Bow Bumper - Fibreglass

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Bow Bumper - Fibreglass

ben_tucka
Joined: 27 Oct 2016, 12:43

25 Nov 2016, 09:20 #1

Hi all

Just wondering why the book states to fibre glass then add the bow bumper? I'm thinking of adding teh bow bumper then fibre glass over the whole lot, any thoughts?

Thanks in advance
Ben.
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racingSparrow
Site Admin
Joined: 06 Sep 2012, 03:27

25 Nov 2016, 21:42 #2

The bow bumper is supposed to be soft for when you race and collide with other boats. If you glass over it that will defeat the purpose of the rubber nose.
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ben_tucka
Joined: 27 Oct 2016, 12:43

28 Nov 2016, 09:14 #3

ahh okay that does explain why you wouldnt fibreglass over it. thankyou

I still might fibre glass over the whole lot seen as I wont be racing any other boats and can see that if I fibreglass over the nose i could get a real sharp point at the front to cut through the water.
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racingSparrow
Site Admin
Joined: 06 Sep 2012, 03:27

28 Nov 2016, 09:21 #4

that's what I do too as I don't race, and it probably is faster, plus easier to build.
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ben_tucka
Joined: 27 Oct 2016, 12:43

28 Nov 2016, 09:45 #5

Thank you very much think I will go with the full fibre glass job and see how that goes. if i damage anything it gives me a great reason to make more :) although a RG65 is next on the build list.

Thanks
Ben.
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m-o-t-
Joined: 27 May 2014, 05:58

28 Nov 2016, 23:28 #6

Who need other boats to mash the bow in with....
I sail solo just me and a few makers I use but these are made from concrete..old piles for a netted pool 006.jpg I just get a bit close sometimes :cry: 236.jpg Make the repair much simpler with just the wood glued and shaped quick coat of spray paint and back out again...I think the post are safe from me.. ;)
Maker Of Things
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ben_tucka
Joined: 27 Oct 2016, 12:43

29 Nov 2016, 10:22 #7

:o ouch.

kinda too late now, the bow glued on and ready for fibreglass (when I get a nice rain free day here in the UK)

So I must stay away from concrete posts then :) think I plan on making my markers from old milk bottles and some left over fishing weights for there base. and will remove these everytime I go out with a contraption I intend to make on a RC powered boat I own.

Ben.
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m-o-t-
Joined: 27 May 2014, 05:58

01 Dec 2016, 05:20 #8

"I go out with a contraption I intend to make on a RC powered boat I own."

I was going to make one myself,it would be interesting to see yours being build. you should start a new thread on it..
Maker Of Things
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ben_tucka
Joined: 27 Oct 2016, 12:43

01 Dec 2016, 10:36 #9

well I best complete the racing sparrow first :) but yeah when I manage to get round to it I will share :) Ive sketched a Design in my Head.
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sarnian
Joined: 06 Sep 2012, 08:19

14 Dec 2016, 17:13 #10

I have just completed a model yacht (not a sparrow) and as it is a deep keel vintage style with wood planked deck I did not want to spoil the effect by having a soft bow, but I don't want to risk damaging the bow in a collision which in my experience is almost guaranteed to happen at some time.
What I have done is to make a detachable bow bumper that is held in place while sailing with hat elastic with a hook that goes around the jib swivel attachment on the deck.
With a bit of careful shaping it fits snugly over the top of the bow, well clear of the water so it does not affect the way it sails, and it does not look out of place. It has already proved its worth twice, once on the maiden trip before I got it trimmed properly and it hit a stone wall head on.
The material I used for this and the bow bumper on my IOM yacht is the sole of a cheap flip flop (total cost £1), easy to cut and shape and can be stuck with superglue to build up thicker sections. This pair came with black soles which looks good.
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