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    Graupner Elke HF 408
    by AllenA ๐Ÿ‡ฌ๐Ÿ‡ง ( Chief Petty Officer 1st Class)
    ๐Ÿ“ฃ










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    80 Posts 79 Replies 36 Photos 101 Likes
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    fulmic
    Able Seaman
    ๐Ÿ“ Graupner Elke HF 408
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    Country: ๐Ÿ‡ฎ๐Ÿ‡น Italy
    Online: 1 day ago
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    Based on your clarification i decided to keep the Lead Battery 6Volt for the motor. also because i need the load to keep the boat balance. Thanks Ron and Tica.
    1
    fulmic
    Able Seaman
    ๐Ÿ“ Graupner Elke HF 408
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    Country: ๐Ÿ‡ฎ๐Ÿ‡น Italy
    Online: 1 day ago
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    Roy thanks concept clear.
    roycv
    Warrant Officer
    ๐Ÿ“ Graupner Elke HF 408
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    Country: ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
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    Hi the mixture as specified (coutesy Deans Marine) can be ignored once in place. Just a little thin oil on the outer part of the bearings including the motor.

    I personally have phased out SLA's as they need charging every month regardless of use or they deteriorate. NiMh batteries you can just leave them until you require them again.
    regards
    Roy
    1
    Ron
    Rear Admiral
    ๐Ÿ“ Graupner Elke HF 408
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    Country: ๐Ÿ‡จ๐Ÿ‡ฆ Canada
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    I agree totally with Tica.

    This is a sailing yacht, which would use the engine for moving about while in harbour but most time it would be under sail. When under power of the motor, it would not be very fast, so keep your model accordingly.

    I do not put motors in my sailboats. If you do, you are looking at speed control, bigger battery pack, plus, the motor, stuffing box and so forth.

    Will you be sailing your model with sailโ€™s furled and vessel under power? Or, are you planning to sail it under way with full sails ?
    2
    Tica
    Chief Petty Officer 2nd Class
    ๐Ÿ“ Graupner Elke HF 408
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    Country: ๐Ÿ‡ฉ๐Ÿ‡ฐ Denmark
    Online: 16 hours ago
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    Elke is a classic vintage kit and I would stay with a 6V Lead cell as suggested in the instructions.

    LiPO's is a great invention when one need the power but Elke will not benefit of that.
    1
    fulmic
    Able Seaman
    ๐Ÿ“ Graupner Elke HF 408
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    Country: ๐Ÿ‡ฎ๐Ÿ‡น Italy
    Online: 1 day ago
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    Carsten sorry
    come to my mind a new possible solution. Can i use for my motor Graupner 280 Speed not the regular 6V battery but a Lipo 7,2Volts? Because maybe is better the Lipo. To compensate the different in weight i can add inside some pieces of lead. What do you think? Or is better to stay with 6Volts Lead battery?
    fulmic
    Able Seaman
    ๐Ÿ“ Graupner Elke HF 408
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    Country: ๐Ÿ‡ฎ๐Ÿ‡น Italy
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    Roycv, Thanks for informations, i will follow the shaft grease solution, first i will clean the tube that keep the shaft in order to remove the old grease inside. Later on can i use to refeel the grease/oil the shaft support that has an hole with silicon pipe dedicated to lubricate the shafts? after each run? Thanks Fulvio
    roycv
    Warrant Officer
    ๐Ÿ“ Graupner Elke HF 408
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    Country: ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
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    Hi if my memory serves the brushes on these motors are simple metal ones. I would think they would act as a fuse on their own with that current flowing. I would not worry too much when using these small motors as they are little work horses.
    As has been suggested a small prop but do make sure there is not too much drag from the grease in the prop tube.

    I use a mixture of 1 part vaseline, 1 part 3 in 1 oil and 1 part WD40 spray. Mix it up together and suck it into the tube. Then cover the end of the tube as you push in the prop shaft. It has virtually no friction and keeps the water out.

    regards
    Roy
    1
    fulmic
    Able Seaman
    ๐Ÿ“ Graupner Elke HF 408
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    Country: ๐Ÿ‡ฎ๐Ÿ‡น Italy
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    Doug good morning
    Thanks for your considerations, now have got the information that i need. Thanks also for the attachment that i will keep for future. I will back to you if i will have other topics. Thanks and Ciao
    RNinMunich
    Fleet Admiral
    ๐Ÿ“ Graupner Elke HF 408
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    Country: ๐Ÿ‡ฉ๐Ÿ‡ช Germany
    Online: 2 days ago
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    Absolutely Carsten๐Ÿ‘๐Ÿ‘

    Hi Fulvio,
    According to my archive (see attached pdf) the stall current of a 6V Speed 280 is 6.8 Amps.
    Normal operating current is around 1.8A.
    So I would fit a 5Amp fuse.
    Happy boating,
    Buona sera, Doug ๐Ÿ˜Ž
    1
    Young at heart ๐Ÿ˜‰ Slightly older in other places.๐Ÿ˜Š Cheers Doug
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