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Author Topic: Boston Typhoon FD272  (Read 29915 times)

Tug-Kenny

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Re: Boston Typhoon FD272
« Reply #25 on: May 19, 2009, 10:35:55 AM »

Quote

Believe it or not, my waterline is dead straight and spot on.

Alan. Reference what Richard says above. The illusion would appear to be caused by the curvature of the deck, combined with the angle of the ship at the time of the picture and the position of the camera.

I would sugest widening the black band so that when in the water, all you see is black above the water line. (till she hits a wave!)

Hope this helps

ken


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Alan Duggan

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Re: Boston Typhoon FD272
« Reply #26 on: May 19, 2009, 10:52:52 AM »

Cheers for the image dicky. Optical ollusions can drive a man insane.
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Alan Duggan

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Re: Boston Typhoon FD272
« Reply #27 on: May 19, 2009, 09:18:42 PM »

Well what an evening !

Managed to get her in the water tonight and DISASTER !

First off the prop shaft slipped from the motor so i had to get it tightened back up. Then in she went again.

Ran ok for 10 minutes then she lost all drive. Just a spinning motor. Luckily i was keeping her close to edge so i managed to get hold of her quickly. This time the propeller had worked lose and fell off !

So 2 mishaps but im not finished yet. Went home and replaced the propeller and headed back to the lake. Ran great for 30 minutes then again the prop shaft came off the motor.

So now i have just finished adjusting the motor alignment as i feel the motor was sat to far from the prop shaft and was allowing shaft connector to work loose and come off. So i have now moved the motor towards the shaft to cut down the movement.

Hopefully next time i get her in the water she will survive the trip !
 {-)

Oh and also had a small amount of water in the hell after finishing which i believe was being let in through the shaft. So to solve this i have covered then ends of the shaft in grease.

The builder only sailed her once so i guess im having his teething problems.

Ill let you all know how i get on next time she goes in.  :-))
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nhp651

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Re: Boston Typhoon FD272
« Reply #28 on: May 19, 2009, 10:19:33 PM »

ahhhh, the joys of model boat sailing, alan.
you're not alone by any means.
you can take consolation in that thought.
neil. :} %) %) %) <:(
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bosun

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Re: Boston Typhoon FD272
« Reply #29 on: May 19, 2009, 10:27:29 PM »

Hy Alan
Sorry to hear about your problems, it's all sent to try us mate.
Any chance of some inside working pics, motor set up ect.
I managed to take a pic of my Boston as promised, as you can see there is no white boot line on the water line as I believe it was,nt done those days. However  I have seen quite a few with the white line following the run of the Gunwhale/decking, and that would be running upward toward the bow, giving the illusion that the water line was indeed not straight. Hope this helps
Bosun
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Alan Duggan

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Re: Boston Typhoon FD272
« Reply #30 on: May 19, 2009, 11:06:44 PM »

Thanks for the image bosun. The lines you have there look like i think they should be. Lovely looking model aswell.

Here are some images of the prop and motor coupling ( is that right ? ).

There is a gap of about 2mm from the locking nut to the hull so that allows a little movement. Was alot more before i moved the motor aft a little.


Here is the motor and coupling to the shaft. You can see the coupling sat very close about 2mm from the motor casing. Before i moved the motor it was about 1cm. Also you can see the grease i have applied.




So by closing the gap and cutting down the movement between the coupling joining the motor i hope she will hold. All i can see happening is the coupling nut losing grip. Is there a better way to connect the 2 parts ?
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bosun

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Re: Boston Typhoon FD272
« Reply #31 on: May 20, 2009, 08:02:18 AM »

Hy Alan
I dont think that greasing the shaft as in the picture would do you any good, when the motor runs, centrifugal force will send the grease flying everywhere. Can you remove the motor and withdraw the shaft, then you can grease the tube useing a small syringe, you can also get a grease nipple that you clamp onto the stern tube, you will still have to withdraw the shaft to drill a small hole into the tube, but it is a relatively easy job. If you have a look at Cornwall Model Boats website , or give them a ring you will see that they supply them.
I would leave a small gap between the motor and coupling, in case of binding, but mainly make sure that the locking nuts on either end of the shaft are locked to the prop on the outside, and to the coupling on the inside.
Cheers
Bosun
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Alan Duggan

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Re: Boston Typhoon FD272
« Reply #32 on: May 20, 2009, 08:20:17 AM »

Good Morning Bosun.

Both nuts are locked of as you suggested now.

I will remove the grease and from the outside then remove the shaft and grease up the tube. When i get her back on the water i will let you know the outcome.

Thanks for all pointers. Noobies like me are very greatful.
 :-))

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bosun

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Re: Boston Typhoon FD272
« Reply #33 on: May 20, 2009, 10:09:00 AM »

Hy Alan
Your Welcome, Keep in touch with your progress
Bosun :-))
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Alan Duggan

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Re: Boston Typhoon FD272
« Reply #34 on: May 20, 2009, 09:21:31 PM »

Got her out again tonight but the coupling ended up coming loose again so the motor was just spinning free.

Whats the best way to secure the coupling ?

Some people say file a small flat face on the motor arm others say drill a hole through the coupling and motor arm and pin it.

What do you guys think ?

Cheers Alan

 :}

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Stavros

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Re: Boston Typhoon FD272
« Reply #35 on: May 20, 2009, 10:42:49 PM »

File a flat on the motor thats what I do and dont get any probs.BUT are you sure it is the right size for the shaft of the motor ie not to big,it needs to be a snug fit to the shaft otherwise you get problems



Stav
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Alan Duggan

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Re: Boston Typhoon FD272
« Reply #36 on: May 20, 2009, 11:03:48 PM »

Evening Stavros. Its a snug fit yes, i will try the file and if that fails ill have to try something else.

Cheers Alan
 :-))

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DickyD

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Re: Boston Typhoon FD272
« Reply #37 on: May 21, 2009, 09:09:21 AM »

Hi Alan,as Stavros says, file a flat face on the motor spindle and the prop shaft and that should solve your problem.
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Alan Duggan

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Re: Boston Typhoon FD272
« Reply #38 on: May 21, 2009, 10:54:20 AM »

Will do, i will let you know how i get on.

I got a video of her in the water yesterday. Ill get it uploaded asap.
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Alan Duggan

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Re: Boston Typhoon FD272
« Reply #39 on: May 21, 2009, 06:45:07 PM »

Here is is a link to the video from yesterday. I apologise about the camera being all over in parts but my Father is not the best camera man in the world  {-)

http://www.youtube.com/watch?v=dhw9ceZZ7ek
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DickyD

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Re: Boston Typhoon FD272
« Reply #40 on: May 21, 2009, 06:54:25 PM »

Very nice Alan though it does look as though it could do with a bit of rear end ballast to bring it nearer the waterline.

This will probably help if you sail in breezy weather,it will stop it heeling over to far.
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bosun

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Re: Boston Typhoon FD272
« Reply #41 on: May 21, 2009, 07:09:26 PM »

Hy Alan
Looking good mate, Dicky is right about the ballast, add a bit to the rear end. They do tend to keel over a bit on the turn, so keep the speed as close to scale, not to fast. It's lovely to hear all the family on the video, thats what it's all about, and dont forget to lower the black paint a bit nearer the waterline.
Nice one
Bosun
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Alan Duggan

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Re: Boston Typhoon FD272
« Reply #42 on: May 21, 2009, 07:17:18 PM »

Yeh i have some lead ready to slot in next time im down the lake. I will get the painting done as soon as i pluck up the courage. Hehe

My daughter was the skipper that day :)
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Alan Duggan

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Re: Boston Typhoon FD272
« Reply #43 on: May 22, 2009, 08:02:20 PM »

Evening all.

Ok i managed to file the motor arm down so i had a flat to stop the slipping. Also i added 2 small pieces of lead to the stern. I got her in the water again tonight and she ran great, NO BREAK DOWNS !!!

I took her all the way round the lake, if you know fleetwood lake you will know shes fairly big. Also ran her into the wind at variouse speeds to test the fixes i have applied and se held up great.

I managed to take a few snaps of her in the water aswell. Well 10 photos. Here we go.

I hope you dont mind the updates. If im bugging you all with this please tell me.  <*<





















I still think more ballast is needed in the stern. Thanks everyone for the help you have given me.

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DickyD

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Re: Boston Typhoon FD272
« Reply #44 on: May 22, 2009, 08:15:51 PM »

Not bugged at all Alan, glad she's fixed and sails OK.

Looks really good on the water. :-))
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Alan Duggan

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Re: Boston Typhoon FD272
« Reply #45 on: May 22, 2009, 08:19:48 PM »

Cheers Dicky
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bosun

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Re: Boston Typhoon FD272
« Reply #46 on: May 22, 2009, 09:23:21 PM »

Proper Job, Alan
Bosun
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Alan Duggan

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Re: Boston Typhoon FD272
« Reply #47 on: May 22, 2009, 09:49:29 PM »

cheers
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derekwarner

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Re: Boston Typhoon FD272
« Reply #48 on: May 23, 2009, 12:45:00 AM »

Great model Alan.........& also great that the family are interested & involved :-))......I think your dad derserves a camera tripod for his birthday.......... O0 ....Derek
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ronkh

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Re: Boston Typhoon FD272
« Reply #49 on: May 23, 2009, 08:50:30 AM »

Alan,

Great thread and a lovely model. :-))
I doubt you were bugging anyone. Certainly not me.

Ron.
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