RE: Scratch building a 1/8 Hydro  
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RE: Scratch building a 1/8 Hydro - 12/5/2007 6:03:11 PM   
Hydro Junkie


 

Posts: 1965
Joined: 11/2/2004
From: Marysville, WA, USA
Status: offline 		Okay, let me clarify something. On all the turbine boats after about 1990, all had a 38" wide left sponson and a 48" right. The right was wider to give the bottom a better profile for cornering as well as a better deck shape for crossdeck airflow. this being the case, the Pro Boat Bud should have a wider left sponson than right, while the Insane may not show any differences at all. Just a thought.

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       Post #: 26

RE: Scratch building a 1/8 Hydro - 12/5/2007 10:10:21 PM   
thevirginian


 

Posts: 1397
Joined: 4/13/2004
From: chesapeake, VA, USA
Status: offline 		Thanks for the heads up, Junkie. I guess what you're referring to is more applicable for the scale Hydros, am'I right?

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       Post #: 27

RE: Scratch building a 1/8 Hydro - 12/5/2007 11:37:09 PM   
Hydro Junkie


 

Posts: 1965
Joined: 11/2/2004
From: Marysville, WA, USA
Status: offline 		Just wanted to be sure you got correct info and could make any decisions based on said correct info. You know what they say, garbage in garbage out

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       Post #: 28

RE: Scratch building a 1/8 Hydro - 12/6/2007 2:29:13 AM   
thevirginian


 

Posts: 1397
Joined: 4/13/2004
From: chesapeake, VA, USA
Status: offline 		BTW, I just got home from my buddies shop where I had a chance to check the sponsons of his "Insane" Hydro. Sure enough, the angles on the bottom of the sponsons are different. Thr right sponson is at 5°, the left at 2.5°. Other then that the are the same.

(in reply to Hydro Junkie)
       Post #: 29

RE: Scratch building a 1/8 Hydro - 12/10/2007 12:34:38 AM   
chief3452


 

Posts: 161
Joined: 11/1/2007
From: Indianapolis, IN, USA
Status: offline 		Hey Virginian,

What's the latest? Been getting some sawdust on that new scroll saw? Got your plans finalized?

Scott

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       Post #: 30

RE: Scratch building a 1/8 Hydro - 12/11/2007 12:20:44 AM   
thevirginian


 

Posts: 1397
Joined: 4/13/2004
From: chesapeake, VA, USA
Status: offline 		Hey chief;
Finally got my plans worked out and the ply on order at BalsaUSA. Really good prices on plywoods. Hopefully, in two, three days I can get started making some dust. As I promised, I will keep you guys posted.

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       Post #: 31

RE: Scratch building a 1/8 Hydro - 12/18/2007 2:53:21 AM   
thevirginian


 

Posts: 1397
Joined: 4/13/2004
From: chesapeake, VA, USA
Status: offline 		Finally my ply wood arrived. New work bench, new scroll saw. What more can I ask for. This project is about to begin. The parts are glued to the ply wood, ready to be cut out. Should have something together by following weekend.

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       Post #: 32

RE: Scratch building a 1/8 Hydro - 12/19/2007 1:22:55 PM   
chief3452


 

Posts: 161
Joined: 11/1/2007
From: Indianapolis, IN, USA
Status: offline 		Hey Virginian,

The drawings look awesome. That CAD is the bee's knees, man. Can't wait to see some stuff glued up. How is the new scroll saw working?

Scott

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       Post #: 33

RE: Scratch building a 1/8 Hydro - 12/19/2007 5:54:18 PM   
thevirginian


 

Posts: 1397
Joined: 4/13/2004
From: chesapeake, VA, USA
Status: offline 		It's a killer machine, chief. Don't know what I would do without it. One more evening and everything is cut out. Then the gluing will begin. I hardly can't wait to see the sceleton glued together. But first I still have to make me a building jig for accurate alignment of the stringers and bulkheads. I will document everything with plenty of pictures for you. How is your project coming? Any progress? Let's see some pix.

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       Post #: 34

RE: Scratch building a 1/8 Hydro - 12/20/2007 12:14:13 AM   
chief3452


 

Posts: 161
Joined: 11/1/2007
From: Indianapolis, IN, USA
Status: offline 		Hey Virginian,

Sounds like you are well on your way. I just built a jig for another project boat, no small feat considering I can't seem to find a flat level surface anywhere in my garage, lol. I ended up using 2 granite window sills leveled up with popcycle sticks as my truing stand for the jig...don't ask ! It came out square so that's all that matters, lol. As for my build, I might be able to have some pics of my new cowling construction tomorrow...I am redesigning my cowls to reflect the true scale look of the 7 litre boats. Building from scratch is never boring, eh? I plan on sealing the inside of the hull so I can lay down the sponson tops and decks after Christmas so I should have some pics of that next week. I need to buy a radio, what gear are you planning on using in your hull? Can't wait to see the skeleton when you get her all set. Take care,

Scott

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       Post #: 35

RE: Scratch building a 1/8 Hydro - 12/20/2007 4:00:22 PM   
thevirginian


 

Posts: 1397
Joined: 4/13/2004
From: chesapeake, VA, USA
Status: offline 		Hey, chief;
I faced the same hurdle with not having a true work bench. So, I finally cleaned up my garage and bought me laminated boards from Lowe's. They are 6'x12" and glued them together in two layers. Now I have a very flat and stiff work bench (6'x3'x1.5" , big enough for most of my projects. I am holding off with building my cowl 'til I am finished with my hull. I have attached the layout of my cowl. I am going to build it from foam and glass over it. That way I don't have to build a mold. My radio is going to be a Futaba 3 channel 2.4. As running hardware I designed my own gear. Next time I 'll post some pix for you. Happy building.

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       Post #: 36

RE: Scratch building a 1/8 Hydro - 12/21/2007 3:40:35 AM   
thevirginian


 

Posts: 1397
Joined: 4/13/2004
From: chesapeake, VA, USA
Status: offline 		Finished cutting out all parts, tonight. After that I had to put them together to see how everything fit. I was really pleased the way it worked out. What you see is a jigsaw puzzle without a drop of glue. She starts looking like a boat. Now I have to slow down a bit, or I will run out of work too soon. And winter has just begun.

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       Post #: 37

RE: Scratch building a 1/8 Hydro - 12/21/2007 9:48:44 AM   
Hydro Junkie


 

Posts: 1965
Joined: 11/2/2004
From: Marysville, WA, USA
Status: offline 		Looks good so far, but I see areas that need attension while it's still easy to fix them:
1) you need to put lightening holes in the front sponson frames. Otherwise, the sponson tips might become what are referred to as fish tanks
2) the sponson sheers need to wrap all the way around the front of the sponsons to the sponson insides to give the sponson skin something to be glued to unless you plan on solid blocks in the sponson tips, which I would advise against
3) I would install 3/16th square spuce stringers anywhere the skin and internal framing has a 90* butt joint for increased strength. Butt joints are not very strong and will crack easily in hard running or rough conditions
4) You should redesign your sponson transoms so that they run all the way against the engine bay walls for greater strength and less chance of loosing the right one in a corner from the stress of the skid fin. A drain hole in each woud be a good idea as well
5) you really need to notch the sponson bottoms at all corners and put some sort of framing running lengthwise so your bottom skin panels have something to be glued to on the edges besides each other, since that won't hold up either

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       Post #: 38

RE: Scratch building a 1/8 Hydro - 12/21/2007 9:52:14 AM   
Hydro Junkie


 

Posts: 1965
Joined: 11/2/2004
From: Marysville, WA, USA
Status: offline 		Here is a picture of a boat that I ahve under construction. You can clearly see what I am referring to in each area

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       Post #: 39

RE: Scratch building a 1/8 Hydro - 12/21/2007 9:58:32 AM   
martno1fan



Posts: 7798
Joined: 1/20/2005
From: blackpool, UNITED KINGDOM
Status: online 		wow she looks great im taking it that you are glassing the finnished hull?,if so it should hold up fine if not i agree more strength needed.

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im not argumentative im just missunderstood

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