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  #1  
Old 05-10-2006, 08:12 PM
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D.Smock D.Smock is offline
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Scratch built recovery boat

She is bigger than she looks at 46''X27''X4'' and weighs 36lbs ready to go to work.
It is constructed out of polyurethane foam left over from a walk in freezer installation. The hull is three pieces,two sponsons (4''x6''x46'') and a center section (12''x15''x4''.) I notched the center(inside) of the pieces so they could be joined by a pressure treated 2x4. The 46'' 2x4 was cut down to a 2x2 for 34'' of its length. This way I was able to lock all three pieces together. I used Gorilla glue for the assembly. If you look closely at the one picture I have of the hull being built you can see the 2x2 portion of the wood embedded in the center of the sponson.
Then I took two pieces of 1 1/2'' x 1/8"x15'' aluminum and installed them flush in the center section. The front one was slid in over the wood, and the back one was slid in under the wood. This way all the weight of the lift is transfered to the wood and the deck plate could be secured to it.
The hull was then shaped and covered with two layers of glass.
Attached Images
File Type: jpg hull.jpg (53.2 KB, 256 views)
File Type: jpg bow.JPG (115.6 KB, 186 views)
File Type: jpg bow raised.JPG (116.9 KB, 182 views)
File Type: jpg side raised.JPG (119.5 KB, 213 views)
File Type: jpg hull bottom.JPG (116.8 KB, 193 views)
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Old 05-10-2006, 08:29 PM
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Lift assy.

The entire lift assy is made out of aluminum. The 31''x13'' basket is made out of 5/8'' round stock and the net is a old fishing net. The12vdc lift servo is out of a 100qt. commercial mixer. They are used to lift the bowl.( I do mixer work for a large doughnut chain and was able to take a couple of bad ones and make a good one) :yeah: There are other ways to do this but I thought this was the easiest.(and coolest)
In case you are wondering,the light housing is a cigarette lighter adapter retrofitted with Mag Lite parts and white LEDs
Attached Images
File Type: jpg deck plate.JPG (117.5 KB, 123 views)
File Type: jpg basket hinge.JPG (118.5 KB, 120 views)
File Type: jpg servo1.JPG (118.3 KB, 155 views)
File Type: jpg servo2.JPG (118.7 KB, 163 views)
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Last edited by D.Smock; 05-11-2006 at 06:56 AM.
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Old 05-10-2006, 09:01 PM
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Radio box and controls

The radio box is pretty busy. It houses two Pro Boat speed controls,reciever,up/down servo w/micro switches,up/down relays and a servo /micro switch for the lights.
The up/down micro switches energize the relay coils provided the limit switches aren't open. (you can see the up limit at the end of the red tube, and the down limit beneath the lift servo).
The radio is a Futaba Skysport 6.(surface unit),I added the hardware to the left stick to return it to neutral. The lift is controlled by the pot.on the right side of the radio and the lights by a switch on the left.
Attached Images
File Type: jpg radio box.JPG (120.5 KB, 120 views)
File Type: jpg up limit sw..JPG (117.7 KB, 81 views)
File Type: jpg down limit sw..JPG (118.2 KB, 76 views)
File Type: jpg light on.JPG (120.2 KB, 112 views)
File Type: jpg transmitter.JPG (118.2 KB, 73 views)
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Last edited by D.Smock; 05-10-2006 at 11:39 PM.
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  #4  
Old 05-10-2006, 09:56 PM
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Power and misc.

The drives are made from K&S brass,4mm ss stock and bronze bushings. I threaded one end for the Graupner 35mm three blade scale props.
Motors are Bosch 14v coupled to the drives with Graupner 5mm X 4mm flex couplings.
The boat has no rudders,it drives like a Bobcat. It will turn around in it's own length and is pretty quick for what it is.
The batteries are 10cell 2400ma nicad medical packs.(long story)
The lift servo has it's own battery and the motors share three packs wired in parallel.
7200ma will get us through a pretty busy day without a battery change.
The power switch is on the end of a sponson so the boat can be pulled up to the bank,the net lowered to anchor it,and then when it is needed,it is the flip of a switch away.
I stand it up on the transom and secure it to the wall of my trailer for transport.
We can't put any kind of(real) boat in the water where we hold club meetings,and a tugboat and tennis ball are ok,(unless you have one bow up)but we haven't had a recovery need that "Diversified Recovery" has not met.
Upside down,half sunk,scale,sail,FE,drivers heads,pilot houses,blown hatches,big sticks and drink bottles,it does it all.:yeah:

Thanks for the interest,
Doug S.:wave:
Attached Images
File Type: jpg motor.JPG (115.2 KB, 140 views)
File Type: jpg on off sw.JPG (113.4 KB, 100 views)
File Type: jpg cbr.jpg (58.8 KB, 160 views)
File Type: jpg dual.jpg (178.6 KB, 245 views)
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Last edited by D.Smock; 05-10-2006 at 10:06 PM.
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  #5  
Old 05-10-2006, 10:04 PM
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very cool!!!!!!!!!!!

doug very cool job!!!!!! nicely done!!!
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  #6  
Old 05-10-2006, 10:21 PM
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Here's a pic of the recovery boat in action. It has save my butt countless of times.
chris
Attached Images
File Type: jpg P9030043.jpg (49.7 KB, 233 views)
File Type: jpg ClubPix05G15.jpg (41.9 KB, 144 views)
File Type: gif Underdog1smaller.gif (16.5 KB, 152 views)
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Last edited by chrisgski; 05-10-2006 at 11:44 PM.
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Old 05-10-2006, 10:25 PM
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chrisgski chrisgski is offline
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some boats are just dying to get in too....:wave: hehehehehehe
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File Type: jpg P9030030.jpg (61.4 KB, 181 views)
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Last edited by chrisgski; 05-10-2006 at 10:56 PM.
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  #8  
Old 05-11-2006, 10:24 AM
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Hell Yeah,
Thanks for taking the time to post this.
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  #9  
Old 05-11-2006, 07:02 PM
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Quote:
Originally Posted by Stratcat
Hell Yeah,
Thanks for taking the time to post this.
Thanks Eddieh,
You're welcome Stratcat,
We have enjoyed it. It is the first thing I put in the water and the last to come out. Most of our fast guys have gotten pretty good at using it. It is a different animal for sure,and a lot of fun to operate :thumup:
When I first built it my son wouldn't run one of his boats, he would just sit there and wait for someone to need help. It usually didn't take long.
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Old 05-11-2006, 08:21 PM
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Wow! That recovery boat is totally amazing and awesome! You get my vote for Engineer of the Year!!!! :beer:
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  #11  
Old 05-17-2006, 01:26 AM
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Randy Naylor Randy Naylor is offline
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Great build thread! I need to finish the recovery unit we started 6 years ago.
We use to have a nitro friend that had one they are a blast to drive. :yeah:
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  #12  
Old 04-15-2009, 12:00 AM
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H2OCamel H2OCamel is offline
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Dang I wish I could see the pictures I need to build one since I barrel rolled my HPR-115!
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Old 04-15-2009, 09:16 AM
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Why can't I see the pics?
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  #14  
Old 04-15-2009, 09:19 AM
jimw jimw is offline
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Jeff,

Pics have been down for about 2 weeks now because of a worm in the system.
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  #15  
Old 04-15-2009, 06:26 PM
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Jeff Wohlt Jeff Wohlt is offline
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Thanks, Jim. I was aware of that but saw this post and wondered why and was feeling left out. :(

KMOT: Wow! That recovery boat is totally amazing and awesome! You get my vote for Engineer of the Year!!!!
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  #16  
Old 06-06-2009, 03:57 PM
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Quote:
Originally Posted by H2OCamel View Post
Dang I wish I could see the pictures I need to build one since I barrel rolled my HPR-115!
I found another place I posted them that I had forgotten about. Scroll to the top of the page.

http://www.jrcbd.com/showthread.php?...ed=1#post94694

Doug :wave:
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Last edited by D.Smock; 06-06-2009 at 03:59 PM.
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  #17  
Old 06-06-2009, 04:22 PM
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H2OCamel H2OCamel is offline
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Thanks Doug!
I am building one similar and have 2 rotating tug drives coming for it. The basket info is what I needed the most! You rock!:yeah:
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Old 06-06-2009, 07:41 PM
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Quote:
Originally Posted by H2OCamel View Post
Thanks Doug!
I am building one similar and have 2 rotating tug drives coming for it. The basket info is what I needed the most! You rock!:yeah:
Be sure and post pics of your rig, I'd love to see it!!:yeah:

Doug :wave:
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  #19  
Old 06-06-2009, 10:28 PM
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graill graill is offline
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Nicely done, love the photo of it having already eaten two rigs.......NOM, NOM, NOM :yeah:
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  #20  
Old 06-07-2009, 03:58 AM
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Gerwin Brommer Gerwin Brommer is offline
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Here is the recoveryboat I designed, I donated it to the "club" in Holland.
Free plan : http://www.2brothersrc.com/powerpete/boatzillaplan.jpg
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File Type: jpg IMG_1264.jpg (161.5 KB, 28 views)

Last edited by Gerwin Brommer; 06-07-2009 at 04:08 AM.
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