1/8 Scale Winston Eagle Hydro

[worthing3104]

Any thoughts or suggestions would be greatly appreciated.
Motor: Neu 1527 1.5y
Batteries: 2-5S Revo
ESC: Swordfish 240 PRO

Motor and drive train: Since the center section is offset in the hull everything (drive train) can just be centered in that section and placement of the motor (forward or aft) can be placed where it best suits the balance or is there a approximate measurement from the built up frame that makes up the rear sponson.

Turn fin: I will be using the Speedmaster Lg.turn fin that has no bend in it so what would be a good approximate angle for mounting and then it can be adjusted by the mount after the fact.

Strut: I somewhat remember that when I built my Miss Circus Circus hydro, it had some measurements (on the plans) for how far it drops below the belly but that it had a slight angle to it for a good starting point.

Prop: Would starting with a Octura 457 be too big (or too small), this was a go to prop when I was running nitro

Stuffing Box: Use Teflon tube or not, back in the day I used to run them. Is there an advantage to not using one besides it binding up in the brass.

[grsboats]

Motor Neu 1530 is my personal preference.

[worthing3104]

After figuring out that my desktop won't download pics, this is where I'm at as of today. Had it all framed up and the bottom ply attached as of last week, worked on building up the sponson's (riding surface and sides) during last week and laid some carbon fiber in the sponson's and sides in the rear today146686146687146688146689. Hopefully will have all the parts this week from RCBoatCompany so I can start working on the cowl and get the center sections all configured and carbon fiber laid down. Here are some pics of my progress so far.

[worthing3104]

Well, 100 views and only one response (grsboats) thanks for responding but had already bought motor setup, I'm in need of some assistance and can only hope the right person reads my post and can offer a little help.

Turn fin: I went with the large Speedmaster (blade is 3-1/2"tall) and it does have a bend in it so I figure I'll fix it to the sponson so that the mount is vertical. Where I could use some help is do I want to mount it so the entire blade is in the water or is there a about range (a minumum) and does the blade need to be in line with the outer most side of the riding pad?146708146709

[785boats]

I like to mount the fin so that the leading edge is right where the ride pad & dead rise meet on the heel of the sponson. I mount them as low as practical. Rough days need plenty of fin in the water.

[worthing3104]

Perfect....Thank You!!

[worthing3104]

About to mount the rudder and was wondering, On the full size hydro they ran counter clockwise so turn fin was on the left side and in pics online you can see that the rudder was mounted on the right. Since we run clockwise, turn fin is on the right. Should the rudder be mounted on the left or opposite side of turn fin. Does it matter or should this be done to stay with how the real hydro was set up. So that it's truly built to scale just in case I decide to race it.

[grsboats]

Yes it can be mounted in the left with no problems even if you decide to race it it will turn great.

[worthing3104]

Some pics, Using HRC motor mount and wanted mounting through the bottom of the hull so cut and shaped some aluminum to widen for drilling and tapping. JB welded pices to mount and also added three screws on each side to make me feel better. Got all hardware fixed to hull and drilled hole for shaft tube and ran water cooling lines.
The trick I read in a post about adding salt in the brass tube before bending (genius) came out nice. Ups showed up today with all my parts from RCBoaycompany and got a start tonight on the front. 146885146886146887146888146889

[grsboats]

Brass tubes can easily be bent just heating them till they change color..let them cold down and you will found out how soft they became.

[worthing3104]

Well, Finally got the carbon fiber laid down in the center section..been a little hectic around the house lately but should be able to make some good progress in the next couple of weeks...will be the last time I do this as the process is time consuming but turned out pretty good for the first time working with carbon fiber and should pop nicely when color ia laid down and motor is mounted.147479147480

[worthing3104]

Got some updates finally, added the wing mounts got plumbing in and foamed everything except where the front wing is mounted. used a carbon fiber tube to tie the front together148141148142148143148144

[worthing3104]

Also got the decks on (glad that's done) this weekend and mounted uprights and wing using RCBoatCompany's hardware, turned out pretty good. prior post shows flaps on front wing, going to put on auxillary channel so they can be adjusted by knob or thinking maybe about mixing with the throttle channel, Still thinking about that one.148148148149148150

[worthing3104]

Rotated this one148151

[RandyatBBY]

Nice build. I like all the flotation.

[worthing3104]

Thanks Randy, It's been slow going but the holidays are about over and I'm getting things done slowly but surely. Got the front wing hinges installed on the flaps, padded up the rear hull wings and got the initial shape done, The front flaps will be operational and assigned to an auxiliary channel on radio148506148507[ATTACH=CONFIG]148508[/ATTACH

[worthing3104]

Also worked on the fitment of the cowl, got the framing epoxied to it 148509148510148511148512and worked on the cowl latches tonight getting them installed. Servos will be here tomorrow and can start work on setting up the servo that will work the flaps and finalize the push rod for the rudder by the weekend, Figure I should be ready for primer in about four weeks.

[worthing3104]

Some updates, built the rear deck that will have the turbine tube attached to it. Found the tube at summit racing (intake tube 3-1/2") a little heavier than making one but it's a solid piece with no welding or gluing of seams.148899148900148901148902148903

[worthing3104]

The tube 148904

[worthing3104]

Got the rudder servo (MKS) 148905148906148907and rod setup, using carbon fiber rod with the OSE rod ends.

[worthing3104]

Here's a few of the setup for the flaps, will be adjustable on the radio (Airtronics)148908148909148910 using an auxiliary channel and a MKS wing servo mounted to the battery tray I made up

[worthing3104]

A few pics of the boat. Am using catboi's idea for the mounting of the window plastics148911148912148913148914148915

[worthing3104]

Rotated a few pics for better viewing148916148917148918148919

[worthing3104]

Did all of the filling this past week using bondo (wood filler) and will do all of the final sanding this next week and the sealing of wood. Sand one more time then take it to a buddy that will lay down the primer for me. Should be done with all that in about two weeks then color can be laid down. Can't wait to be done with this project but it's been fun trying to figure things out and prefab something from scratch.

[WestJL21]

Very nice build !!! :popcorn2:

[worthing3104]

Thank you WestJL21!! Got everything sanded and ready to start sealing wood tomorrow. Got the graphics today, Mike at Thunderboat Graphics did an awesome job and can't wait to see them on and paint will be here on Wednesday. I can finally see a lttle bit of light at the end of the tunnel...lol

[Spudnut]

How are you going to seal the wood and prep for primer?

[worthing3104]

I used a epoxy finish resin...sanding wasn't too bad...usually where I start to lose my patients but came out pretty good and primer laid down nice

[Beaux]

beautiful boat , very very nice.

[worthing3104]

Thank you!!...Will post some pics soon...all parts are painted white and have some of the smaller parts ready for clear.

[worthing3104]

Life has a way of getting in the way (to many projects going at the same time) but here are some updated pics152293152290152292

[worthing3104]

Clear going on152294152295152296

[worthing3104]

Stand...got the idea from catboi...ty152297

[worthing3104]

Some assembly152298152299152300

[worthing3104]

152301152302152303

[Fast One]

I hear you!, time waits for no man.
It will be interesting to see how sensitive the boat responds to the Rc flaps. I was thinking of doing a similar system on the rear fin of my 1/8th 7-11 hydro.

[Beaux]

Dam! That's a nice boat.

[worthing3104]

Yeah, I hope I didn't over think having the flaps on a servo and that it's worth the functionality and being able to adjust them while your running pays off. Thank you Beaux!

[pescador]

Gorgeous boat, nice job [emoji106]
I have the flaps on my Smokin Joes working as well, I was thinking of mixing them into my steering so they are up on the straights and flat on the corners.


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[worthing3104]

Right now I have it on a auxiliary channel controlled by a knob by the handle using my thumb to control but I also thought about mixing it with the throttle so at full throttle they would be up and slowing down in the corners they would flatten out. On my last hydro (circus circus) I was able to keep it pinned on the entire lap so don't know if mixing with throttle would pay off. Would love to see some pics of how your front flaps are hooked up if possible. I've never built a (scale) hydro before just built boats and painted them however. Thank you tho, it's been a challenge but I dig it.

[pescador]

Sure, hopefully this vid will work, it's a pretty tight squeeze in mine with 10s but man it sure goes :). I'm using a receiver pack for now waiting for a new bec that's on the slow boat.

https://youtu.be/MYatiAPd7hc

https://uploads.tapatalk-cdn.com/20170705/391b02d66a05d2c444cdfa658ba4b26e.jpg


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[worthing3104]

How did you seal the hole for the rod. I actually had to make a crescent shaped slot for the rod that threads into the flap. I was so exited about coming up with the idea that when I set it up, the control rod doesn't rotate on the hinge axis but right behind it giving it that crescent rotation. I came up the idea of using a control rod rubber seal on the assembly that will be pressed against the side of the hull to seal it. Hopefully it seals good since that's where the batteries and esc are going to be. Will post a pic later this week when I put it together.

[pescador]

I wasn't the original builder of this hull but it looks like a solid shaft in a couple nesting brass tubes, it must be a fairly good seal I haven't noticed it leaking. https://uploads.tapatalk-cdn.com/20170705/88bc83d6a500c4b083e41ccb07949fe8.jpghttps://uploads.tapatalk-cdn.com/20170705/1bd58dabd9d4d722f7b9ed91e2129344.jpg


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[Tom G]

Also worked on the fitment of the cowl, got the framing epoxied to it 148509148510148511148512and worked on the cowl latches tonight getting them installed. Servos will be here tomorrow and can start work on setting up the servo that will work the flaps and finalize the push rod for the rudder by the weekend, Figure I should be ready for primer in about four weeks.

What is the brand of Ur Cowl latches

[worthing3104]

Got them from f3a unlimited, secraft one touch canopy lock

[Tom G]

TNX Bud

[Tom G]

If U don't mind me asking what weight Carbon fiber and brand of resign did U use. I'm just about to that point in my build and need to order some materials

[worthing3104]

Think it was 7oz, got it on ebay. If you mean design, didn't really have one. Just wanted to do the center section so when I set up the motor and battery tray it pops. I'm also using clear plexiglass covers so when cowl is off you can see the setup. I actually cut it in squares and rectangles then resin'd it in to just give it the carbon look. I put bigger pieces in the sponsors to help tie all the wood together