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Author Topic: DECAPERM  (Read 15333 times)

ajb68

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Re: DECAPERM
« Reply #25 on: August 30, 2009, 01:43:28 PM »

i run  robbe navys 540 geared 5:1 on  12volt  turning a  4inch prop 6mm shaft  ''no problems'' in my tug   with the cost of decaperms you could but 2 navys & still have change left O0  (you could take the other 'half out for lunch on the change :-)) :D

as it happens i to am building a 33inch  gm33    (can you guess the motor thats in it ;)) a 70mm prop for this one!!!

regards ray

Have you got any pictures of your latest build Ray ?
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nemesis

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Re: DECAPERM
« Reply #26 on: September 05, 2009, 05:37:09 PM »

Decaperms are a very SOFT motor, with being made of plastic, which is why you should only run them geared. If you overload them for a short time the plastic softens, the pins start to cut through the endcap & then Kaput. £££££££££££down the drain. When I was at work I used to reclaim
them by making new endcaps But when I worked out the cost it was cheaper to buy another motor.
Haviing said all that, they used them in the 100 watt class, ungeared, but only running for a very short time. Stick with the advice of the others,
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ray123

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Re: DECAPERM
« Reply #27 on: September 05, 2009, 07:49:01 PM »

hi andy  sorry  i havernt taken any of this one  ''in stages'' yet  but  all the running gear is in prop shaft rudder etc  the deck is all in  the frames/ ribs are in as well  nexted up is the teak gunwhale's   :-))  regards ray
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ajb68

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Re: DECAPERM
« Reply #28 on: September 05, 2009, 07:53:31 PM »

did you get the full kit Ray ? ive gone for the sf 33 with a stern wheelhouse , should be here next week  :-)
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PeterS

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Re: DECAPERM
« Reply #29 on: October 04, 2009, 03:10:25 PM »

Hi guys

Can only agree to some contributions above: Deca was a "Mercedes"  --- 25 years ago.
And is an old overpriced grandfather...

For myself, long time I prefered van motors from the junkyard.
(Nowadays it's not easy to get a cheap one there...)

In meantime i'm using industrial Buehler motors. Some shootings at ebay, and some bought here:
  http://www.hobby-lobby-modellbau.com/onlineshop/product_info.php/info/p2893_B-hler-BB-Power-f-r-Gro-modelle--12-Volt.html/XTCsid/0b9b671ebfee2024dd501a9a6ed612bb

If you have enough mounting space and ballast of ~700gr : First choice!
No gear, no noise, 12pole-collector, 3300rpm. @12V  (IMHO: 35W netto, 50W max)
Starts softly at ~3V/250 mA.

I'm using them in 2 ships, each with 2x 24V-types. and 70mm/75mm Raboesch props.
Each about ~65" and ~32 kg.
No heating, no problems. Current (combined, both motors) : Full throttle ~3A, if ship is fixed: ~4A


I think, this motor could easily drive your 3"4 blade. And 3300rpm is much enough  for such a monster-blade ;-)

Pete
 







 
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rayna

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Re: DECAPERM
« Reply #30 on: October 26, 2009, 07:59:43 AM »

 
Would appreciate it if you motor gurus looked at my enquiry in the warships forum titled "RAF Range safety Launch" drive queries.
thanks
Ray
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snowwolflair

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Re: DECAPERM
« Reply #31 on: October 26, 2009, 12:20:22 PM »

Quote
If you overload them for a short time the plastic softens, the pins start to cut through the endcap

When you overload anything it will fail.  Why were you trying to run a motor in a way that it was not designd to be used :o

Used correctly the Marx Luder motors are still some of the best motors arround.  I have models 30 years old with them and they still run extremely well as they did when new.
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rayna

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Re: DECAPERM
« Reply #32 on: October 26, 2009, 08:44:27 PM »

 :-))
Thanks . for the information.
Ray
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mike k

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Re: DECAPERM
« Reply #33 on: January 22, 2010, 10:31:49 PM »

hi, i have a maggie m kit to build, and i would like to over power it as im going to try and tow a trawl with it. whats the most powerfull motor i can run  in her, i was thinking of not using the kort  and going for the largest five blader prop i can swing, cheers mike.
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ray123

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Re: DECAPERM
« Reply #34 on: January 23, 2010, 09:35:56 PM »

hi mike k   i had a maggie m that had a working trawl winch   the motor i had in was a small 12 volt 'bosch'car heater fan driving a 50mm  4blade prop  this was plenty of power for her!!  the trouble is mike if you get snaged on the bottom with you trawl  &give it to much power  she will roll over   mine allmosed did!   i would fit a 540 geared 2;1 or 3;1  & keep the nozzel on   you dont need a speed boat to go trawling!!  i have another boat that trawls this has a 540 geared 3;1 on 6volt  'it works fine'  regards ray
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mike k

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Re: DECAPERM
« Reply #35 on: January 24, 2010, 12:15:45 AM »

hi ray, i have got a como drill 6 to 1 geared motor that came with the kit that should do then, best get my waders sorted for when i have a go up and down the beach. the cygnus looks good towing there, thanks mike.
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ray123

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Re: DECAPERM
« Reply #36 on: January 24, 2010, 09:48:38 PM »

hi mike    that would be a better set up for the  maggie   so where are you going trawling??  regards ray
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Klunk

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Re: DECAPERM
« Reply #37 on: January 25, 2010, 09:54:12 AM »

Or one of my 900 motors will power it no problems....... :-)) :-)) :-))
http://www.modelboatmayhem.co.uk/forum/index.php?topic=19292.0

Mark.

hey mark do you only sell 900's??
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Marks Model Bits

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Re: DECAPERM
« Reply #38 on: January 25, 2010, 10:57:19 AM »

I also sell  755 motors  and 555 motors
 
   MMB 755 5 POLE MOTOR
 
6-12 VOLTS 
 
NO LOAD SPEED 4400RPM ON 12 VOLTS
 
NO LOAD CURRENT 0.3 AMPS
 
LENGTH 87mm
 
DIAMETER 42mm
 
SHAFT DIAMETER 5mm             



look under   www. marksmodelbits.com


Mark.
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Klunk

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Re: DECAPERM
« Reply #39 on: January 25, 2010, 02:27:43 PM »

cheers mate had just found the website when this acme thru\!!
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nemesis

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Re: DECAPERM
« Reply #40 on: January 25, 2010, 02:51:12 PM »

Hi, Keep your Kort as you get more thrust at slow speed which is why inshore trawlers use them.
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mike k

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Re: DECAPERM
« Reply #41 on: January 25, 2010, 11:07:07 PM »

thanks i will stick with the kort then, i would like to try a spot of rock hopping in mullion harbour but she wont be ready for my holiday. i will have to stick to goodrington beach in torbay and make sure i have my waders with me. 
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