discussion boatman's 1/72 HMS Tiger C20 build

[boatman]

So a 9.6v motor on a 12v battery..... Could that be the issue?
Looking at the motors you have given the info on I Would say that they are under rated for the system. As it says on the box you posted nominal 8.4v operating range 6 and 9.6v If you are feeding them 12v they are not going to play nice but you know that.
I would suggest a look at these from Krick. Max POWER 500.
https://www.krickshop.de/MAX-Power-...ick_e&SessionId=&a=article&ProdNr=42246&p=354
Pretty sure you can find them in the UK as well

I did not know that it was two motors per fuse and only two of the motors that are blowing fuses. (just guessing on the info given). Are the motors different form the ones that do not blow the fuse?

OK Ian no probs an cheers for that info on them motors

Or at least a voltage regulator/limiter someplace between the power source and the motor.
What do you recon on the motors I linked to Tim? I read that they can handle a screw of upto 100mm so they should be able to handle the 33mm screws on Tiger in their sleep.

Hi Chris
Tiger looks simply fantastic on the water - a magnificent and graceful looking model. Looks like you had a great day for it too.
It’s a shame about the fuse/motor issue cutting short the maiden voyage but I’m sure you’ll get it sorted.
Hope all is good with you and I’ve fingers crossed you’ll sort the motors in quick time.
All the best mate
Paul

Chris,
Wow, wow, wow she is an absolute beauty. Your hard work has been paid back in spades. It was a pleasure following the build and watching her come together and watching you problem solving. If we had one I would present the Golden dogs award. Fantastic seeing her on the water.

an cheers Scottie yes be nice come on JR get moulding a nice gold Doggs lol

@boatman Congratulations on the maiden voyage of your HMS Tiger, Chris. It really looks at home on the water and I am sure that you will sort out the gremlins in no time.

It has been a pleasure following your build and am now eagerly awaiting your next one....

Dave

an hello Dave glad you liked the build like i did an next one i just dont think there will be one as the age an mojo is takin a knockin

Beautiful Build ! and such technology is astounding........

many thank Tiger

Lovely photos of her on the water. Its been great following the build and loveryl to see her in her natural environment!

Peter

AN Cheers also to you Peter an glad you like her also an im glad this build has given all you guys this enjoyment

Congratulations Chris on a successful project launch.

John

an thank you JOHN AN ALL YOU GUYS
CHRISB

 

[Waspie]

Porton is two sites…..the Health (HPA and Porton Biopharma) side and the MOD (QinetiQ) side. It was split in the late 1970s. Trouble is, nobody seems to know about our bit, only the MOD part…..even news stories like the Novichok incident talked about the MOD but showed stock pictures of our bit…..

I was involved with an alarm in the early 70's. (Least said and all that).
Then when I started flying, all our maps were marked as no direct over flight of Porton and I believe it had a horizontal avoidance too!! (We all know why). Additional to that, Porton used to ask for volunteers from the military for 'tests'. (I listened to my father - never volunteer).

 

[Tim Marlow]

I was involved with an alarm in the early 70's. (Least said and all that).
Then when I started flying, all our maps were marked as no direct over flight of Porton and I believe it had a horizontal avoidance too!! (We all know why). Additional to that, Proton used to ask for volunteers from the military for 'tests'. (I listened to my father - never volunteer).

Don’t believe everything you read…….the tests by then were pretty benign as I understand it. I knew the guy that used to organise them, came to work for us in the mid eighties. Basically they were just running and jumping about in bulletproof kit to see if it was sufficiently ergonomically designed to be worn for long periods. The stuff everyone talks about was very early fifties, same time as the anthrax island experiments in Scotland.

 

[Waspie]

Don’t believe everything you read…….the tests by then were pretty benign as I understand it. I knew the guy that used to organise them, came to work for us in the mid eighties. Basically they were just running and jumping about in bulletproof kit to see if it was sufficiently ergonomically designed to be worn for long periods. The stuff everyone talks about was very early fifties, same time as the anthrax island experiments in Scotland.

Dropped scientists off on Gruinard Island, when I was on 819NAS in the 80's, (hopefully spelling is right). To test for Anthrax. Luckily - we never had to pick them up. I joined up in the late 60's so tales of Porton Down and the 'flu tests' were rife. (I still followed my dads advice).

 

[boatman]

HI ALL well ive taken them ole grauper motors out of tiger an now she already to receive some new engines when i go to wings an wheels at the end of the month an ive also just got to sort out a R/C plug that was also faulty an thats part of why i dont think the rudder wasnt workin properly an hence big turning circle an the other fault was on the bow thruster a tiny knock on switch was not makin connection properly so the bow thruster dint work properly an i think it was to do with the heat as it was only about a half a mm but out of all them wires an connections i dont think she turned out to bad so today just to right them small probs then motors at months end an then she's on for sept 10th an then fingers crossed i think id better get some in my hand to compare with an old motor to make sure its the right size an it will then meet up with the propshafts as i cant alter the propshafts angle then see what happens
chrisb

 

[Jim R]

You'll get there for sure Chris. You've put so much work, time, study and dare I say money into this. It's an amazing build.

 

[boatman]

You'll get there for sure Chris. You've put so much work, time, study and dare I say money into this. It's an amazing build.

thanks Jim yes i sure hope so as ive had to change so many items up to now an still at it with these motors but i feel fairly confident that all new motors x4 is the answer
cheers have a nice day Jim
chrisb

 

[boatman]

WELL hi again guys well i said i would get some 40amp an 50 amp fuses well this is the size of a 40 amp fuse for tiger

 

[boatman]

AN now look what they have sent me it just gets worst
on the left hand side is the 40 amp fuse i need an today the new fuses came an look at the size of them an the new 40 amp fuse is in orange colour an the new 50 amp fuse is in red but they are way to big oh Gawrd but my fault as i dint notice that it did say LARGE so im goin to see if i can return them for the regular size oh dear

 

[Tim Marlow]

Wow, that’s a bit supersized isn’t it……

 

[stillp]

Porton is two sites…..the Health (HPA and Porton Biopharma) side and the MOD (QinetiQ) side. It was split in the late 1970s. Trouble is, nobody seems to know about our bit, only the MOD part…..even news stories like the Novichok incident talked about the MOD but showed stock pictures of our bit…..

I visited there when I was a sales engineer, in the mid-80s but I can't remember which site, or who I had to see. It was something to do with proximity switches on control valves or flow plates.
Pete

 

[stillp]

HI Pete here it is the ESC on ebay AN my brother found out in a test that no. 4 motor is faultY so hopefully that was the problem pic below OF ESC

Don't tell you much about them do they! Do you use one for each motor Chris, or does one ESC power all the motors?
Pete

 

[boatman]

Wow, that’s a bit supersized isn’t it……

Certainly is Jim but my fault as i dint notice it said large so im hopein to retun them but before i do the 60amp an 70amp ones will be here in a couple of days from the same company so i'll see if i can return them all in one go OH DEAR just not my wk
chrisb

 

[boatman]

Don't tell you much about them do they! Do you use one for each motor Chris, or does one ESC power all the motors?
Pete

HI Pete no it does not say much but how its wired up is one ESC works 2 motors an the other works the back pair of motors an pic below

 

[Tim Marlow]

I visited there when I was a sales engineer, in the mid-80s but I can't remember which site, or who I had to see. It was something to do with proximity switches on control valves or flow plates.
Pete

Probably not us. I started in mid eighties and our kit was still fully manual. Didn’t get that sort of thing for another ten or fifteen years. Could have been the freeze drying area though?

 

[Airborne01]

Me no sparky…..me biotechnology production specialist :tongue-out3:
….colloquially known as Plantlife by the others in my place of work……or as we ourselves called it….plantlife and bloody proud of it :thumb2:

Same thing ...

 

[stillp]

Could have been the freeze drying area though?

I think I'd have remembered that.
Pete

 

[Waspie]

HI Pete no it does not say much but how its wired up is one ESC works 2 motors an the other works the back pair of motors an pic below

Flippen eck Chris. Plain as day to see the problem there.
It's the doogamaflip that connects to the whatsit when its in parallel to the thingamabob.
If you can't see that!!!!! :rolling: :smiling2: :smiling2: :smiling2:


But seriously Chris - I wouldn't even know where to start even wiring one motor never mind four!! Onwards and upwards my friend, she will sail again, no pooping fuses and turn on a sixpence!! :thumb2:

 

[Airborne01]

Flippen eck Chris. Plain as day to see the problem there.
It's the doogamaflip that connects to the whatsit when its in parallel to the thingamabob.
If you can't see that!!!!! :rolling: :smiling2: :smiling2: :smiling2:


But seriously Chris - I wouldn't even know where to start even wiring one motor never mind four!! Onwards and upwards my friend, she will sail again, no pooping fuses and turn on a sixpence!! :thumb2:

The Ooojamaflip has been wrongly connected mate - not the doogamaflip! (Otherwise the Betamax would have a reverse 8-Track parallax inversion!) Simples!

 

[Tim Marlow]

I think I'd have remembered that.
Pete

Possibly not….it’s just a big box with a couple of pump and valve set ups….sort of like an autoclave in reverse…..