Maiden videos of RC Wind surfing and RC Surfer...
http://www.youtube.com/watch?v=YN8_lTv6ISA&feature=plcp

http://www.youtube.com/watch?v=6JeS3rdzs78&feature=plcp

while testing this surfer it was almost night... sorry for the video quality.

Welcome Back Maharana!
Good to see you back in action! Nice build!

What is the material that is used to make the board.
Shreekant

sir that surfing boat is one peice of beauty.
really cool.
and the dummy blue surfer looks really nice.
congrats on this.

thanks Sreekant & Sahil.
The board is made of fiberglass (two piece molding) and came up nicely, no water leakage etc... the surfer is keeping / tilting to right on higher speed, need some counter weight to left and in the wind surfer the size of centre board has to be increased. will update the results soon.

the next couple of builds ( RC Kayak and RC Rowboat) are in progress......

Wow.. nice machine Maharana sir.. was waiting for the action videos.. 

it appears that you are using the same dummy.
really nice.

The mechanism of rowboat or kayak is very simple when the boat is steered with rudder, but without rudder both the mechanism gets complicated.

I have seen some youtube videos where the rowboat is controlled by 4 servos and programming, but I trying something simpler mechanism where oars can be synchronized automatically after disengaging any one of the oars ( I mean oars should hit the water at the same time after each successive turn)


And in the case of sailing the kayak the figurine should oscillate while kayaking and bends more while taking tune to the opposite side.

Very nice, sir. This video shows 2 servos? One for each oar?

Sanjay bhai, there are 4, 2 for reciprocating and 2 for lifting oars.

and this very interesting & great video... rc canoes in action
http://www.rcmovie.de/view_video.php?viewkey=1cca999f55a43db2ce04

OK. At first I saw only the reciprocating!

The canoe is very, very good! 

I am making couple of rowing mechanism. One with locking type mechanism and the second one where oars can be lifted out of water. This page was quite helpful building the 2nd one.
http://www.modelboatmayhem.co.uk/forum/index.php/topic,2604.0.html

Here is the video:
http://www.youtube.com/watch?v=BXe-I-c0L7A&feature=c4-overview&list=UUBufh08NklV3HmY48BOve1g

Very nice. Now put it on a boat

that windsurf is amazing! 

what will be even awesom-er is if you can build a sailboat or windsurf, where a weighted keel is not required. maybe a weighted figurine made, hooked up to a gyro, so the more the boat heels, the more the figure will lean outwards... tacking it will just get one step more challenging

Brilliant Maharana..This is a marvelous piece of Engineering.
Superb!!!!!!!

Shreekant

Thanks Sanjay bhai, Sreekant,

Fixing the mechanism inside the boat is also a big challenge  
weight, size of the boat, waterline etc; all counts.


@Aniket
Even if you control the movement of the figurine by Gyro-Servo, the keel/centre board can't be eliminated.(Which transfers the wind force to forward motion) and in the case of Wind Surfer a moving Figurine will obstruct the movement of main sail.  

This is nice animation of Sailboat:

@sb maharana sir, the keel(or centerboard for windsurfs) is mainly there to direct the energy accumulated from the wind so the boat moves forward and doesn't drift. in a real windsurf, the boat heels, and the sailor hikes to counter the heeling. the weighted keel system is usually used for large yachts where a human cannot hike.
the downside of a weighted keel system is the inherent drag caused by the weight, and the extra weight itself. if instead one could setup a 180 deg servo, which swings a weight around, it can simulate the hiking system of a real boat, which would not only reduce the weight required, but also allow the boat to sail faster, and utilize the minute winds it collects in its sails better...
i dont know how feasible it is, but i think if possible, it will be a pretty solid system..

in the case of a windsurf, instead of a figurine, you put a swinging weight system at an angle.  so the weight, at the end of the swing, will heel the board just enough to allow it to plane..

regards
aniket

I think you are looking something like this:
http://robroy.dyndns.info/RCmodels/A600/overview.php

video of the same

aaah! yeah!! thats exactly what i was talking about! that yacht is quite like a laser....

So far so good, made a boat with sunboard, the size is 14x4.5 inch & weight is approx. 650 gms., (it should be around 450 gms.). Tested the boat, oars are quite ineffective. Planning to replace the geared motor with a lighter one and slightly modify the shape of the hull for a better positioning of the oars.

supposing you increased the size of the paddle?

Sent from a potato using a lamp

All the best! What is the finished product going to look like? What design do you have in mind? This mechanism is an ingenious piece of work and I am sure you will hone it to perfection.

Maharana !! Good Show !

i expected Turuk Makto riding the Last Shadow

Thank you Sirs.....

Due to overweight the boat is keeping too deep into water, and limiting the external length of the oars. The external length of oars should be 3 times bigger than the internal, which means the paddles should moves 3 times bigger than the internal mechanism. I have two options left (1) increase the height of the boat (2) reduce the weight so that waterline match the actual.

Could you change the angle of the oars? Make it a shallower angle?