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Author Topic: brushless jet drive lifeboat  (Read 7489 times)

debssnal

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brushless jet drive lifeboat
« on: August 15, 2008, 10:38:16 PM »

Hi eveyone this boat is 1:10scale 54"long weighing in at 15kg .It has 2x 720 watt brussless they run cold and at 96% efficient.
On 12volt it does 30meters in5 sec.
On 24volt it just mad ,but good fun
I run it on gel cell batterys
I have had to put a 13kg pull sail servo in to get it to turn
running on 12volt  http://uk.youtube.com/watch?v=gLRKH9_MKfI
running on 24volt  http://uk.youtube.com/watch?v=Qa5wBkClicI
running on 24volt  http://uk.youtube.com/watch?v=Jn2QxbhaJUs
I am doing a lot of playing around with brushless so i will let you all know what i find out.
Alan
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colin-stevens

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Re: brushless jet drive lifeboat
« Reply #1 on: August 16, 2008, 10:53:46 PM »

Wwow. more details, pretty please. like what jet drive is yer using?
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grumpy old XXX

debssnal

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Re: brushless jet drive lifeboat
« Reply #2 on: August 17, 2008, 07:38:55 PM »

Hi Colin,well the jet drives are 2x Graupner Jet Drive 2340.
The motors are 2x Tornado Thumper 4250 Brushless motor - 720 watt motor, 600 kv.
The ESC are 2x MYSTERY 100Amp Speed Controller.
The batterys are on 12volt 1x12volt 12ahp,or on 24volt 2x12volt 7ahp.
The boat is 54" long and weight is15kg
On 12volt it does 30 meters in 5sec
On 24volt its just mad,but lots of fun
It can run up to 1 1/2 hours on 12volt
On24volt about 20mins going like a loon lol
Hope this is some help to you Colin
kind regards
Alan
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colin-stevens

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Re: brushless jet drive lifeboat
« Reply #3 on: August 18, 2008, 07:18:55 PM »

enlighten me, i thought that brushless ESC were voltage sensative, ie 12v= an ESC for a 12v. not covering the range you are on.
did you make the hull yourself? if so what did you use for plans?
realy does look impressive at 12v, let alone 24V.
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debssnal

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Re: brushless jet drive lifeboat
« Reply #4 on: August 18, 2008, 09:58:26 PM »

Hi colin,
The esc has a voltage range of 7.4volts to 25.7 volt,and best of all they cost £6.99 +£8.99 postage each 5days to get to me.
The motors come from a model shop in maidstone £29.99 each,and each motor has the more  power than 4x MFA 850.They less than1/2 the weigth and size.So motors and ESC for less than a brushed set up.
A good friend made the hull and top,and it is made from grp and its 1:10scale.
It has taken some time to get it running well and to get a good run time on the water.
I am now making the all the fittings for the boat and geting ready for painting.
kind regards
Alan

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colin-stevens

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Re: brushless jet drive lifeboat
« Reply #5 on: August 19, 2008, 07:45:20 PM »

thanks for that, have to mark this somehow .
keep us up to date on progress pleaseeeee.
colin
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debssnal

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Re: brushless jet drive lifeboat
« Reply #6 on: August 19, 2008, 07:52:46 PM »

Hi Colin,no props will keep you up dated
kind regards
Alan
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johno 52-11

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Re: brushless jet drive lifeboat
« Reply #7 on: August 21, 2008, 12:43:00 AM »

Great looking model with a fantastic performance itís just a shame the real thing never made it as a real Lifeboat http://www.rnli.org.uk/who_we_are/press_centre/news_releases/news_release_detail?articleid=322374

Still itís a unique piece of RNLI history that should cause a lot of interest if you take it to any shows when itís finished.
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debssnal

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Re: brushless jet drive lifeboat
« Reply #8 on: August 21, 2008, 05:56:28 PM »

Hi john the fcb2  is still on the go they have been put some bit on the hull and are testing.the boat is also used by the uk police and the army.so no dead in the water yet.as a model its good fun.
kind regards
Alan
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debssnal

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Re: brushless jet drive lifeboat
« Reply #9 on: August 27, 2008, 09:32:36 PM »

Hi every one you can now get the boat in 1:16scale.
Makes it 33"long and runs super on the mini jets
kind regards
ALAN
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TugCowboy

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Re: brushless jet drive lifeboat
« Reply #10 on: August 28, 2008, 09:38:10 AM »

Really impressive videos! it has such a smooth presence on the water!
Alex
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debssnal

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Re: brushless jet drive lifeboat
« Reply #11 on: August 28, 2008, 09:40:00 PM »

Thank you Alex
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Charlie

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Re: brushless jet drive lifeboat
« Reply #12 on: August 31, 2008, 02:29:02 PM »

Hi Alan - where from?

Charlie

Hi every one you can now get the boat in 1:16scale.
Makes it 33"long and runs super on the mini jets
kind regards
ALAN

TugCowboy

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Re: brushless jet drive lifeboat
« Reply #13 on: August 31, 2008, 09:03:17 PM »

Yes, please tell us where from!
Also, is the 1:10 scale you are using available?

Alex
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debssnal

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Re: brushless jet drive lifeboat
« Reply #14 on: August 31, 2008, 10:55:18 PM »

Hi Charlie and Alex,you can get it from Andy at http://www.modelsbydesign.co.uk/
hope this is some help to you two.
kind regards
Alan
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TugCowboy

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Re: brushless jet drive lifeboat
« Reply #15 on: August 31, 2008, 11:02:28 PM »

Hi Charlie and Alex,you can get it from Andy at http://www.modelsbydesign.co.uk/

Why did I not know about this site before?!  >>:-( >>:-( What a brilliant selection of hulls/plans/kits!

What is the time from order to delivery like? There's certainly a couple on there that will be ordered when the wallet is a little fuller!

Alex
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debssnal

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Re: brushless jet drive lifeboat
« Reply #16 on: August 31, 2008, 11:22:18 PM »

Hi Alex i would say around a week.I ordered 4 hulls from Andy at a show i went to picked them up 2 week later,and he had to make the hulls and tops as he did not have them in stock.
i would say thats good going,they are made to a very,very high standard.
the finish on the fishing boat was like a top class paint job did not have paint as it came in the colour i asked for.
kind regards
Alan
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Charlie

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Re: brushless jet drive lifeboat
« Reply #17 on: September 01, 2008, 01:52:24 PM »

Thanks Alan, i have placed my order O0

Charlie

Hi Charlie and Alex,you can get it from Andy at http://www.modelsbydesign.co.uk/
hope this is some help to you two.
kind regards
Alan

debssnal

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Re: brushless jet drive lifeboat
« Reply #18 on: September 03, 2008, 11:11:13 PM »

Hi Charlie well done in ordering your boat.I will see you at the SOUTHERN MODEL AIRSHOW i am there Satuarday and Sunday.
kind regards
Alan  O0  O0
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debssnal

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Re: brushless jet drive lifeboat
« Reply #19 on: October 01, 2008, 06:49:08 PM »

Hi everyone
        the boat now comes in 1:16 scale.it will be on the water at Beale park this weekend 4th and 5th oct.
here is a link http://uk.youtube.com/watch?v=-_CkwoFhwJk
i will be taking the big one as well http://uk.youtube.com/watch?v=Jn2QxbhaJUs
see you there
kind regards
Alan
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debssnal

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Re: brushless jet drive lifeboat
« Reply #20 on: May 11, 2009, 05:42:38 PM »

Hi Everyone,I have got a new top on its way ,and i will be running it at Wicksteed in just under 2 week.
Looking forward to meeting fellow brushless nutters.This time i am got to fix the top on with locking pins.
Hope to see you all soon
kind regards
Alan
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phillnjack

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Re: brushless jet drive lifeboat
« Reply #21 on: January 23, 2011, 06:48:35 PM »

WOW what great performance. :-)) and its a pretty big boat  for electric as well

i have a jet unit lying around, and i am now seriously thinking about putting it in a patrol/rescue boat with a planning hull.

Now my hull is 39 inch long by 12 inch wide. ive tried a electric motor and its rubbish.
I need more speed and a decent amount of running time.

after seeing this boat perform like this has made me want to go this way too.

Just wondering if 1 jet will be enough for my boat though.

if i could get similar performance than the above 12 volt i would be a real happy chappie

rescue craft using jets has to be the best way to go.

here is a video my boat running 12 volt with a decaperm and a x50 prop, very poor performance >:-o




And Here is the JET UNIT




phill.....
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