Blog active again, a.k.a. July update

So i have been away for some time.

No real reason for that.

Mostly, i have been driving cars and developing my own parts, for drifting/performance.

I've repaired some cars, crashed some and i am not nearly done, driving&experimenting, having fun&crashing..

..but i haven't left the rc sailing hobby.

All along i have been sailing evolution and for the last month or two fila 89, with mostly evolution guts(rigg,keel,rudders). Fila 89 is fast, not much faster than evolution, but handles better, gets up to speed faster. It will be raced in the end of august in the model olympics. Trying to take all the top spots from the get go.
So far in the F5g sailing season i have been doing great. Not sure if the boat(evolution) is  fast or my sailing is that good :D.
Videos of races follow on yt.
Posts on fila 89 follow.
A super narrow f5g boat follows.

The Jif got it's fair share of sailing too. Rg's are funny as hell, 270g of ballast on a 44cm ultra thin bendy keelfin and a full sailarea 90cm tall rigg make for a boat that is capable of carrying the same rigg up to 15knots, gusting to 20.
Damn that v botom can plan downwind. Not sure if it is actual plnning but is exceeds the hull speed for sure.
Project angeldust got dropped after a desk lamp heated the 3d printed plug so it got deformed.
A post on jif follows.

Footys have been down tho. I made it to the goldcup in Germany, but with prototypes of questionable speed. With noone to compare to, and not as much fun as the faster rg65 and f5g i won't sail footys often in the near future. The goldcup result confirms that.
Footys didn't grow roots in Slovenia, despite me bringing the footys to every rc event i went, giving them and lendind them to anyone interested.
Only two Karo replicas were built, but they weren't really race capable.(yet)
Now i am to busy&have other interests to actively promote footys here in slo. But footys are still great boats, and i will, maybe, take part in future goldcups with a borrowed boat(ICE would be nice, or a Slim perhaps..)

Rc-sailing.net, i have been following the forum for years, before i made my own blog, before i've built my first footy.
Now everytime i try to enter it a vbulletin message appers: "Sorry. The administrator has banned your IP address. To contact the administrator click here"   ...i have written (clicked) messages to the admin. But with no reply, not sure why all the devices i use got banned, And i don't think i've done something wrong according to forum rules.
I have yet to try other contacts to reach the admin.
If anyone has any info on the subject please contact me.
From time to time an interesting topic does pop up in the forum, and i would like to be a part of it, or at least read it.


And that would conclude the "july update".

November update

December is going to be busy!
The way i like it, i hope school won't stand in the way too much.
3 projects are active all to be finished till the end of January.

My father and I decided to take part in the 2015 footy gold cup. More info will be soon avilvable on a dedicated site. For now Thomas(the german footy registrar) is keeping some of us updated on: http://www.footy-sailing.com/forum/showthread.php?tid=308

Footy first:

This is Booyah, my 2015 footy design. It already is the first(known/proove me it isn't) 3D printed footy. Photos follow.
The design is placed into the box longitudinally nose down.
giving it a max lwl of 33cm.
The all up weight should be 450g
But the 3d printed prototype won't be as light. After testing and improovement the boats will be made of composite, to save weight.
The hull has a high prismatic coeff. and plenty of reserve volume. It will carry a classic rigg. The A_rigg will exceed 2000sqcm.

Then come the rg65s,
Some sailors here in Slovenia decided to start building them. 2goths, one own design and two other are looking for boats.(that makes 8, counting the dragonforce seen on regatas, me and father)
It looks like rg65 is going to be the new class here in slovenia.
So i picked up my left behind projects..
the jif65:

which only needs a bulb, and a paint job(to cover porosion)

and the angeldust rg..

..it is a 9/2012 design, designed to be nothing special, following the common rules of thumb know in naval architecture. Only the rigg will be somewhat special.
It is intended to be an allround boat, and a rigg testing platform.
I already made a plug and a hull for it, but it is twisted, so i wont use it. The past two days were spent drawing the sucker in solidworks, refining the rigg and bow sections. Today i have the files ready to start 3d printing the new plug.
It will be hopefully printed by sunday, so i can glue the parts and get the plug ready for moulding.


There is also the new fila which has to be finished till late may. To startthe national championship season.


The battle plan is to get the angeldustplug printed asap.
To finish the footy in the next 14days and trial it against Karo.  -then analyse & improove
The jif should be done till new year.
Angeldust should be done till end of january, to test agaist jif and hopefully other rgs.

jif update

the jif 65 is comming along nicely the deck was glued on and the hull was laminated.

ready for deck and lamination

the aft par of deck structure

the deck was glued on with thick CA glue, it is a 2x 80 g7m2 glass laminate

the hull was laminated with 1x 50g/m2 + 2x 20g/m2 glass and is now sanded awaiting 2k paint

i am not happy with the weight increase, 72g is what 3layers of wood varnish on the inside, the deck and the lamination have brought so far.

the deck looks like this, the two holes in the back are as by plan, the forward ones will provide acees for gluing the shrouds and the fore stay to the bottom of the boat and for adjusment of the mast post( a 5% variation of CE is posible. with blocks the mast can be mowed forward and backward, rake wil be adjusted up to 5 degrees backwards)

Now the mission is to build a thin(3mm thick) finn and a rudder.
After that two riggs will be build a swing and a classic.

Jif 65 build

Because i have no will to continiue with the angeldust rg65, i decided to build myself a jif65 wich will be equipped with my design rigg, and will be used for comparison to new designs.
The jif65 is a classic rg65, ment for easy building, but results from some regattas show that it can perform if executed well.
The hull seems to have a low prismatic coefficient, a relatively deep v and is quite beamy for a canoe style boat.

planks are 2mm balsa, bulkheads are 3mm balsa as suggested by the plans

Todays progress was good, managed to get all the templates cut out, and build the hull.
The front two bulkheads also have holes cut in them to save weight. The hull with no servos now weighs 76g which is ok according to some build logs on the web.

Not sure why this pic is downside up, but here are the servos. Fresh from hobby king this servo ripps pants with only 60g of weight and lots of torque. the rudder servo is a corona something 9g servo for rudder. The servos are set on a (50g carbon/1mm balsa/ 50g carbon) sandwich wich is supported in the middle and weighs a mere 7g, the finn box has a 3mm wide slot and is made of the same sandwich, the green stuff is some very stiff foam found in baumax.
That's it for now, by the weekend i hope to have the hull glassed and the deck bonded.