Who makes this Eco?

[Gerwin Brommer]

" Rules " :

Rudderaxle : 10% of hull-lenght ( looking from the back )
Front op prop : 25 % """"""""""""""""""""""""""""""""""""
Rudderaxle-angle : 90 degr. to driveshaft-angle
COG : where the tubing exits the hull.

That are the basic-settings for any given eco.

[Darin Jordan]

Thanks Gerwin... I appreciate you taking the time to provide that info...

[Steven Vaccaro]

Picture

[Steven Vaccaro]

Had something to do with the file being a gif. I changed it to jpeg and it didnt get resized by the forum.

[Gerwin Brommer]

Thank you.

[BILL OXIDEAN]

Bill :

I'm building the Hopf Eco with the Etti hardware ( 1.5 mm pianowire ), did you use the
coupler from Etti ? Can it deal with the power ?

Indeed the ETTI can hold it.
Those ETTI drives are SAWEET eco drives..

Check out these nitro Ecos http://www.toys-port.hu/en/index.htm Then go to purpose
I mean, I know this is Offshore ELECTRICS but they could make for broader understanding..

[Gerwin Brommer]

Bill,

That are no eco's.
They are from the so called "FSR-boats". A racing-class here in Europe.
Do you guys know that class , on your side of the ocean ?
I agree, they look the same and both have fully submerged props.

[BILL OXIDEAN]

Awsome turning in such a small area. I still don't understand how folks could use stick radios lol

I'm not gonna' lie to you.
I TOTALLY miss running stick radios.


If you guys really get involved with ecos, I'll be stoked.
Its a long shot, but it'd be awesome to run it at the nats..
I have 2 and would let some clown drive one..

[Gerwin Brommer]

I love my Futaba T3VC !! :-)
Sticks forever ! :-)

[Paul Pachmayer]

Hi Darin,

Here ya go. .098 flex shaft with just a touch of negative angle, it's also adjustable. Hughey profiled rudder.

Paul.

[j.m.]

Are there any general rules as to the shape of these hulls?

Ideal dead rise angle?
Any width to length ratios?
Length of the straight portion of the keel in relation to the length/radius of the Curved section?
Spray rails? or
Size of the flood chamber?

I'm thinking about seeing if I can't design an "ideal" eco (many, many scratch build wooden models for testing), and then get that hull design all over in the US as a sort of one design racing class. Similar to the SV27 class.

~Jon McLendon