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










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    52 Posts 51 Replies 35 Photos 85 Likes
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    roycv
    Petty Officer 2nd Class
    ๐Ÿ“ Graupner Elke HF 408
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    Country: ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
    Online: 12 hours ago
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    Hello Tica I see I have not replied to your kind upload of the building instructions. I apologise for my lateness. I managed to print off everything I needed and the printouts are held safely in the kit box.

    It is nice to find help when you need it so thanks again.

    Best regards

    Roy
    1
    roycv
    Petty Officer 2nd Class
    ๐Ÿ“ Graupner Elke HF 408
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    Country: ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
    Online: 12 hours ago
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    Hi, I have been reading the beginning of this thread, albeit now 3 years back but most interesting on the motor choice discussion.

    My Elke kit which is still as dispatched from Graupner, and during its life it has gained a 280 motor. I mostly have low powered model boats and these days many of the esc's have an overload cut out. So at the bottom end as I am re current consumption I have not fittted a fuse or ever had a burnt out motor.

    My son and I many years back now used to run Bobby's with a 540 and a P40 prop which gave them a healthy turn of speed. Any weed encountered was just chewed up! The only near stalls were caused by picking up fishing line.

    In my Elke I am planning on using a prop shop 25mm 3 blade one and either a monoperm or super monoperm with a very cheap esc.

    However there are many motors available, choice is not easy, and I do have a liking for using re-cycled commercial motors. As an example I have a twin powered HDML using 2 ex-computer tape deck motors (Pitman now 50+ years old now). The boat goes faster than scale speed and there 2 off 9 cell Nicad packs (they were going cheap) and full speed is just 3/4 of an amp (750mA) per motor.

    So I very much agree that a good match of prop to motor can make all the difference to time and performance on the water. I also like to be able to turn the prop and feel the (brushed) motor 'cogging'.

    Regards

    Roy
    Martin555
    Fleet Admiral
    ๐Ÿ“ Graupner Elke HF 408
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    Country: ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
    Online: 14 days ago
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    Hi Doug,
    The Hull is looking great.
    Do you have anymore updates on this vessel ?

    Martin555.
    If it looks right it probably is.
    roycv
    Petty Officer 2nd Class
    ๐Ÿ“ Graupner Elke HF 408
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    Country: ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
    Online: 12 hours ago
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    Hi re props you are right about the 2 blade props. I have not looked in that much detail at my Elke kit.
    I was basing it on my 2 Billing Mary Ann fishing boats and they come with very small 2 bladed props.
    Which I have changed to what must seem more sensible 3 bladed props.

    I have a spare Monoperm Super for the Elke build and I have been using the very small esc's that cost < ยฃ5 and use the plugs and sockets more often seen on RC receivers.

    They are excellent in performance and have the smallest switch I have ever seen to control simulated braking for cars or when off a nice clean and quick reverse. I guess a safe current would be < 4 amps? I have been using them for several years now.

    Regards

    Roy
    1
    jbkiwi
    Admiral
    ๐Ÿ“ Graupner Elke HF 408
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    Country: ๐Ÿ‡ณ๐Ÿ‡ฟ New Zealand
    Online: 9 hours ago
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    Looking a lot better now Doug, when is the expected re-launch, or is your good lady distracting you from your work๐Ÿ˜‰๐Ÿ˜‚?

    JB
    1
    RNinMunich
    Fleet Admiral
    ๐Ÿ“ Graupner Elke HF 408
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    Country: ๐Ÿ‡ฉ๐Ÿ‡ช Germany
    Online: 2 hours ago
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    Thanks JB,
    That cutter is indeed very similar to my Billing Gina, which BTW is a Danish boat not German.
    Although the Graupner boat seems to be rigged as a crab cutter rather than a 'fish' cutter.
    Attached pics show the 'wreck' that I inherited, and finally the current hull state.
    Cheers, Doug ๐Ÿ˜Ž
    2
    Young at heart ๐Ÿ˜‰ Slightly older in other places.;-/ Cheers Doug
    jbkiwi
    Admiral
    ๐Ÿ“ Graupner Elke HF 408
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    Country: ๐Ÿ‡ณ๐Ÿ‡ฟ New Zealand
    Online: 9 hours ago
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    This might help Allen, just dragged out my 204 page Graupner catalogue from the late 70s an found the Elke info. Also for Doug, a pic of the Graupner Ton 12 fish cutter for comparison to your Billings. If anyone needs any info on old Graupner kits or fittings (planes or boats) from the catalogue let me know (PM if you want) Just for interests sake, a pic of the Graupner factory in its' heyday in the 70s as well.

    JB
    2
    RNinMunich
    Fleet Admiral
    ๐Ÿ“ Graupner Elke HF 408
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    Country: ๐Ÿ‡ฉ๐Ÿ‡ช Germany
    Online: 2 hours ago
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    Hi Allen,
    Long time no hear!๐Ÿค”
    The saga of your boot sale find restoration started, and came to an abrupt halt๐Ÿ˜ฎ, 3 years ago.
    Did you ever get her running to your satisfaction?
    If so any pics or vids of her in action available?
    Would be very interested to see how she turned out.
    Especially as she's very similar to an ancient Billing fish cutter that I inherited from an Aunt around that time and am (slowly๐Ÿ™„) restoring and converting from static to RC.
    Cheers, Doug ๐Ÿ˜Ž
    2
    Young at heart ๐Ÿ˜‰ Slightly older in other places.;-/ Cheers Doug
    RNinMunich
    Fleet Admiral
    ๐Ÿ“ Graupner Elke HF 408
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    Country: ๐Ÿ‡ฉ๐Ÿ‡ช Germany
    Online: 2 hours ago
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    Hi Roy,
    Please correct me if I'm barking up the wrong tree, but aren't the P and X type plastic props two bladers, primarily for racers?
    I believe that this model, a 'plodder' needs a 4 blade water-shover of finer pitch๐Ÿ˜‰
    My choice would be a Raboesch type 147-xx 25 or 30mm prop, see page 3 of the attached catalogue.
    Driven by a 280 or 285 brushed motor on 6V.
    Cheers, Doug ๐Ÿ˜Ž
    2
    Young at heart ๐Ÿ˜‰ Slightly older in other places.;-/ Cheers Doug
    roycv
    Petty Officer 2nd Class
    ๐Ÿ“ Graupner Elke HF 408
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    Country: ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom
    Online: 12 hours ago
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    Hi all I note that some time ago the pitch of propellers was being discussed. If you are using the P and X type plastic or reinforced ones then the P type is 1.4 times the prop diameter for the pitch. The X type is 1.7 (I think) times the prop diameter.

    Regards

    Roy
    2
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