Dumas 36" Atlas Van Lines Hydro

[worthing3104]

Hello Hydro Builders. Going to start another boat build as I'm having sellers remorse (4 yrs. later) about selling my 1/8 Scale Winston Eagle. It will be more of a custom build in my mind. But would like some advice or thoughts about what would be OK to change and what might not be a good idea. Thoughts are widening the air trap by 1", making it 10" wide. Moving the front deck nose 1 to 1-1/2" back, adding a canard up front and possibly not installing the wing so it takes on the looks of more like a Sport 40 instead of a Scale Hydroplane. Thoughts about widening Air Trap, moving the nose back and adding the canard up front are my concerns. Do you think the changes I'd like to do will hinder the performance of the boat?? Let me have it!!!

[srislash]

Are you going with the 1/8 again? If so perhaps an adjustable canard. If you pack more air in it may cause issues but perhaps with the canard for compensation...

Shawn

[worthing3104]

Are you going with the 1/8 again? If so perhaps an adjustable canard. If you pack more air in it may cause issues but perhaps with the canard for compensation...

Shawn

No, this boat is considered 1/10 scale I believe. I'm going to make the canard adjustable for sure. Fixed adjustable, not on a servo. I searched threads about this boat and one guy posted a list of what he would do differently and he mentioned making the air trap minimum 10" wide. I would assume for more stability?

[srislash]

No, this boat is considered 1/10 scale I believe. I'm going to make the canard adjustable for sure. Fixed adjustable, not on a servo. I searched threads about this boat and one guy posted a list of what he would do differently and he mentioned making the air trap minimum 10" wide. I would assume for more stability?

A bit wider track would make it more stable. Yeah if the canard is where it should be only very fine adjustments should be needed(air under or above hull).

[worthing3104]

A bit wider track would make it more stable. Yeah if the canard is where it should be only very fine adjustments should be needed(air under or above hull).

Thanks for chiming in srislash!! I appreciate it!! I just saw the plans for this boat today and the sponson ride pads were very generic for that time period. Do have any input as far as that? Maybe some kind of modification to those. The Winston Eagle (1994) I built had a couple steps to them.

[srislash]

I am kinda new to the hydro game as of late . But have been reading a lot and paying attention. I just modified an old Proboat Miss Bud and painted it in Homestreet livery. I modified those sponsons with a couple degrees dihedral on the inside sponson and a bit more AOA. There were a little aerodynamic changes as well but all was successful.
So dihedral a bit on inside sponson and almost dead flat on the outside sponson. Steps are only useful if the whole surface is running in the water as it creates air under the hull. I would think just the trailing edge of the sponson should be touching the water on a 1/10

[worthing3104]

I am kinda new to the hydro game as of late . But have been reading a lot and paying attention. I just modified an old Proboat Miss Bud and painted it in Homestreet livery. I modified those sponsons with a couple degrees dihedral on the inside sponson and a bit more AOA. There were a little aerodynamic changes as well but all was successful.
So dihedral a bit on inside sponson and almost dead flat on the outside sponson. Steps are only useful if the whole surface is running in the water as it creates air under the hull. I would think just the trailing edge of the sponson should be touching the water on a 1/10

Thought you might be interested in an update. Tacked up framework on an 8-1/2" jig, then fileted the framework. Made jig 10" wide, tacked the sponson sides to jig. Centered Cowl section on forward ply bottom. Tacked everything to it. Added spnson chines and shears. The air trap is now 10" wide and the overall width at sponsons will be 17-1/2". I like it!!

[worthing3104]

20230604_202132.jpg20230604_202121.jpg[ATTACH=CONFIG]177120230604_190522.jpg00[/ATTACH]20230604_180939.jpg

[worthing3104]

Well, for anyone that's watching. Glued on non trip chine and sponson sides and bottom. There's also a photo of about where the motor and batteries will be located. Next step, carbon fiber inlay in the sponsons an[ATTACH=CONFIG]120230609_221918.jpg20230609_221906.jpg20230609_221540.jpg77147[/ATTACH]d non trip chine.

[srislash]

Looking good

[worthing3104]

Looking good

Thanks!! Got the carbon fiber laid laid down and installed strut and driveline this weekend.20230611_115507.jpg20230611_220621.jpg

[worthing3104]

All hardware is mounted, stuffing box is epoxyed in and foam floatation done.20230629_212327.jpg20230629_212327.jpg[ATTACH=CONFIG]177339[/AT20230702_104800.jpgTACH]

[worthing3104]

Motor mount is also done. Just need to get ready for paint20230629_212419.jpg

[worthing3104]

Update for anyone following. Foam installed in battery locations and got.the d20230730_181705.jpg20230803_184700.jpgecks on.

[worthing3104]

Since this will be a sport 40 version of the AVL. I'm modifying the canopy.20230803_213754.jpg20230803_213821.jpg

[worthing3104]

Canopy is almost done. Still has the AVL looks, just more sleek looking from side view20230807_180040.jpg20230807_180040.jpg20230807_180051.jpg20230807_180029.jpg20230807_180022.jpg

[worthing3104]

Canopy and cowl are skinned. Now comes the fun part. sanding, fixing gaps (minimal), sealing the deck and getting it ready for paint. Can't wait to show who's following how the paint will look. [ATTACH=CONFIG]120230810_192246.jpg77580[/ATTACH]Enjoy!!20230810_201007.jpg

[paulejr]

Looking good! Can't wait to see the paint job. I might be interested in a plug (or a copy of the one you did) of the canopy as i have the same model and not happy with the one Dumas called out...

[Bande1]

I want to a sport 40 but I really dont want to build it.

[worthing3104]

Paulejr Thanks, I really like how the cowl turned out. Here's a sneak peak of the colo[ATTACH=CONFIG][ATTACH=CONFIG]17758520230626_113656.jpg[/ATTACH]177583[/ATTACH]20230626_113723.jpgrs I'll be using.

[worthing3104]

Finally got some time to sand it down and apply first coat of primer. Will sand that down, find any imperfections and do a little body filler. Should be able to lay down colors in 3-4 weeks. Still to hot here in Vegas to paint.20230829_190105.jpg20230829_190058.jpg20230829_190046.jpg

[Bande1]

what did you seal the deck with?

[worthing3104]

what did you seal the deck with?

The entire boat was sealed with marine grade epoxy resin.

[worthing3104]

Basecoat white is done. Going to take a couple days to draw the design and tape it off. Hoping to finish the 4 colors by the end of the weekend. 20230905_193644.jpg20230905_193644.jpg20230905_193623.jpg
20230905_193632.jpg

[worthing3104]

First color down20230906_200256.jpg[ATTACH=CONFIG]20230906_195421.jpg[ATTACH=CONFIG]1720230906_195408.jpg7819[/ATTACH]177818[/ATTACH]

[worthing3104]

Color#220230908_195543.jpg20230908_195555.jpg

[worthing3104]

3rd Color20230908_231712.jpg20230908_231843.jpg20230908_231900.jpg20230908_231738.jpg

[zooma]

Beautiful

[worthing3104]

Beautiful

Thank you zooma!! There will be a pretty cool detail in the last color. Fingers crossed!!

[worthing3104]

Windshield 20230909_212219.jpg