Victor222444

Hi there. I have recently started a project about 3 weeks ago. Its a scratch build Riva Aquarama. I have already finished most of the hull and only need to do the top but I can't do that until I have the electronics. I need suggestions on what electronics to use because
1) the electronics need to be small because I don't want anything to be seen since I am very picky about details
2)I can't seem to find small electronics for the size im making the boat as and
3) I have never built an rc before. This is my first attempt so I don't really know what I need to use in order to make my model run.
The basic functions that I want are 2 motors for propelling power and 1 servo for the rudder controls. I don't know what to connect those to so any help?

canabus

Hi Victor
Check out Hobbyking.
Motors the small TR-2217-1050kv on 3S(11.1volt) batteries will give you about 11655rpm with props around 35mm x 1.4 pitch (2 or 3 bladed).
Battery you may go for a single 3300mah or two 2000mah(check out the size of the batteries for you boat).
ESC (speed controller) 35Amp with reverse(I use the car ones).
Radio 6 channel Turnigy with the IA6B receiver(you can add voltage/temp and optical rpm sensors).
The Turnigy 6 channel can reverse the servo direction and have up to 20 models on the one transmitter.
Rudder servo TGY-S3317M( 3kg torque).
What is the length of the boat and width, also the total weight?
I check out you boat on the net, very nice 1962 power boat.
The TR-2217 motors can size is diameter 28mm length of can 28mm shaft 3.175mm.
One of our club members has 3 in his unfinished PT boat(length 40 inches) with 3 bladed 35mm props.

coriolan

Victor222444

The kind of electronic to use will depend on the size of the hull, if less than 30" it might be difficult with a twin props set-up to find space for everything and keep the balance depending of were the battery has to go. You will need easy access at least to replace battery and mechanical adjustments. The Riva Aquarama was a really nice boat and deserve to be Donne right, saw the real thing in Europe years ago and also scale r/c models.

coriolan

victor222444
I found that on another forum(this one is relatively large)but there is pictures of the installation and some videos of it running in very scale like manner!
http://www.modelboatmayhem.co.uk/for...833379fadbf720
http://youtu.be/9MVdxpuU0K0
http://youtu.be/Bm_7vzyg5zg
http://youtu.be/xvPYDJyFITA
He's using brushless motor and probably has reversible esc. Another thread of interest:
http://www.rcgroups.com/forums/showt...=Riva+Aquarama

Victor222444

Hi Canabus
The length of my boat is roughly 17-18 inches and at its widest point, a little less than 5 inches so yes. It's pretty small. As for the weight i'm a bit unsure of since I don't have a scale to use but for reference, it weighs about 12 sheets of standard printing paper. But like you see in the picture, it doesn't have the top of the hull or the details yet. Also i'm still looking for another propellor. 35mm diameter is a bit too big.

Victor222444

Don't underestimate my mechanical skills lol. I've built a robot before and have come up with solutions to problems that nobody has thought of in the tournament that made getting the the electronic components easier. The boat is about 17 inches but with the stuff that Canabus has told me, I figured out the general layout of where to put things if I were to use his setup.

coriolan

For a boat that size your might want to do some reading here regarding suitable equipment: http://www.rcgroups.com/micro-and-sub-micro-boats-696/

MilesDeep

Love that boat. How do you get the ribs and keel parts when scratch building?