HI Ian well here is a pic of them cam belt drives in norfolk as it about 3 to 1 ratio an the motors in there are gruapner 6oo speed motors an these are what ive always used in my ships but cant buy them now same as cambelt drive made by MFA 
-
-
AN TOTAL all up wheght is as nr as i can get it is 88 1/2 pounds so bloomin heavy an props r 33 mm pic belowComment
-
So 88 1/2 pound is not that much. (40kg) not that much. I was expecting 188Lbs the way you was talking. lol.
So a cam belt drive is a gearbox with a belt. right.
As over £40 a pop for a drive unit. it would be cheaper and easier to put a slower motor in.
You should be able to buy those motors still. You can get them over here anyway.
If they are the right ones that is. £20 a pop.... but then you still have a fast motor. I am sure you could find them in the UK.
Try here: https://www.motorsandrotors.co/index...oducts_id=6259
I would go for something like these.
They cost about 35 quid, but you wouldn't need the reduction box.... They can turn a 130mm screw! and they are the recommended motor for R/C tug boats.
I would say that they would push Tiger more than quick enough.
If I may say I think the props are a bit small at just over an inch. I was expecting them to be at least 2inch. Is that the radius you have given or the diametre?
It looks like there is not a lot of room for much bigger props though.
I hope that you find some of this useful. Perhaps a talk with the chap in the Modelsport link could help clear things up.
Say hi to Jen.Comment
-
I really feel for you Chris. The Tiger is really biting back. I hope all the setbacks at this late stage don't dampen your spirits. You will have a break through soon! :tongue-out3:Comment
-
At £240 for 4 bit pricey but they are the only reduced drive motors I can find at the moment!!!
MFA TORPEDO 850 WITH BELT DRIVE UNIT
No idea if they are too powerful or will fit. I'll keep on browsing!!!!Comment
-
Reading a couple of model boating forums, many of them are saying a three bladed propellor should be adequate but are referring to 385's, (Motors??) and 30mm props. I'm starting feel just a tad of how you must be feeling Chris - It's a minefield. I don't envy you.
I don't think I'll moan too much about PE in the future!!!Comment
-
HI Ian cheers for this info an yes these graupner 600 motors are the ones i want as they are the ones i have always used so firstly hopefully if dry tomorrow i will fit just the hull an batts in the test tank an ask jen to open the throttle while i hold the hull an see how much propulshion she has with these motors in but if not no good then i will try an send for two of these grupner 600 motors from model sport cheers for finding them an take the two out of my norfolk an replace them with the unused motors as got to keep costs down if possible as this is the only way i can think of as these old grupners motors i had in were faulty thats why fuses blew so i'll see what happens tomorrow in test tank CHEERS FOR YOUR HELP SIRSo 88 1/2 pound is not that much. (40kg) not that much. I was expecting 188Lbs the way you was talking. lol.
So a cam belt drive is a gearbox with a belt. right.
As over £40 a pop for a drive unit. it would be cheaper and easier to put a slower motor in.
You should be able to buy those motors still. You can get them over here anyway.
If they are the right ones that is. £20 a pop.... but then you still have a fast motor. I am sure you could find them in the UK.
Try here: https://www.motorsandrotors.co/index...oducts_id=6259
I would go for something like these.
They cost about 35 quid, but you wouldn't need the reduction box.... They can turn a 130mm screw! and they are the recommended motor for R/C tug boats.
I would say that they would push Tiger more than quick enough.
If I may say I think the props are a bit small at just over an inch. I was expecting them to be at least 2inch. Is that the radius you have given or the diametre?
It looks like there is not a lot of room for much bigger props though.
I hope that you find some of this useful. Perhaps a talk with the chap in the Modelsport link could help clear things up.
Say hi to Jen.
chrisb an jen an jen says hi to you alsoComment
-
HI Jim i really hope so but its a job to know what motors an props i need on this ship as she is very heavy in my opinion but ive spent to much dosh an time to give up now an i think them groupner 600 motors an the cam belt drive are the ones i need as ive always used these an never had any probs before so thats where my confidence lies
ATB
ChrisbComment
-
-
AN Doug THESE one are way to big as ive seen these at a model show an i dont think they do any smaller ones as the motors shaft is to big but cheers for lookin
chrisb
YES Doug now you see my probs as yes it is a minefeild as there are so many motors props an such to know which i will need for my probs but as i said the grupner 600 motors fitted in cambelt drive should do it as they powered my big nimitz carrier but firstly will try out them motors in test tank tomorrow if nice day
cheers for havin a look for me much appreciatited
chrisbComment
-
SO do i Ian as this problem is wearin me down but when you think about it she only had one sail like jen said an tomorrow will be the only second time in the water so dont get disalioushioned now so im tryin very much so an what info you put up Ian will be be very usefull if i have to go for them groupners motors
an also cheers for you lookin for me sir much appreciated
ATB
chrisb an jenComment
-
HI ALL well yesterday was fine rain here so no tiger test in tank but just noticed that the Norwich pond has a charity summer garla open day tomorrow so i will take tiger so she can be treid in the proper condisions on the pond so see how she goes an now im armed with 30 amp an 40 amp an 50amp an 60 amp an 70amp fuses so see what happens tomorrow an yes will take plenty of pics
chrisbComment
-
Fingers and everything else crossed for you Chris!
Here's to a successful day. :thumb2:
RonComment
Comment