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*STOP PRESS* Coronavirus. A lot of Clubs have already cancelled all activities. Check carefully before you plan any travel

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CANCELLED because of coronavirus. Papplewick Pumping Station, Nottingham, Sunday 12th & Monday 13th April
CANCELLED because of coronavirus. Bournville Sub Day, Sunday 10th May 2020

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Submarine, Boating & Sailing Weekend, Norwich MBC, Weekend of 25,26th July

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Model Boat Convention, Haydock Park (Cancelled this year)

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Bournville Sub Day, Sunday 13th September

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Club Submarine Regatta, Furness MBC, Barrow in Furness, Sunday 20th Sept 2020

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    Another cheap and simple Charlie Class

    John Wrennall
    John Wrennall
    AMS member

    Posts : 157
    Join date : 2011-11-16
    Age : 74
    Location : Leyland

    Another cheap and simple Charlie Class Empty Another cheap and simple Charlie Class

    Post  John Wrennall on Sun Oct 04, 2015 9:32 pm

    Hi All

    After having to reposition all my boats and ending up with an aching back, I decided the next one would by small, light and a dynamic diver to reduce maintenance. What follows are the photos taken during the build and I hope that the old adage "a picture is worth 1000 words" holds good. They are not shown in any particular order but are just to show some specific feature of the build.

    Rudders/planes cut from 3mm sheet plastic.
    Another cheap and simple Charlie Class Img_0610

    Fitted with shaft and Glued together.
    Another cheap and simple Charlie Class Img_0617

    Rudder linkage(hydroplanes similar) - note magnetic coupling.
    Another cheap and simple Charlie Class Img_0710

    Rear hull cone with all holes drilled.
    Another cheap and simple Charlie Class Img_0810

    Control pivot bearings and supports to be glued in.
    Another cheap and simple Charlie Class Img_0616

    Inside rear cone with controls fitted.
    Another cheap and simple Charlie Class Img_0618

    rear of rear cone has a short piece of tubing fitted to support the propshaft which SLIDES through
    Another cheap and simple Charlie Class Img_0614

    Main Hull 65mm OD, 320mm long.
    Another cheap and simple Charlie Class Img_0811

    Hollow free-flooding sail, made from several layers of 3mm plastic.
    Another cheap and simple Charlie Class Img_0812

    Interior of front cone. Note screw to adjust angle of hydroplanes.
    Another cheap and simple Charlie Class Img_0813

    Rear bulkhead during construction. Propshaft and oiler glued in.
    Radial tapped holes to retain rear cone, Axial tapped holes for securing through-bolts
    2 large axial holes for pushrods.
    Another cheap and simple Charlie Class Img_0611

    Inboard side of rear bulkhead showing motor coupling.
    Another cheap and simple Charlie Class Img_0612

    Motor on its own bulkhead. Slides on nicely during assembly.
    Another cheap and simple Charlie Class Img_0613

    Later photo of rear bulkhead. Note use of 8mm plumbing fitting to carry the bellows and
    magnet on end on control rods.
    Another cheap and simple Charlie Class Img_0816

    And the inside view again.
    Another cheap and simple Charlie Class Img_0817

    Miscellaneous bits - hull seals, spacer tubes and front plate for securing front bulkhead.
    Another cheap and simple Charlie Class Img_0814

    Tech rack. 2 servos at rear, receiver at front,battery in centre, esc above battery.
    Another cheap and simple Charlie Class Img_0815

    Photo during assembly.
    Another cheap and simple Charlie Class Img_0819

    Fully assembled.
    Another cheap and simple Charlie Class Img_0932

    The model has yet to have its final checkover and be ballasted.

    More photos to come if all goes well.

    If anyone has any queries on the build, just ask.

    Cheers
    John
    david f
    david f
    AMS Treasurer

    Posts : 2104
    Join date : 2010-11-10
    Age : 69
    Location : Cumbria

    Another cheap and simple Charlie Class Empty Re: Another cheap and simple Charlie Class

    Post  david f on Sat Oct 17, 2015 12:42 pm

    Nice to see another sub in the Keep It Simple category!

    When I think back on this season's sailing - your Graupner  Shark was always there and always sailing.

    Nothing like this available now commercially, I think?

    David


    Last edited by david f on Mon Oct 19, 2015 10:52 am; edited 1 time in total
    John Wrennall
    John Wrennall
    AMS member

    Posts : 157
    Join date : 2011-11-16
    Age : 74
    Location : Leyland

    Another cheap and simple Charlie Class Empty Re: Another cheap and simple Charlie Class

    Post  John Wrennall on Sat Oct 17, 2015 3:57 pm


    Nothing commercial like it that I know off.

    It was easy and straight forward to build, the only fiddly bit being the cross-over control links for rudder and hydroplanes inside the rear cone.

    Down to the pond with it tomorrow if the weather is fit

    John

      Current date/time is Fri Jul 10, 2020 7:40 am