2940 chip, the FET and the heatsink were slightly warm, not hot at all. What does that tell you ?

And no, I didn’t catch any carp,

[Penny LeeParticipant @pennylee76979]

jimbo68 wrote (see)

Took the boat out yesterday, ran it in the water for about 5 mins then brought it back in. The LM2940 chip, the FET and the heatsink were slightly warm, not hot at all. What does that tell you ?

Do you want a 50 part bulleted list?
It tells me:-

1.  The speed control is working
2. It will get warmer when you catch some weed.

Do I get a sweetie?  and   Would a scale trawler work better?

[jimbo68Participant @jimbo68]

yes Lee, you get a fishermans friend.  And I won’t be catching any weed due to the propeller guard I hand crafted from some lolly sticks and fine wire mesh. The stuff Onion’s are bagged in. haha

[jimbo68Participant @jimbo68]

I have a sneaky feeling it’s running on 12v

[jimbo68Participant @jimbo68]

The negative from both batteries go to one terminal and the positive from both batteries goes into another terminal, there is a brown wire that connects these two terminals. Does that mean the electrics in the boat are running off both batteries – 12v ???

[Mike DavidsonParticipant @mikedavidson22772]

 Well done Jimboyou have nearly exhorcised the demons in your mind, I started to get a good clear picture of what is going on. If your black wire goes to BOTH battery negatives and the brown wire goes to BOTH battery positives, you aRE defINITELY RUNNING ON 6 volts or 5.5 if your batteries are part charged. If your motor is a 7.2, it will only run at 66 % and nice and quietly too. I am still perplexed as to Where does your receIver get its supply from, abd if it is from the lead acid cells it should have a common connector, and   I think it should be the negatives so the output going to the speed controller has a reference, I guess this is why you snip the red lead and not the black, .What do Penny Lee and AShley think   ?   By the way Ashley, I was chatting to a chum in Morrison;s today about Shorty, and he told me that he had made a Princesswhich was most difficult to get on the plane, but was fascinated I am going to get him to log on to model boats and read your article. He did work on a sunderland when he joined th RAF many moons ago Five minute break, bye  ……………………………………….

[60wattParticipant @60watt]

jimbo68 wrote (see)

The negative from both batteries go to one terminal and the positive from both batteries goes into another terminal, there is a brown wire that connects these two terminals. Does that mean the electrics in the boat are running off both batteries – 12v ???

I take it you don’t have a voltmeter?

Help us out a bit ,Jimbo, and tell us what it does with one battery in each position with the other…..open……then shorted together with a  lamp.(in case they are wired for 6 volt 8 amp hours)

Do you know the difference between series and parallel ?

Tom

[jimbo68Participant @jimbo68]

60watt said the esc is powering the receiver via the red wire on the 3 wire connector cable Mike. The bec circuit will maintain a 5 volt output with as little as a 5.5 volt  input, if that helps.

[jimbo68Participant @jimbo68]

Its like Mike said Tom, black from esc to both battery negatives, brown from both battery negatives to both battery positives. The receiver doesn’t have pencells. I didn’t see your post, I haven’t a clue what you mean

[Mike DavidsonParticipant @mikedavidson22772]

If the negatives go to one terminal. and the positives to another, with a brown wire connecting the two termiALS TOGETHER I would expect the brown wire to be the source of the heat if not naked flamesAND, the battery voltage to be zero jimbo, get youself a four pencell battery holder, and use it to power your radio and servoand connect your receiver negative to ESC negative. I am assuming that you have one radio channel output plugged into the ESC !!!!!!!!!You may have the negatives connected by the same route (Worth a check! )!!!!!!!!, t is worth confirming that one radio channel also goes to the rudder servo, confirm this works too Jimbo. Do you have a method of releasing the bait ? Do Tell……..

 Ashley’s dying to have a go at this, I can let you have a plan for some bomb bay doors Ashley or you migh t like to consider some underwing stores like the depth charges they carried during the war

[jimbo68Participant @jimbo68]

 I knew I shouldn’t have said anything, there is no heat coming from anywhere. Yes the esc stopped working properly, but because of water. There was no heat in the first place, I just wanted to know that when the boat was running if the esc might get too hot If I boxed it. It only gets slightly warm so I guess I can, I’ve changed my mind about that anyway, I am going to cover the opening to a ALL of the innards.

The Rudder servo has two rods connected to spring mechanisms. When I use full port, or full starboard the springs pull a small stud which the hoppers are latched to, the hoppers are spring loaded and when unlatched they lift open. Pretty good idea I’d say – no electronics involved at all. The boat has been built from a kit y’know, well I say a kit, the hull has been specially built from fibreglass by a company in wales and the rest has been done by whoever had it built.

[jimbo68Participant @jimbo68]

Big Bessie. My Bait Boat, the cause of everbody else’s problems

[60wattParticipant @60watt]

jimbo68 wrote (see)

Its like Mike said Tom, black from esc to both battery negatives, brown from both battery negatives to both battery positives. The receiver doesn’t have pencells. I didn’t see your post, I haven’t a clue what you mean

Can you see why I have a problem with your description?

That’s insane!

[60wattParticipant @60watt]

jimbo68 wrote (see)

60watt said the esc is powering the receiver via the red wire on the 3 wire connector cable Mike. The bec circuit will maintain a 5 volt output with as little as a 5.5 volt  input, if that helps.

Yes but if one 6 volt is for the receiver and one for the motor then LM2940 switches to high impedance (called mirror image protection where a 7805 would be destroyed)

I hadn’t excluded that because I don’t trust your wiring description as it would not work.

If you understood and ran the tests I suggested you can find out if you have two 6v batteries in parallel for 6v or "one for receiver,one for motor"

Does it work with one effing battery?????????????????

Edit:: My dinner is ready.    Bye!

[jimbo68Participant @jimbo68]

then shorted together with a  lamp.(in case they are wired for 6 volt 8 amp hours)

you do me a favour 60watt, you should try and remember I make as much sense to you, as you do to me. Hope it’s something nice your avin.

[60wattParticipant @60watt]

If batteries are connected for 6 volt and running bec off that six volt the lamp would both literally and figuratively  light up!

If you did a dead short BANG!

Edit:

I new I should have finished both courses cos this is going nowhere fast.

[jimbo68Participant @jimbo68]

Yes – it works with one effing battery !!!!!!!!!!!!!!!!!

[jimbo68Participant @jimbo68]

the babies cryin, the other two r still up, the mrs has just gone to work and I havent eaten all day – bye

[60wattParticipant @60watt]

Now……………..

It is not 12 and so bec does not get warm.You gave me and Lee a bum steer.

it could be that the other slot……………….

powers the receiver

or

is in parallel.Which means the brown wire is an anti codensation heater but it can not be a wire.

A short is a "link" a "wire" of some sort.

Jimbo,Lee…………I always post with the possibility that the other posters are cranks after Fatcat gave just as hard a time.

I thought he was there to yank a chain a fortnight or more before he stopped pissing about

[jimbo68Participant @jimbo68]

yeah, I was just about to say the exact same thing   Do you know now what I have been trying my hardest to tell you. Any need any more for me to knacker one of my lamps ???

What did you have then Tom, I’m gonn have fish n ships 

[jimbo68Participant @jimbo68]

I’m not trying to piss anyone around, how easy do you think this is for me ? I genuinly would like to know about this stuff. Just as barkin as you lot I guess.

[60wattParticipant @60watt]

I’m fed up running up and down the stairs.

[jimbo68Participant @jimbo68]

sorry to hear  your’e bored with trying to get fit 60watt

[jimbo68Participant @jimbo68]

right then, lets move on to anti condensation heaters shall we, whats one of those ? lol

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