|Jul 16, 2013, 02:09 AM|
BUOY DESIGNS for R/C Yacht Racing
We all sail around/between marker buoys and my local club need new ones for coming season.
I've looked online and there is no info on R/C YACHT Racing buoy designs. I ask the question "what design are your buoys?".
I just thought that to Radio Control Yacht Class sailors, buoys are important/hated/loved and yet no one seems to have published any info on the best sizes, materials, colours, flags, chains, etc.
The aim is to make functional buoys that we don't get hung up on too easily, don't damage hulls or keels, yet are visible, show touches and wind direction, are easy to deploy and transport, don't drift etc.
Feedback would be great and I'm sure others would be interested in design ideas and criteria from Clubs who like their buoys.
Thank you in advance.
|Jul 16, 2013, 02:50 AM|
Racing Flags and Marks Kit
|Jul 16, 2013, 03:43 AM|
|Jul 16, 2013, 06:02 AM|
Safety Boat brilliance
Thanks but you need to log into the French Micro Magic forum, so that link has limited functionality. Photos can be viewed though without login and corflute sail box is nice light idea (Chrome has a translator that works well). Go to page http://galerie.micro-magic.fr/ on that site, under "Construction" photo collection - nice cases.
However, thank you for the published photos and video - that retrieval, safety, buoy laying, power boat is brilliant and works sooooo well on MMs but may be less functional when wind is up trying to capture an out of control boat.
Concept could be used by many clubs where a full sized boat is not practical or allowed. Great job and thanks for the input.
|Jul 16, 2013, 07:19 AM|
I am actually looking for a source for these... They are made by BEMA in Germany I think.
They used to be available in 16-18" sizes that were perfect for big regattas but I our source does not stock them here in the US and I am unable to find another source on line. There was a location in Canada that stocked these sizes but no longer. I do not know if they stopped making them or these sources don't care to stock them.
Any help would be appreciated...
|Jul 16, 2013, 08:03 AM|
Inflatable buoys are a great solution for transport and showing touches if you put vertical pieces of contrasting tape or signage vinyl on their sides! Only problem is no flag to show windage can be easily attached. Also would need chain for first 40cm at least to decrease keel hookups on anchor lines.
So you USA guys have a source that might fulfill some needs.
|Jul 16, 2013, 10:43 AM|
These marks were designed and made by Graham Herbert of our local group.
They are light and spin easily if hit (very visible to all)
The base is wide enough that a heeled IOM cannot snag the centre post/ground tackle.
There are two versions. The are made from insulation foam sheets, cut and glued..
The pictured one is a permanent mark. It has a tube through the middle/washers and bolts top and bottom, and attach by line to a weight.
The other version is the portable one. It has a reel of line through the middle tube. The weight is dropped and when the line is the desired length, the reel of line is jam-pushed into the top of the tube to lock in place.
|Jul 16, 2013, 01:50 PM|
The "great" classes (IOM and M) usually sail on largest ponds, lakes, or even sea, where there is no restriction on the the use of full size boats.
|Jul 16, 2013, 04:29 PM|
We have a design from our club member John (TBarJohn on here)that works
very well and I think has many advantages.
First off these marks can be thrown in or set with a elec. boat, the round weight
goes up inside the plastic tube and easily slides down the line to anchor the
buoy in place -we use these for multiple fleets and in high winds and they hold
very good. we sail on a deep lake, and these weights can be down 20 feet or
more-thats another advantage, depth doesn't matter, they self set.
Another tip for buoys makers-use a dacron line-you WANT the line to absorb
some water so it sinks and won't get fouled on keels, either at the mark
location or with the line running out to the marks.
These marks are from 3" pool noodles,the plastic is fron sink drains.the line
came from (I think) Florida-a shop that supplies offshore fishing gear.
If anyone wants to use round inflatable buoys, try a online supplier of water
skiing equipment-we also have a set of them-they are slolom course buoys.
Like the picture in an above post,we set the buoys on a boat,drive itout where
we want the mark and pull the buoy off the stern, then give the line slack until
the weight goes down to the bottom.
hope this helps
|Jul 16, 2013, 06:43 PM|
Joined Jan 2011
5 Gal drinking water bottles,the type found upside down in dispensers.Paint it and insert a PVC pipe in the neck using a heat gun.Attach anchor and ballast to pipe and add water until it floats correctly.They last long
|Jul 16, 2013, 08:52 PM|
How about if you want a flag and rigid tube below water, you could make polypipe to tightly fit into hole through these FitPaws for Dog doughnuts
|Jul 17, 2013, 04:41 AM|
I use a piece of 2 inch chain about 3 feet long clamp it to the handle then slide a 2foot PVC tube over then tie anchor rope to that the weight of the chain keeps the angle of the anchor rope going straight down you can paint lines or numbers on them they will inflate from 12 to 20 inches they do not scratch your boat like styro foam if you hit them tony/g
|Jul 17, 2013, 05:44 AM|
Germany, BW, Stuttgart
Joined Mar 2012
for MM racing on a small local pond I have made some marks and modified a small boat for the work to place them (nearly) where I want them. After racing they were pulled in by hand (last update via a batterie drill):
The marks, some are made from fishing marks the two yellow ones self made out of swimming tubes for children:
The boat (in the first version - today it has got a better, bigger V-section plattform for better fixation of the marks)
Even some difficulties to place the marks in fresh winds (mainly due to the relative slim elektric boat of only about 50 cm lenght) it works well for now three years at least for small racing boats and small courses.
|Jul 17, 2013, 06:05 PM|
wow Thomas, nice as always!!
The marks I made last were as follows.
15cm round Styrofoam ball with the hole in the middle (go see tim at Paynesville and get a boat mooring float!) , top and base of hole I use a disc of plywood drilled with a holesaw (like a big plate washer) .
place top disc on top of ball, feed VB cord (that's venetian bilnd cord in Australian, (3mm cheap poly cordage)) through the ball , through the next disc and tie a knot.
then tie a knot in the side that the spool of cord is on to secure the discs.
next fix a keyring to a lead sinker, one of those torpeodo shape ones works well, about 6-700grams. then feed rope through keyring.
so to launch the mark, the weight slides up next to the ball and hold the cord next to this.
make sure you have coils of cord off the reel ready to unwind (we also used hand fishing line reels).
stand on the bank or jetty and throw the ball and weight as far as you can/like.
sinker slides down the cord to sit in the mud and the ball pops up and stays in position.
if you have boats snag the cord as it comes back to you , a second weight can be used to anchor it down.
may need to experiment with weights of sinkers to suit your marks.
can also use soft drink bottles as marks.
hand launching the marks has the big advantage for small boats that people cannot set a stupidly massive and far away race course!
little boats, sailed where you can see them on tight course work really well.
My theory is have short courses and lots of races, that way even the slow boats have the chance of winning the start and even a race, if they don't at least theres less chance they will be lapped, so they stay happy and will come back sailing again, otherwise our sport dies!
hope this helps!
p.s. was great sailing at Nicholson river, good location!
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