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Tammo
Joined: 09 Jan 2007
Posts: 675
Location: Netherlands
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 Posted: Sat Aug 11, 2007 4:04 pm Post subject: New project, new pics! |
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Ok, i had a view boats that did'nt want to do the things the way i wanted them too do. Well one did run but i had a RC failure and it ended up, full throttle, hadding my way on to shore. I can tell ya a boat at full throttle hitting your leg will hurt. But i was stronger. The boat is dead.
So back to the drawingboard. So to say.
Here's what i am up to now. I hope i got all the flaws out now.
This is the first design sketch.
And here's where i am in the built:
I am now working on a enginemount. I want to have the engine hanging sideways, like in the picture:
Keep you updated 
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Pieter
Last edited by Tammo on Mon Aug 13, 2007 4:00 pm; edited 1 time in total |
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saleens7
Joined: 09 Jan 2007
Posts: 772
Location: pembroke pines, FL
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| Posted: Sat Aug 11, 2007 4:18 pm Post subject: |
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looks cool.....cant wait to see more progress....and vids
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semi-retired RC'er |
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Rowboat
Joined: 10 Jan 2007
Posts: 1144
Location: Sydney Australia
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| Posted: Sat Aug 11, 2007 6:48 pm Post subject: |
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Looking good . It looks like you used a cad system to do the designe work. What inspired this build?
BTW how did your three pointer turn out. Im hoping to do a water test my three pointer next month.
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IF YOU AIN'T FLIPPING YOU AIN'T PUSHING HARD!!! |
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Chris
Joined: 31 Dec 1969
Posts: 1298
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| Posted: Sat Aug 11, 2007 8:17 pm Post subject: |
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As always.....NICE WORK!!
We'll be looking forward to seeing how this one turns out. It looks GREAT!!
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We are saved by Grace....but kept by obedience. |
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tommy
Joined: 20 Jan 2007
Posts: 166
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| Posted: Sat Aug 11, 2007 9:22 pm Post subject: |
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Dont tell me the previous 3-pointer crashed.  |
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Tammo
Joined: 09 Jan 2007
Posts: 675
Location: Netherlands
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| Posted: Sun Aug 12, 2007 3:51 am Post subject: |
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Thanks guys 
| Quote: | Rowboat Posted: Sun Aug 12, 2007 12:48 am Post subject:
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Looking good . It looks like you used a cad system to do the designe work. What inspired this build?
BTW how did your three pointer turn out. Im hoping to do a water test my three pointer next month.
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Well UUUhhhhh  The other 3-pointer is scrapped. There where to many things i did'nt like. It was taking on water, BIG TIME.
Designflaw  .
I hope, i think, your version of the boat will do much better. Can't wait to see it.
The inspiration for this boat  Well it came from boats like this one:
| Quote: | Chris Posted: Sun Aug 12, 2007 2:17 am Post subject:
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As always.....NICE WORK!!
We'll be looking forward to seeing how this one turns out. It looks GREAT!!
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Thanks Chris, I realy, REALY, hope this boat will perform good. 
| Quote: | tommy Posted: Sun Aug 12, 2007 3:22 am Post subject:
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Dont tell me the previous 3-pointer crashed.
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Yes, Tommy, i crashed it. I need to be more carefull i think.
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Pieter |
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Andy
Joined: 08 Jan 2007
Posts: 1112
Location: Lexington, NC
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| Posted: Sun Aug 12, 2007 6:57 am Post subject: |
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Everything you touch needs to be in a museum. Give me an idea on the steering. I see what looks to be a air rudder but you do mostly water rudders.
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Tammo
Joined: 09 Jan 2007
Posts: 675
Location: Netherlands
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| Posted: Sun Aug 12, 2007 7:26 am Post subject: |
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| Quote: | Andy Posted: Sun Aug 12, 2007 12:57 pm Post subject:
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Everything you touch needs to be in a museum. Give me an idea on the steering. I see what looks to be a air rudder but you do mostly water rudders.
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Thank you for the big compliment, Andy.
The rudder is there to keep the boat in a straight line while running fast. Thats the idea. It does not move left or right.
And offcourse thats the place to put on the logo . It will get a waterrudder.
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Pieter |
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Tammo
Joined: 09 Jan 2007
Posts: 675
Location: Netherlands
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| Posted: Mon Aug 13, 2007 4:16 pm Post subject: |
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Ok, done the enginemount today.
Here's the result:
The engine is at an angle of 7 degrees upwards.
Here you can see the adjustment of the CoG, by shifting the whole enginemount forward and backward.
Full forward:
Full backwards:
As you can see i try to keep the CoG as low as possible. This enginemount can only handle a 10 inch porp. A bigger one will hit the structure. But if i want a bigger engine and prop, i will make a bigger enginemount. For now i will try this set-up.
Till next update
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Pieter |
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tommy
Joined: 20 Jan 2007
Posts: 166
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| Posted: Mon Aug 13, 2007 6:16 pm Post subject: |
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| Tamo let me ask you something, through many tests and adjastments have you actualy figured out where would be the ideal position for the motor on this type of boat |
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crispyspa
Joined: 10 Jan 2007
Posts: 2156
Location: Onalaska, Wi. USA
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| Posted: Tue Aug 14, 2007 1:09 am Post subject: |
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Very nice Tammo, very nice. I can't wait to see the vids of this.
Tommy, I don't think there is an "ideal" position for the engine in any boat. many factors come into play: position of the radio box, batteries, and servos all play a role in the CB of the craft....hence the reason for the adjustable engine mount. A 1/4" of movement (of the engine) might mean the difference between a speed demon and a water-plow. 
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The gene pool could use a little chlorine. |
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Rowboat
Joined: 10 Jan 2007
Posts: 1144
Location: Sydney Australia
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| Posted: Tue Aug 14, 2007 2:16 am Post subject: |
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Tammo said: | Quote: | | But if i want a bigger engine and prop, i will make a bigger enginemount. For now i will try this set-up. |
Just to add to to that line of thought . If the boat hull doesn't work, just remove the enginemount and bolt it to another boat hull. 
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gasman
Joined: 14 Jan 2007
Posts: 580
Location: gold coast,australia
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Rowboat
Joined: 10 Jan 2007
Posts: 1144
Location: Sydney Australia
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| Posted: Tue Aug 14, 2007 4:22 am Post subject: |
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I think that Tammo is building a Transformer airboat . I can see it now as soon as the boat hits dry land it will transform into a large robot and start running and start shooting at things.
Can't wait for vids M8.
You are always thinking Tammo, once again good work M8
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Francisco
Joined: 10 Jan 2007
Posts: 815
Location: Lisbon, Portugal
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| Posted: Tue Aug 14, 2007 5:24 am Post subject: |
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You've been watching to many movies
The boat is indeed a multi-changer, as it comes near the shore it turns into Devastator as the tank tracks help with traction, then into Bumblebee when it gets into tarmac and then into Starscream when the wind blows nicely and flips it over. Only then will it turn into a mean robot and shoot all the other airboats into oblivion |
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Tammo
Joined: 09 Jan 2007
Posts: 675
Location: Netherlands
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| Posted: Wed Aug 15, 2007 9:54 am Post subject: |
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Thanks for the compliments guys.
Rowboat:
| Quote: | | Just to add to to that line of thought . If the boat hull doesn't work, just remove the enginemount and bolt it to another boat hull. |
Very good, Rowboat. That is my next goal. To be able to remove the enginemount and put it on another boat. A flatbottomboat for example. Then you can run any boat you want, without buying a new engine..
| Quote: | tommy Posted: Tue Aug 14, 2007 12:16 am Post subject:
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Tamo let me ask you something, through many tests and adjastments have you actualy figured out where would be the ideal position for the motor on this type of boat
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Now thats difficult to say. It's normaly just behind the back of the front sponson. But i thought it would be better iff you could adjust to the perfect position. Like Crispy sead: | Quote: | | Tommy, I don't think there is an "ideal" position for the engine in any boat. many factors come into play: position of the radio box, batteries, and servos all play a role in the CB of the craft....hence the reason for the adjustable engine mount. A 1/4" of movement (of the engine) might mean the difference between a speed demon and a water-plow. |
I think this is tru.
| Quote: | Francisco Posted: Tue Aug 14, 2007 11:24 am Post subject:
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You've been watching to many movies
The boat is indeed a multi-changer, as it comes near the shore it turns into Devastator as the tank tracks help with traction, then into Bumblebee when it gets into tarmac and then into Starscream when the wind blows nicely and flips it over. Only then will it turn into a mean robot and shoot all the other airboats into oblivion
Rowboat Posted: Tue Aug 14, 2007 10:22 am Post subject:
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I think that Tammo is building a Transformer airboat . I can see it now as soon as the boat hits dry land it will transform into a large robot and start running and start shooting at things.
Can't wait for vids M8.
You are always thinking Tammo, once again good work M8
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Do worry guys, we come in peace.  
Wanna see a real transformer Hope the link does it
http://www.youtube.com/watch?v=STQ3nhXuuEM&mode=related&search=
Ore this one LMAO
http://www.youtube.com/watch?v=akNJ6S2UqsE&mode=related&search=
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Pieter |
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saleens7
Joined: 09 Jan 2007
Posts: 772
Location: pembroke pines, FL
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Tammo
Joined: 09 Jan 2007
Posts: 675
Location: Netherlands
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| Posted: Wed Aug 15, 2007 10:28 am Post subject: |
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Realy nice .Saleens7
Sorry Chris, but just one for .....well..... the fun of it.
And then back to the topic.
But this on is nice too http://www.youtube.com/watch?v=tAZAcM7ZZps&NR=1
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Pieter |
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Rowboat
Joined: 10 Jan 2007
Posts: 1144
Location: Sydney Australia
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| Posted: Thu Aug 16, 2007 1:37 am Post subject: |
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I would like to get hold of that technology and some how apply it to my boats.. Great links tammo,saleens7 , Thanks.
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Tammo
Joined: 09 Jan 2007
Posts: 675
Location: Netherlands
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| Posted: Sun Aug 26, 2007 4:56 am Post subject: |
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Ok i have been holding back on you guys. 
Now you may think that you are drunk and seeing double. But thats not the case. Well... maybe you are drunk, but that's not the cause of seeing two boats. THERE ARE TWO BOATS 
Yes i am building two of these at the same time.
Here are some pictures:
Transom:
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Pieter |
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Rowboat
Joined: 10 Jan 2007
Posts: 1144
Location: Sydney Australia
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| Posted: Sun Aug 26, 2007 5:26 am Post subject: |
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DUDE ! THATS AWESOME!!!!!!!!!
SO whats the idea! two different setups? or something else? mmm 
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shaun
Joined: 09 Jan 2007
Posts: 1362
Location: Tasmania, Australia
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| Posted: Sun Aug 26, 2007 5:47 am Post subject: |
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that looks like one of andy's rudders
now that is sweet!!!
why 2...what if one sux adn the other follows...what do you do then?
but then again...you're tammo...the king of cool 3 pointers
shaun
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do unto others before others do unto you!! |
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tommy
Joined: 20 Jan 2007
Posts: 166
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| Posted: Sun Aug 26, 2007 12:01 pm Post subject: |
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Very nice indeed!!
I have one question? can you explain how the break away system functions on your rudder.
As pinky mentioned in the other thread, there is a certain type of nylon tubing that allows it to break away if anything serious hits it. But how would the actual rudder piece go back to its original position after it breaks away in the water. Wouldnt you loose control of the truning. Im a little confused |
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Tammo
Joined: 09 Jan 2007
Posts: 675
Location: Netherlands
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| Posted: Mon Aug 27, 2007 12:25 pm Post subject: |
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Thanks for the compliments guys.
| Quote: | tommy Posted: Sun Aug 26, 2007 6:01 pm Post subject:
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Very nice indeed!!
I have one question? can you explain how the break away system functions on your rudder.
As pinky mentioned in the other thread, there is a certain type of nylon tubing that allows it to break away if anything serious hits it. But how would the actual rudder piece go back to its original position after it breaks away in the water. Wouldnt you loose control of the truning. Im a little confused
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Well Tommy why don't you ask the designer of this GREAT piece of work, Andy Smith. He has designed and built these rudders. He can explain to you how they work.
| Quote: | shaun Posted: Sun Aug 26, 2007 11:47 am Post subject:
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that looks like one of andy's rudders
now that is sweet!!!
why 2...what if one sux adn the other follows...what do you do then?
but then again...you're tammo...the king of cool 3 pointers
shaun
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Good eyes Shaun. When they don't run propperly i can change allot of things on the boat to make it run good. But i did a floattest and it floated OK. Also the adjustable enginemount seems to work. I tested this to during the watertest and i could clearly see that the balancepoint shifted.
| Quote: | Rowboat Posted: Sun Aug 26, 2007 11:26 am Post subject:
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DUDE ! THATS AWESOME!!!!!!!!!
SO whats the idea! two different setups? or something else? mmm
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Well the deal is. Andy provided me with the rudders and he will get one of the boats. So it is a trade. I realy hope he will have allot of fun with it when it is finisched. I will have allot of fun with these rudders.
Seeing the rudders is one thing. You can see that they look great. But when you get your hands on the rudders you can see and feel that these rudders are very professional.
Thank you Andy
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Pieter |
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shaun
Joined: 09 Jan 2007
Posts: 1362
Location: Tasmania, Australia
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| Posted: Mon Aug 27, 2007 4:09 pm Post subject: |
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ahh payback on a different scale
i have to say that i really like the ajustability of this boat though.
with the way it is setup it would be easyer to chande adn shunt things around.
shaun
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Jasper
Joined: 08 Jan 2007
Posts: 2091
Location: Arlington, TX
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| Posted: Mon Aug 27, 2007 9:48 pm Post subject: |
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| shaun wrote: | i have to say that i really like the ajustability of this boat though.
with the way it is setup it would be easyer to chande adn shunt things around.
shaun |
Which makes for a boat that can be tuned for different weather conditions, power plants, race types, etc.
Sweet!
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Russell |
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Andy
Joined: 08 Jan 2007
Posts: 1112
Location: Lexington, NC
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| Posted: Tue Aug 28, 2007 1:03 pm Post subject: |
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Tommy's Question, How does a break away rudder work. Well, I know of two easy methods for a break away.
One being a pivot bolt and a nylon bolt (2 bolt method). Once the rudder hits and obstruction The lower bolt (nylon) breaks and the rudder swings back away from the obstruction on the pivot bolt.
Two.. just using one bolt. It's usally a larger bolt since there is only (one) and you want the bolt just tight enough that water pressure will not move it. But loose enough it will swing back when it hits and object.
The pic below show the turn fins up. Look and you can see the pivot bolt and the nylon bolt on the rudder assembly. I hope this give you a better idea on how they work. The turn fins and the rudder uses the (2 bolt method).
Future Hardware
All rudders will have the 2 bolt method
All turn fins will have one bolt method
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Andy
Joined: 08 Jan 2007
Posts: 1112
Location: Lexington, NC
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| Posted: Tue Aug 28, 2007 1:12 pm Post subject: |
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| tommy wrote: | | . But how would the actual rudder piece go back to its original position after it breaks away in the water. Wouldnt you loose control of the truning. Im a little confused |
Sorry Tommy over looked this question.
Ask yourself this question. Which is better a loss of rudder control or the loss of your transom.
This crash is what started me building rudders with BREAK AWAYS.
Just yesterday I was testing new hardware and YES I came to close to the shore line and hit a rock (15-20 mph). The nylon sheered and the break away worked. The rudder fell below the water line and I had left turning ability not right. Brought her in and 3 mins later she was back out.
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tommy
Joined: 20 Jan 2007
Posts: 166
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| Posted: Tue Aug 28, 2007 6:48 pm Post subject: |
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Ok i got the idea!! Thank You
Method two! with one bolt sounds like a simple and easy going idea 
Tom |
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Sean
Joined: 19 Jan 2007
Posts: 221
Location: Tustin, Ca
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| Posted: Wed Aug 29, 2007 5:49 pm Post subject: |
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If a spring could be incorporated, a one bolt system could be made to swing up when needed, then come back down when the obstruction is clear. This would also allow a water rudder boat to cross land, and continue in the water ( a dual rudder air/water would be needed to control said craft on land). You could use either a coil spring, to pull the rudder back down, or a leaf spring on top, to push the rudder back down. Then, if something was hit you wouldn't loose the transom or control. Pretty sure that would sell!
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