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Model Boats Website
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Petty Officer 1st Class)
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Australia
Recent Posts
💬 Re: Chris Craft Cobra
18 days ago by 🇦🇺 peterd (
Midshipman)
Midshipman)✧ 41 Views · 4 Likes
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Great job . I like the steering wheel, it goes well with the rest of the cockpit fittings.
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📝 Day Dreamer gets a newly painted hull
1 month ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 32 Views · 3 Likes
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The colour scheme works well. Really lifts it. Very popular with the locals as well by the look if it.
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💬 Re: Baby Bootlegger
2 months ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 20 Views · 3 Likes
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Thanks for those comments about the propellor. This is the first time I have had the issue with the only difference being the fact that I moved it forward and replaced the rudder. By doing that I was able to tighten my turns however now have the other issues.
I have not sharpened or tuned the propellor in any way.
I have not sharpened or tuned the propellor in any way.
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💬 Re: Baby Bootlegger
2 months ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 25 Views · 5 Likes
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Hi and please see the video taken this morning. Back to the drawing board but the resolve should be in sight.
The boat speed was reduced substantially however she turned better than in the past. The problem appears to be 'cavitation' which can be plainly seen and heard in the video. When turning hard you can also see her tend to skip a little sideways.
I cannot remember the format for the video so have posted on a YouTube channel - please let me know if this works - it may be a private channel. Original is MP4
The boat speed was reduced substantially however she turned better than in the past. The problem appears to be 'cavitation' which can be plainly seen and heard in the video. When turning hard you can also see her tend to skip a little sideways.
I cannot remember the format for the video so have posted on a YouTube channel - please let me know if this works - it may be a private channel. Original is MP4
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💬 Re: Baby Bootlegger
2 months ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 36 Views · 3 Likes
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Interesting concept Mike. I can see where you are coming from.
I am restoring an rc powerboat I was given that was powered by two 11cc aircraft engines.
I am thinking of putting a jet drive on it. No rudder. A long way to go though.
I am restoring an rc powerboat I was given that was powered by two 11cc aircraft engines.
I am thinking of putting a jet drive on it. No rudder. A long way to go though.
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💬 Re: Baby Bootlegger
2 months ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 39 Views · 3 Likes
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Version 2 (or is it 3) on the rudder. Will see how it goes this weekend and when happy will rebuild the final edition. I may still take more off the top rear.
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💬 Re: Baby Bootlegger
2 months ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 39 Views · 3 Likes
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Cutouts made - in the sun waiting for the paint to dry.
Thank goodness for some sunshine - we have had our share of rain and wind for the moment. Mind you, a bit of constant wind would be good tomorrow.
Will have a carload, my bootlegger, DF65, Emma and a friend with his Racing Sparrow. I think I need a bus.
Thank goodness for some sunshine - we have had our share of rain and wind for the moment. Mind you, a bit of constant wind would be good tomorrow.
Will have a carload, my bootlegger, DF65, Emma and a friend with his Racing Sparrow. I think I need a bus.
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💬 Re: Baby Bootlegger
2 months ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 40 Views · 3 Likes
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Hi Alessandro - I will cut back a little this morning to give more room behind the propellor - not happy with that anyhow and also cut a little off the rear of the rudder as well. Unfortunately, cannot do much with the front. Luckily it is hot and dry so the paint will set.
As mentioned in your email, there is no option to alter the location of the rudder shaft. It is a tiny area and I even now struggle just to locate the rudder arm.
I have seen images on larger Baby Bootleggers where the rear of the rudder is quite rounded. Big day tomorrow. Thanks for your interest.
As mentioned in your email, there is no option to alter the location of the rudder shaft. It is a tiny area and I even now struggle just to locate the rudder arm.
I have seen images on larger Baby Bootleggers where the rear of the rudder is quite rounded. Big day tomorrow. Thanks for your interest.
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💬 Re: Baby Bootlegger
2 months ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 47 Views · 3 Likes
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Terrible photo and a quick build. (Paint is still wet as well.)
Only about 2mm between the rear of the prop and the leading edge of the rudder, however as a trial will see how she goes on Friday, weather permitting.
Only about 2mm between the rear of the prop and the leading edge of the rudder, however as a trial will see how she goes on Friday, weather permitting.
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💬 Re: Baby Bootlegger
2 months ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 56 Views · 4 Likes
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Yes, I thought that would be half the problem. When at speed she turns reasonably well but at the narrower end very sluggish.
I have reduced my drive shaft forward by 3cm - cannot go any further and have just drawn out a new rudder - about to go and cut it. I am taking the foot of the rudder to just over the level of the propellor base however do not have room to use a fully balanced rudder. A matter of a couple of mm. This rudder will be ply so if I make an error simple to replace.
I use a 40mm propellor.
I have reduced my drive shaft forward by 3cm - cannot go any further and have just drawn out a new rudder - about to go and cut it. I am taking the foot of the rudder to just over the level of the propellor base however do not have room to use a fully balanced rudder. A matter of a couple of mm. This rudder will be ply so if I make an error simple to replace.
I use a 40mm propellor.
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💬 Re: Baby Bootlegger
2 months ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 57 Views · 4 Likes
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Hi AlessandroSPQR. I will chase that link however will try and get some video this Friday. In the meantime I am going to build a new rudder and when finished will give that a try. I seem to have less issue when at speed, it is when i have to slow down for a tight area. The video i will be looking for will be in that area of the waterway which leads to a weir.
These boats are built for straight line. Our waterway is pear shaped and my turning point is right at the narrow end.
These boats are built for straight line. Our waterway is pear shaped and my turning point is right at the narrow end.
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💬 Re: Baby Bootlegger
2 months ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 57 Views · 3 Likes
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Thanks for that info on your battery esc setup. I would be getting a similar time on my nimh battery with the brushed battery though have never taken the time to work it out due to sail activities/racing. Prior when using the larger 750 brushed motor it was quite a different story - 10 mins max.
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💬 Re: Baby Bootlegger
2 months ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 69 Views · 3 Likes
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(River Rat) Just watching a video of a mahogony typhoon on you tube. Quite an impressive vessel.
What motor are you using? I am now running with a 550 brushed and a single 7200 nicad. (I originally had two batteries and a 750 motor but not really required.
What motor are you using? I am now running with a 550 brushed and a single 7200 nicad. (I originally had two batteries and a 750 motor but not really required.
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💬 Re: Baby Bootlegger
2 months ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 70 Views · 3 Likes
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Thanks Mike - unfortunately there is no room for twin rudders as the stern is very narrow (quite an effort to simply just mount the rudder arm). I appreciate all comments and am looking very seriously at the other option of rebuilding the rudder.
It is a simple matter to just move or shorten the shaft for the prop which will allow me to move approx 1.25 inches forward. New rudder and that should do the trick. I had also been looking at the assembly on the boat (image attached) whereby the propellor shaft is fitted to the rudder - this is a more direct drive distance to the propellor but similar principal.
It is a simple matter to just move or shorten the shaft for the prop which will allow me to move approx 1.25 inches forward. New rudder and that should do the trick. I had also been looking at the assembly on the boat (image attached) whereby the propellor shaft is fitted to the rudder - this is a more direct drive distance to the propellor but similar principal.
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📝 Baby Bootlegger
2 months ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 79 Views · 13 Likes · 30 Comments
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Since building my Baby Bootlegger a lot has happened. I had to remove my top skin and replace it with a new top planking. The top skin was twisting and bending out of shape - I had been told to use a veneer which was not the correct decision.
Anyhow, all good and have put that to experience.
A quick question, are there any other members who have built a similar boat and what design rudder are they using? I have used a rudder as in the original John-Tom design and found it no good in tight situations. I turn like a truck instead of a speed boat. Luckily I have a great reverse and am double ended.
I guess the main question is, as the boat is almost a pencil shape, does that combined with the rudder affect the turning circle. Photo of my rudder attached.
Your thoughts appreciated.
Anyhow, all good and have put that to experience.
A quick question, are there any other members who have built a similar boat and what design rudder are they using? I have used a rudder as in the original John-Tom design and found it no good in tight situations. I turn like a truck instead of a speed boat. Luckily I have a great reverse and am double ended.
I guess the main question is, as the boat is almost a pencil shape, does that combined with the rudder affect the turning circle. Photo of my rudder attached.
Your thoughts appreciated.
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💬 Re: Racing Sparrow
2 months ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 33 Views · 0 Likes
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Thanks for that. Will check it out.
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💬 Re: Racing Sparrow
2 months ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 33 Views · 0 Likes
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Hi, what is the length of your R🤑acing Sparrow. A friend built 2 boats several years ago, both 75cm. He has high aspect square top sails and the boats perform well.
When I can I will get photos.
When I can I will get photos.
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💬 Re: RAAF Museum Point Cook, Victoria, Australia
4 months ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 65 Views · 0 Likes
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I have not been there but which flying boat - they do have a Catalina on display.
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💬 Re: My Harbour
1 year ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 195 Views · 2 Likes
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Very impressive. Many years work there.
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Ronald
Brightwork
📝 Battery esc combination
1 year ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 53 Views · 0 Likes
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Thanks gents. I will have to check out those stat's in the morning. I had been running with the 4.5 gel battery which with the Esc and motor got the boat on plane very easily. Only issue was that after 15 minutes the battery was basically flat. Both the motor and esc have cooling fans and I have ensured good ventilation throughout.
The original specs for the boat are for a 750 series motor. I tried last weekend using a single 7.2v 5000a battery with a quickrun 60 esc, this of course did not produce enough grunt to get onto a plane.
More research tomorrow.
The original specs for the boat are for a 750 series motor. I tried last weekend using a single 7.2v 5000a battery with a quickrun 60 esc, this of course did not produce enough grunt to get onto a plane.
More research tomorrow.
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📝 Battery esc combination
1 year ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 56 Views · 0 Likes
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I am trying to match battery - Esc combination on my Sea Commander.
I have been running a 12v 750 size motor (around 16,000 rpm) with a 320 ESC and utilizing a 4.5a 12v gel battery.
Looking at utilizing two 7.2vx5000a nimh batteries - in series total of 12 cells. Easier to handle and a better fit. I think a little more run time as well.
3rd
It looks like this may not work due to the increased voltage. Should i stick with the gel battery and maybe upgrade to a larger capacity or should I be safe with the 320. Thanks.
I have been running a 12v 750 size motor (around 16,000 rpm) with a 320 ESC and utilizing a 4.5a 12v gel battery.
Looking at utilizing two 7.2vx5000a nimh batteries - in series total of 12 cells. Easier to handle and a better fit. I think a little more run time as well.
3rd
It looks like this may not work due to the increased voltage. Should i stick with the gel battery and maybe upgrade to a larger capacity or should I be safe with the 320. Thanks.
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📝 Battery Esc combination for Sea Commander
1 year ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 12 Views · 0 Likes
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I am trying to match battery - Esc combination on my Sea Commander.
I have been running a 12v 750 size motor (around 16,000 rpm) with a 320 ESC and utilizing a 4.5a 12v gel battery.
Looking at utilizing two 7.2vx5000a nimh batteries - in series total of 12 cells. Easier to handle and a better fit. I think a little more run time as well.
It looks like this may not work due to the increased voltage. Should i stick with the gel battery and maybe upgrade to a larger capacity or should I be safe with the 320. Thanks.
I have been running a 12v 750 size motor (around 16,000 rpm) with a 320 ESC and utilizing a 4.5a 12v gel battery.
Looking at utilizing two 7.2vx5000a nimh batteries - in series total of 12 cells. Easier to handle and a better fit. I think a little more run time as well.
It looks like this may not work due to the increased voltage. Should i stick with the gel battery and maybe upgrade to a larger capacity or should I be safe with the 320. Thanks.
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📝 PT boats weathering
1 year ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 52 Views · 2 Likes
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www.shapeways.com links in there to a lot of figurines whether navy from different nations or just use the search facility. I simply put in 'sailor'. Over 40 pages of figurines.
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💬 Re: Yet to be named launch
1 year ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 132 Views · 2 Likes
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Looks like she has really nice lines. Looking forward to seeing your progress.
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stevedownunder
Black Shoe
💬 Re: Having fun with the kiddo's
1 year ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 42 Views · 2 Likes
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They did a good job. Good styling.
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hermank
River Rat
📝 St.Pierre Dory build underway
1 year ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 53 Views · 0 Likes
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Looking good and not far away from getting wet. How many projects are you working on now?
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📝 IOM keel
1 year ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 54 Views · 1 Like
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Has anyone had the need to shorten the keel on their IOM?
After 8 months the local council has decided to drain one of our local waterways and clean out the mud.
This particular waterway is fine for WeeNips and other shallow draft boats and owners of DF90 and DF65 yachts are able to shorten their keels without altering the bulb and still sail effectively. Our other normal waterway is weed infested however that should die back with the change of season, hopefully.
I have just finished rebuilding an IOM and cannot sail it at this stage, hence the query. Thanks.
After 8 months the local council has decided to drain one of our local waterways and clean out the mud.
This particular waterway is fine for WeeNips and other shallow draft boats and owners of DF90 and DF65 yachts are able to shorten their keels without altering the bulb and still sail effectively. Our other normal waterway is weed infested however that should die back with the change of season, hopefully.
I have just finished rebuilding an IOM and cannot sail it at this stage, hence the query. Thanks.
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hermank
💬 Re: Russian KC100D waterjet work boat project
1 year ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 94 Views · 4 Likes
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Having been through several cyclones in North and Central Queensland I feel for you guys. Not a pleasant experience and especially with the flooding that ensues afterwards.
Thank you for the images and video.
Thank you for the images and video.
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Colin H
MouldBuilder
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📝 Building Yachts - Servo or Winch For The Sails
1 year ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 43 Views · 3 Likes
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We all use servos on our Wee Nips. Some very creative extension arms. A variety of 10, 15 and even 20k but 15 is the preferred.
My 1m Emma which has a jib and main is also specified with an arm servo rather than a winch, works well.
My 1m Emma which has a jib and main is also specified with an arm servo rather than a winch, works well.
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Colin H
firefighter
Ronald
💬 Re: Battery holder
1 year ago by 🇦🇺 peterd ( Midshipman)
Midshipman)✧ 160 Views · 0 Likes
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That is very neat and well done.
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