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Bobby Police Launch

Elencato da ianed57 ·

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This was a free plan in Model Boats in 1977 and was based on Vic Smeed's Sparkler (I think). Actually turns out to be Twinkler- see below!
I have built three of these over the years- I like them! This one was built from a laser cut kit supplied by RBC in Holland. It went together well but has only seen the water once- enough to tell me that the toothed belt drive wasn't man enough for the 540 motor, so I will have to shoehorn a direct coupling in there.

Commenti

  1. Madwelshman
    Tenente comandante
    Brianupyonder, if you are on Facebook, there is a model boat plans group and I'm sure the plans for Bobby are on there for free download. If not message me with an email address and I can get the file to you.

    Will
    Piaciuto da Martin555
  2. Juan27
    Mozzo di bordo
    I built the 14" one as a fire boat with working monitor, and now have a half size (10") hull complete. I don't think the radio would have fitted in that in 1977. Plans for it include a tiny brushless motor and lipo battery. I reckon a 33% might be possible with something like an N20 motor and small lipo, not sure if it would plane though. Maybe I need to get out more.
    Piaciuto da Martin555
  3. ianed57
    Sottotenente
    I don't think you can even think about a scale with a boat like this, it's a bit of fun. The figures in mine are about 1:24 but yes, that makes it a pretty large launch!
    Your little one sounds interesting.
    Piaciuto da Martin555
  4. Juan27
    Mozzo di bordo
    What "scale" do we think the original size Bobby represents? If the front cabin door is even supposed to represent 5 feet then its a big old launch for the Thames.....I guess in reality Bobby is more of a cut off MTB or RAF rescue maybe?

    My latest attempt is now complete, but I have started a 14" from reduced plan version. It is tiny now I have the deck and chine cut from 3/16"!
    Piaciuto da Martin555
  5. ianed57
    Sottotenente
    You are right, the 600 would be a very tight fit. I ordered a 385 and rubber coupling yesterday to give that a go - although goodness knows when!
    Piaciuto da Martin555
  6. Juan27
    Mozzo di bordo
    The one I built around the turn of the century had a Speed 400 I think and 6v power. It planed really nicely with that. 2020 version has a 540 and 7.2v, but I have a 380 size motor in reserve in case its too much. I can't see how a 600 motor can fit without chopping the first bulkhead unless there's a much shorter coupling available.
    Piaciuto da Martin555
  7. ianed57
    Sottotenente
    Hi roycv,
    My first Bobby had a 540 and six cells, went very well and was stable. RCB recommend a 600 which might be a bit much. This one has a 500 of some description but I haven't got it going well yet- and won't for a while now. I have to revert to direct drive after failing with a belt drive so I might go for a 380 as space is a bit tight.
    Ian
    Piaciuto da Martin555
  8. ianed57
    Sottotenente
    Hi Juan27
    My third Bobby, this one, is built from the RBC kit. It went together nicely as has yours by the look of it. I do have the article somewhere. I know I've got the magazine as that's a picture of it. I'll look it out and let you know. I expect I could copy the pages and let you have them.
    Ian
    Piaciuto da Juan27 and Martin555

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