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Author Topic: OceanWorks Jet drives for 1:12 scale Shannon Lifeboats  (Read 18242 times)

The Old Fart

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Re: OceanWorks Jet drives for 1:12 scale Shannon Lifeboats
« Reply #125 on: November 15, 2019, 04:29:15 PM »

They work fine in my SL shannon.


single 4s 16000ma.   

Taranis

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Re: OceanWorks Jet drives for 1:12 scale Shannon Lifeboats
« Reply #126 on: November 15, 2019, 05:12:20 PM »

Chris Scott uses 3000kv inrunners with 7.2Nimh
I would speak to him on Facebook

The Old Fart

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Re: OceanWorks Jet drives for 1:12 scale Shannon Lifeboats
« Reply #127 on: November 15, 2019, 05:17:57 PM »

thanks  will do

Taranis

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Re: OceanWorks Jet drives for 1:12 scale Shannon Lifeboats
« Reply #128 on: November 19, 2019, 06:45:24 PM »

Having just found this in the drawer bottom it has just occurred to me that I don't think I ever posted what the original 28mm jet drives were like before I got into discussion with my Amigo at Ocean Works ?


This was my original purchase which was a shock as nothing like what you might expect from a 28mm drive.
Their willingness to accommodate my requests was truly outstanding and it seems they have sold quite a number  :-))



Here you can see also the change of bucket outlet angle besides the vast increase in size
Actually firing straight back at the transom originally

kinmel

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Re: OceanWorks Jet drives for 1:12 scale Shannon Lifeboats
« Reply #129 on: November 19, 2019, 07:47:08 PM »

Has anyone swapped out the supplied jet drives from a Speedline Shannon for a pair from OceanWorks'  ?

I have a the X9D Plus fully programmed for all the manoeuvres  listed in the Hamilton manual and can alter each control's output  by 0.1% "on the fly", it is not possible to get ideal solutions, or even consistent performance at just above tick over. The throughput randomly varies by about 20%, I suspect the waterseals on the shafts are the problem, but fitting new seals and repeatedly adjusting the gap between the housing and the coupling makes no useful difference.                 
 I have tried different Rx, Esc and motors etc to no avail, the only option left is to swap out the jet drives.   

If I buy a pair of OceanWorks jet drives will the existing couplings fit, or are the new type supplied now?
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Taranis

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Re: OceanWorks Jet drives for 1:12 scale Shannon Lifeboats
« Reply #130 on: November 19, 2019, 07:51:05 PM »

Solid couplings now Alan   Included m4 to m5
The issue with swapping the whole drive is that the water intake is much further forwards and the hull needs to be flat whilst the Speedline is true to reality and recessed right up to the transom.
It can be done with glass work yes

kinmel

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Re: OceanWorks Jet drives for 1:12 scale Shannon Lifeboats
« Reply #131 on: November 19, 2019, 08:10:39 PM »

Thanks Andy
I expected to have to get the fibreglass out, so that's not a problem.
Now Speedline is no-more, someone will eventually have to swap them out and it may well be me.

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The Old Fart

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Re: OceanWorks Jet drives for 1:12 scale Shannon Lifeboats
« Reply #132 on: November 19, 2019, 08:20:51 PM »

I've thought about retro fitting the Ocean drives to my speedline. No seals in speedline drives, replace with propshaft.


Now I have a taranis x9e I may change the speedline over once I've done the MBD, expect in 2021.

Taranis

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Re: OceanWorks Jet drives for 1:12 scale Shannon Lifeboats
« Reply #133 on: November 19, 2019, 08:26:03 PM »

Me too Dave my drives got Hubbled  :-))
Again as you I will finish the MBD before looking again at the other and my hull is not painted fully yet so less hardship
Also would remove all my controls and reinstall like my current build

The Old Fart

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Re: OceanWorks Jet drives for 1:12 scale Shannon Lifeboats
« Reply #134 on: November 20, 2019, 08:37:19 AM »

Fitted an extra switch to the X9E. Fairly easy to setup in radio.


Wonder if we could have a dedicated thread on this transmitter to pass on information, deals, utube?

Taranis

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Re: OceanWorks Jet drives for 1:12 scale Shannon Lifeboats
« Reply #135 on: November 20, 2019, 09:12:33 AM »

Why would it need an extra switch ? Mine has several unused.
Another thread would be better
Over to you  :-))

The Old Fart

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Re: OceanWorks Jet drives for 1:12 scale Shannon Lifeboats
« Reply #136 on: November 20, 2019, 09:21:49 AM »

always find room for extra switches, lights, radar, multi sound system.

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Re: OceanWorks Jet drives for 1:12 scale Shannon Lifeboats
« Reply #137 on: November 24, 2019, 05:38:47 PM »

Hi, I keep viewing this post over and over because I see something else every time . I see that your trims are linked to your motors, I have mine linked to the buckets so when going forward they go down and in reverse they lift up out the way. Itíll be interesting to try both ways to see the outcome. Keep posting it keeps me questioning myself.
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Taranis

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Re: OceanWorks Jet drives for 1:12 scale Shannon Lifeboats
« Reply #138 on: November 24, 2019, 05:43:09 PM »

My trims are linked to buckets and throttle
There are videos demonstrating a few pages back


https://www.modelboatmayhem.co.uk/forum/index.php/topic,63576.msg676146.html#msg676146

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Re: OceanWorks Jet drives for 1:12 scale Shannon Lifeboats
« Reply #139 on: November 24, 2019, 07:23:25 PM »

Iím quite new to using the mix functions, I wasnít aware that more than two functions can be mixed, Iíll have to have a play, thanks. :-))
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The Old Fart

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Re: OceanWorks Jet drives for 1:12 scale Shannon Lifeboats
« Reply #140 on: December 02, 2019, 04:47:32 PM »

My drives arrived today. Excellent quality. Solid coupling. Aluminium face plate for motor fixing. Not sure what the ali fitting is for.
Ordered another set for my speedline shannon. 

Taranis

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Re: OceanWorks Jet drives for 1:12 scale Shannon Lifeboats
« Reply #141 on: December 02, 2019, 05:00:27 PM »

The alloy fitting was originally for through the hull and it accepts a bellows. Perhaps included for the trim tabs?
I didn't use it.

Taranis

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Re: OceanWorks Jet drives for 1:12 scale Shannon Lifeboats
« Reply #142 on: June 02, 2020, 07:21:05 PM »

Upgraded prop tubes with SS general purpose bearings arrived today from HK
I'll be stripping the build next week to retro fit them.
All new orders will have these as standard. Anyone who wants to upgrade contact OceanWorks with your original order number for a fair deal


Taranis

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Re: OceanWorks Jet drives for 1:12 scale Shannon Lifeboats
« Reply #143 on: June 15, 2020, 06:18:47 PM »

So having removed my deck and as much equipment as necessary I'm now ready to swap the tubes.
I have quickly realised that this task is not to be attempted if your deck is already fitted and not removable.
It takes quite a bit of effort to extract the original tubes and when replacing you need to be absolutely sure that the greasing hole aligns with the grease point.
So I'm starting with port side. I originally smeared the mating surfaces on the transom with clear silicone, this was parted with an exacto chisel blade and the residue did not stick to the nylon drive so it just needed thumbing off the GRP to leave clean.



I could have gotten away with not removing the filling point, I thought it might have protruded into the shaft tube but it does not.



I've inserted and aligned the new tube with an application of Araldite after the grease hole. Resin is just to ensure that the tube won't turn out of line in use.
The new tube is slightly shorter for some reason but I'll make up the difference with washers at the impeller end.

The Old Fart

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Re: OceanWorks Jet drives for 1:12 scale Shannon Lifeboats
« Reply #144 on: June 15, 2020, 06:25:25 PM »

How is the end bearing sleeve attached to the prop shaft? Could that just be changed over, for those with solid fixed decks. I did send Victor a message but had no reply yet.

Taranis

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Re: OceanWorks Jet drives for 1:12 scale Shannon Lifeboats
« Reply #145 on: June 15, 2020, 06:35:12 PM »

It's a machine press fit extremely tight, it would not be possible to fit to the old tube and it would make the overall length too great.

Taranis

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Re: OceanWorks Jet drives for 1:12 scale Shannon Lifeboats
« Reply #146 on: June 16, 2020, 10:12:46 AM »

Both done now but I have had to use washers to make up for the new tubes being shorter. I think that is a design error myself.
I could alternatively have shortened the shafts and moved the flats.
As this is the final instal all 8 grub screws are thread locked. My couplings are not by OceanWorks.
They feel really smooth


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