Simon's Balsa Rigger

[Simon.O.]

Hey Simon! look really nice man, any sketch for me?

Thanks for the compliment ED.
I will get run up a set of sketches similar to the Canard ones. What you did with those was very good and I hope to see at least one hull built by someone.
It will take me few days to get the sketches together for you.

Just like new... ready for the next confrontation.

Jan, you are right, it is now ready for more combat

[nauti-tucu]

After all the info I gathered from the Rigger design thread here it is.

The LOA is 630mm
The sponsons are at 240mm inside to inside
Sponson to tub gap is 90mm
Sponsons are 15mm below the tub line.
Cf booms
Cf rudder and turn fin
All hand made hardware.

Will run a Superstock 23t (27krpm) motor
0.62 wire drive
531 or modded prop
6 x IB4200 push the smoke about.

I am waiting on a mini servo and a few other small bits to complete the build.
Hatches are made and varnish is drying.

Comments + Questions ??

Hi:
I´m the new kid on the block...so I start:
Simon.O.:
¿plans?, ¿any video?
Thanks from Spain.
Great job... really.-

[Simon.O.]

You will notice earlier that ED has offered to draw up a set of plans for this one.
I don't realy draw plans myself but work from a set of hand drawn pencil sketches. ED did a fantastic job with the information that I sent him for my Canard.

To get you started it may help to look at the plans for the Predator. Mine is loosly based on this design using the basic overall proportions and critical angles.
I can send you a copy of the Predator plans if you want.
Just send me an e-mail and I'll reply with the plans.

Of interest, will this be your first boat ??

[nauti-tucu]

Hello:

You will notice earlier that ED has offered to draw up a set of plans for this one.
I don't realy draw plans myself but work from a set of hand drawn pencil sketches. ED did a fantastic job with the information that I sent him for my Canard.

To get you started it may help to look at the plans for the Predator. Mine is loosly based on this design using the basic overall proportions and critical angles.
I can send you a copy of the Predator plans if you want.
Just send me an e-mail and I'll reply with the plans.

Of interest, will this be your first boat ??

Yes, I want a copy of the Predator.
My e-mail is: jjalmazan_es@yahoo.es
No, I have a INXS´s rigger by MHZ... but I crashed it.
I´m building a Matrix (by plans ).

Thanks for all.-

[nauti-tucu]

Hi:
Sorry... the photo:

[Avanti]

DOH! that rigger is not happy with you right now. I can send the predator plans

Hi:
Sorry... the photo:

[ED66677]

Simon's, got the sketche!
something worries me... the bottom of the sponsons are parallel to the water? no angle?
8° angle of attack to the sponsons seems a lot to me?

[ED66677]

first draft here!

[ED66677]

... and 3D here!

[ED66677]

Updated!
DXF for Brushed motor here
DXF for Brushless motor here
DXF Evolution for Brushless motor here

[nauti-tucu]

Hi:
Thanks for the plans.-

[nauti-tucu]

Hello:
News ????

[Simon.O.]

It is now sporting the new 8S Fiegao and a 100A speedy from Steven.
Running a 6 pack of IB4200's and a 431 prop this thing is insane.
At wot it is well out of shape.
The rear is very very loose and I suspect the massive increase in power is the cause.
It appears that it rides up on the prop a lot higher and this in turn makes the tail very loose.
I have observed my semi-shovel hydro do this with a 531 instead of the 431, the tail gets well up and pushes the nose in a little for a wild ride.
Once backed off to the 431 it is very nice.
Back to the rigger.
I can see some possible solutions.
1. Move CoB back an inch or 2 from the sponson rear
2. Raise the strut to loosen up the front even more.
3. Run at less than wot...............not as much fun though.

Suggestions please.

btw it is really moving now, I would estimate 60 km/h +

[Simon.O.]

I am on the road to getting this sorted.
I commited the cardinal sin of adjustments. I did two at once.
I raised the strut to loosen the front up AND used a 6 pack that I know has less punch.
It was a lot more controlable.
I am now learning to tune this hull for the BL power that I now have.
Lots more time on the pond to come while I get this one stable at speed.

On a similar note I did raise the strut on the Hydro too and the it now wants to blow over, a bit more down and I think I will find the sweet spot.

If my "blog" or diary of developments is proving tiresome or boring please say so, otherwise I will continue to chronicle the developments of my favourite hulls.

[Meniscus]

...If my "blog" or diary of developments is proving tiresome or boring please say so, otherwise I will continue to chronicle the developments of my favourite hulls.

Simon, it is not tiresome. I know that there are several of us that have no problem watching progress in action. Plus I have enjoyed seeing the builds all the way through to running.