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UHF radio control for submarines (openLRS, LoRa, FSK etc. on 458Mhz and 433Mhz )
Piston Ballast Systems
Moebius Skipjack
Engel U177 IX D2
CSS HUNLEY
Revell 1:72 VIIC u-boat
CSS PIONEER
New project - USS Nautilus
Prop shaft seals
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salmon
B737
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    Engel U177 IX D2

    rgj
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    • Post n°101

    Engel U177 IX D2 - Page 5 Empty Second test

    Post  rgj Tue Aug 07, 2012 10:20 pm

    Back to the pond.

    Prop shafts OK now. But WTC seal now not good. Air under pressure is takingthe easy way out.....

    I had a neoprene gasket made but it seems to be too rigid. I have invested £2-99 on ebay for some neoprene tape- hopefully it will be softer & give a better seal.

    I have also bought a couple of lead moulds from a fishing tackle shop to cast some ballast. Yet another skill that hopefully will be gained from this project.

    ATB
    Rob
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    B737
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    • Post n°102

    Engel U177 IX D2 - Page 5 Empty Re: Engel U177 IX D2

    Post  B737 Tue Aug 07, 2012 11:16 pm

    Ok, if the neoprene stuff you bought is not working you can try my type of seal,see my latest picture.(have to find out the english name of it)
    by the way,do i understand that the boat is now "sinking" when you fill the tanks??
    Cheers,
    Martin
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    Peter Webster
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    • Post n°103

    Engel U177 IX D2 - Page 5 Empty Re pressure switch

    Post  Peter Webster Sat Jan 19, 2013 9:35 am

    How did you mount the pressure switch?
    I have been following your great series and have just begun in earnest with my U177 but cannot figure out how to mount the switch.
    I notice Engel have a mounting bracket as an extra which I think I will have to get or do you know of an alternative.
    Thanks and keep up the photos.
    Peter Webster
    from Oz
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    • Post n°104

    Engel U177 IX D2 - Page 5 Empty Re: Engel U177 IX D2

    Post  rgj Sat Jan 19, 2013 10:20 am

    Hi

    Things have been quiet with the sub - a test dive in our pond showed her to be a bit bow heavy - foam has been added. But since then a combination of holidays , xmas & weather & football season starting has precluded another test dive. The completed model is too big to handle myself & I have 3 daughters who will not help...... hopefully I will get her out in february when Stoke are not playing at home when an interested friend will help.

    A silicone rubber spray has proved useful for sealing the WTC lid.

    As to the pressure switch I used the mount supplied & some elastic tube to hold it in place on the mount - seems solid enough.

    ATB
    ROb
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    Tom(ADMIN)
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    Tom(ADMIN)
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    • Post n°105

    Engel U177 IX D2 - Page 5 Empty Re: Engel U177 IX D2

    Post  Tom(ADMIN) Sat Jan 19, 2013 10:41 am

    You could try using a length of O ring material as a gasket to seal the lid, Ramesh uses this very successfully. Hopefully the picture will show the idea.



    Engel U177 IX D2 - Page 5 59371_10
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    B737
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    • Post n°106

    Engel U177 IX D2 - Page 5 Empty u177

    Post  B737 Sat Jan 19, 2013 6:27 pm

    Peter: you can use the device Engel is selling for securing the pressure switch. I made a thin metal strap around the switch and fastened that on the bracket which holds the piston tank.
    Rob: I take it that your boat is finished;can we expect some pictures you promised earlier?
    Kind regards,
    Martin
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    • Post n°107

    Engel U177 IX D2 - Page 5 Empty Re: Engel U177 IX D2

    Post  rgj Sat Jan 19, 2013 7:33 pm

    Hi Martin

    You are right it is finished. I will do my best with some photos when I take it for an outing.

    Life has been hectic so everything bar work & family has had to take a back seat

    ATB
    ROb
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    B737
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    • Post n°108

    Engel U177 IX D2 - Page 5 Empty u177

    Post  B737 Sat Jan 19, 2013 7:40 pm

    Peter, here is a picture that might help.
    Its vieuwing inside to the rear
    MartinEngel U177 IX D2 - Page 5 Img_1311
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