Build log: Star 45

Other Scale Sailing
1

Hello all!
I am building my first radio controlled sailboat. My choose is STAR 45. Few photos of building the hull:

Gluing the keel :wink: :

I have just finished the hull :smiley: :

I wonder what material use to do the hull sheathing. Iā€™m thinking about the birch plywood, but donā€™t know what thickness. Can you advise me?
I have one more question: Can I use braided fishing line for sail rigging?
BTW.: I have bought servos: HiTec HS-785HB for sail winch & HiTec HS-765HB for rudder.
Now I just have to choose RC transmitter & receiver.
Please, answer ASAP.
Thank you in advance :smiley:

2

looks nice. thats a lot of clothsepinsā€¦ :slight_smile:

I would recommend using braiding fishing wire.ā€¦ I use 60lb on all my boats. something like thisā€¦
http://www.berkley-fishing.com/BerkleyĀ®-SevalonĀ®-Nylon-Coated-Wire/1104395,default,pd.html?gclid=CLTgh_zbhb0CFaVxOgodMQwAvw

the only down side is that you need to use crimping sleeves. not as easy as a knot, but a lot less stretch and IMO wire is more durable than the string braids. the string is finen for the sheets and such.

I woudl reccomend a ditigal TX. I like the spektrum DX6i, but the new chinese copy orange form hobby king is pretty new and delightfully cheapā€¦ I havenot tried it yet but I will likely get one as a backupā€¦

3

Thank you for quick answer :smiley:
I know that the Spektrum transmitters are very good for sailing models, but I was wondering about the Graupner MX-10 HOTT 5ch 2,4GHz & GR-12 receiver. What do you think about it?

4

i donā€™t know anything about the gaupnerā€¦
here is the link to the orange unitā€¦
https://www.hobbyking.com/hobbyking/store/_39701__OrangeRx_T_SIX_2_4GHz_DSM2_6CH_Programmable_Transmitter_w_10_Model_Memory_Mode_2_US_Warehouse.html

5

Thank you :wink:
ā€¦ but there is no warranty for Orange transmitter. Spektrum DX6i has got 1 year warranty. BTW. Do you know anything about the range of this transmitter from HobbyKing or original DX6i?

6

Iā€™ve never had any control issues with the dx6i been able to sail as far as I can reliably see the boat and tell whats its doingā€¦ 100 yards easyā€¦

mount the RX above the waterlineā€¦

for the price of the DX you could buy two oranges.

Electronics warranty have never been anything I generally worry about. but i will say that there are a lot of good comments on spektrum and their warranty service.

7

HI Marc, read your post on the orange, was tempted by one myself - how long have you been using them ?

8

I picked up the orange tx this winter. Nice radio easy to set up, great price. Got the RG , Vic ODOM and soling set up. Only sailed the RG so far this year. So far it is a winner for me.
Craig

9

i donā€™t have one yet. currently they are barck ordered in all warehouses. I have been happy with the spektrum. but sicne I sold my EC12 I let the radio go with the boat. so I have no ā€œback upā€ I have never purchased a new spektrum. always got them used for around 100 bucksā€¦ but the orange looks like a great dealā€¦

10

Hey!
I have decided to use birch plywood for a hull sheathing. For bottom planking 0.8mm, for side & deck - 1.5mm. I have bought them already, and they will be deliver tomorrow.
Finally, the servos were delivered few minutes ago ;D

Do you know where can I buy pulleys like this ? Or this ?
I donā€™t mind if it wil be used or new. Thank you in advance :smiley:

11

I have decided to use birch plywood for a hull sheathing. For bottom planking 0.8mm, for side & deck - 1.5mm. I have bought them already, and they will be deliver tomorrow.
Finally, the servos were delivered few minutes ago ;D

12

Sailsect, out of the UK is one place
http://sailsetc.com/magento/index.php/products-by-category/fittings/blocks.html
Capmaquets form france is another.
http://www.cap-maquettes.com/contents/en-uk/d1062_maquette_accastillage_voile.html
Pekabe on ebay is another
http://www.ebay.com/sch/i.html?_trksid=p2050601.m570.l1313.TR0.TRC0.H0.Xpekabe&_nkw=pekabe&_sacat=0&_from=R40
midwest model yachts
http://www.midwestmodelyachting.com/Blocks.asp

13

Thank you very much :smiley:

14

Can you explain me step by step how to do the glass layout? What grammage of fiberglass?

15

on my IOM I used 3 layers. one of 5-6 ounce, one layer of 1 ounce, and one layer of 1/2 ounce with no gelcoat over a male mold that hasbeen protected by packing tape or some other mold release product.

I would imagine that if you went with a gelcoat layer you could skip the layer of 1/2 ounceā€¦

16

I want to cover the hull with fibreglass not make mold. I want to use fiberglass for reinforcement & better waterproof and I want it transparent.
Something like this:

17

Ah. that probably 1 oz or maybe two layers of 1/2 ounce. 1/2 ounce is very very fine. and will sand out very nice.

I would have opted to do do it in one piece. rather than a piece of glass for each panel. the 1/2 ounce glass is very flexible and very pliable and woudl easily make those hard corners.

18

Can I use woven roving (0.88 oz) instead of fiberglass?
http://www.amcsupplies.com.au/index.php?main_page=product_info&cPath=8_166_836&products_id=1731
And what resin shall I use?

19

I guess you could use any fabric you wantā€¦Iā€™ve only used carbon and fiberglass

I use the west system of epoxiesā€¦

20

I have a problem with buying birch plywood for planking bottom hull (I need the plywood with lengthwise growth rings, but I can only buy with crosswise growth rings) :sad:
Thatā€™s why I decided to plank bottom hull with wooden strips (side & deck will be plank with plywood) but I donā€™t know what wood should I use. I want to glass all surfaces after planking. Like this:

This bottom hull is planked with spruce and mahogany, but I want to use only one type of wood.
I heard that wooden strips of spruce, fir & mahogany are very good for planking hull. What do you think? :confused: