|||
Current Website Support
87
Contributors
29
Subscribers
You are Not Registered
Subscribe for your gold medal ๐Ÿ…
Less Ads
Ad Free
Until Cancelled
ยฃ1
ยฃ2
ยฃ3
ยฃ5
Donate for your silver medal ๐Ÿ…
Less Ads
Ad Free
12 Months
ยฃ10
ยฃ15
ยฃ25
ยฃ50
You Will Be Helping Towards:

  • Domain Fees
  • Security Certificates
  • iOS & Android App Fees
  • Website Hosting
  • Fast Servers
  • Data Backups
  • Upkeep & Maintenance
  • Administration Costs

    Without your support the website wouldn't be what it is today.

    Please consider donating towards these fees to help keep us afloat.

    Read more

    All donations are securely managed through PayPal. Amounts donated are not published online.

    Many thanks for your kind support
  • Join Us On Social Media!
    Download The App!

    Login to Remove Ads
    Model Boats Website
    Model Boats Website
    Home
    Forum
    Build Blogs
    Media Gallery
    Boat Clubs & Lakes
    Events
    Boat Harbour
    How-To Articles
    Plans & Docs
    Useful Links
    6

















    Followers
    Astronaut Diva Prop
    by Rock ๐Ÿ‡ฌ๐Ÿ‡ง ( Able Seaman)
    ๐Ÿ“ฃ










    Click To
    Follow
    2 Posts 8 Comments 0 Photos 1 Like
    Most recent posts shown first   (Show Oldest First) (Print Booklet)
    ๐Ÿ“ Rubber coupling fitted
    8 months ago by Rock ( Able Seaman)
    Flag
    I have now changed the original coupling to a rubber one, and added a strong support the prophecy and it runs much better now. Think I will play with some adjustment to the motor mount and it should be fine then
    ๐Ÿ‘ Like
    ๐Ÿ’ฌ Comment
    ๐Ÿ‘€ 20 Views
    ๐Ÿ“ Astronaut Diva Prop
    8 months ago by Rock ( Able Seaman)
    Flag
    During lockdown i built my first boat, a nice little wooden model called Diva. I've noticed at part throttle the prop tube vibrates inside the hull. Must be because I have a slight miss alignment between motor and prop. I'm wondering if the standard spring type coupling is not helping so have ordered a rubber coupling to see if things improve. If not, has anyone got any ideas? I'd prefer not to have to do anything too major like drill the prop tube out.
    ๐Ÿ‘ Like
    ๐Ÿ’ฌ Comments
    ๐Ÿ‘€ 79 Views
    1
    8
    ๐Ÿ’ฌ Re: Astronaut Diva Prop
    8 months ago by Rock ( Able Seaman)
    Flag
    Thanks for the suggestion, I've installed a cheap rubber coupler and it runs much better than the originsl, but I think I might try the hyco one next
    ๐Ÿ‘ Like
    ๐Ÿ’ฌ Comment
    ๐Ÿ‘€ 30 Views
    ๐Ÿ’ฌ Re: Astronaut Diva Prop
    8 months ago by chrislarge1910 ( Able Seaman)
    Flag
    They run very smoothly better than the rubber ones
    ๐Ÿ‘ Like
    ๐Ÿ’ฌ Comment
    ๐Ÿ‘€ 46 Views
    1
    ๐Ÿ’ฌ Re: Astronaut Diva Prop
    8 months ago by BOATSHED ( Sub-Lieutenant)
    Flag
    View All
    You could try out one of these prop shaft fittings. If you are slightly miss aligined you could sometimes get away with these. It's a Hyco fitting, they are on ebay and quite cheap.
    ๐Ÿ‘ Like
    ๐Ÿ’ฌ Comment
    ๐Ÿ‘€ 59 Views
    2
    ๐Ÿ’ฌ Re: Astronaut Diva Prop
    8 months ago by Rock ( Able Seaman)
    Flag
    I will check that and see if it helps, thanks for the comment.
    ๐Ÿ‘ Like
    ๐Ÿ’ฌ Comment
    ๐Ÿ‘€ 55 Views
    ๐Ÿ’ฌ Re: Astronaut Diva Prop
    8 months ago by Rock ( Able Seaman)
    Flag
    Thanks for the helpful comments, I will post an update when I've done some more tests and solved the problem.
    ๐Ÿ‘ Like
    ๐Ÿ’ฌ Comment
    ๐Ÿ‘€ 55 Views
    ๐Ÿ’ฌ Re: Astronaut Diva Prop
    8 months ago by dave976 ( Lieutenant)
    Flag
    Misaligned or bent prop shaft and lack of support for the prop tube.
    I suggest you take the motor and joiner out and check that the prop shaft is running true. If it isn't then you will need to correct. As you are running a high speed brushless the whole drive train need to be absolutely in line or you run the risk of major damage due to the forces involved.
    Hopefully the shaft will be running true so you can then attach the joiner to the prop shaft and check that is also running true. Then check that the joiner is running true when attached to the motor.
    Assuming all is OK the problem is with the motor mount. You will have to enlarge the mounting holes on the former to allow you to adjust the motor and may need to add some shims between the former and motor to align correctly. Might take you some time but will make your model so much better.
    The rubber coupling will be beneficial and should help reduce engine noise. It will not however cure any misalignment problem.
    Support of the propshaft near to the coupling will also help.
    Looks to be a nice model and well built.๐Ÿ‘ Hope you manage to cure the vibration.
    Dave976
    ๐Ÿ‘ Like
    ๐Ÿ’ฌ Comment
    ๐Ÿ‘€ 78 Views
    ๐Ÿ’ฌ Re: Astronaut Diva Prop
    8 months ago by canabus ( Midshipman)
    Flag
    View All
    Hello
    Miss alignment sounds like the problem.
    You may have to change the motor mount and make up a new one.

    I replaced the whole drive line with a 4mm one and a 28mm brushless motor.
    Canabus
    ๐Ÿ‘ Like
    ๐Ÿ’ฌ Comment
    ๐Ÿ‘€ 72 Views
    ๐Ÿ’ฌ Re: Astronaut Diva Prop
    8 months ago by AustinG ( Master Seaman)
    Flag
    as a guess do you have enough grease in the tube for the propshaft
    to spin without binding?
    ๐Ÿ‘ Like
    ๐Ÿ’ฌ Comment
    ๐Ÿ‘€ 79 Views


    About This Website
    Terms of Service
    Privacy Policy
    Cookies used in this website are gluten free, wheat free and dairy free. By using this website you agree to our use of cookies. More Info