Genisis...

[viper1]

@viper-why do you think that particular motor is an upgrade?
generally is considered an upgrade a bigger motor with lower rpms so you can increase the size of the prop,
like leopard 40 series or turnigy 500 :http://www.hobbyking.com/hobbyking/s...er_1600KV.html if you really want an outrunner
the smell in the boat is actually the smell of epoxy used in the building process.

Not sure if it is an upgrade, that's why the question mark.

I 'think' it is because;

1) It's a 4-pole motor compared to the 2-pole standard, smoother running and way more efficient,
2) Better quality build and good, constructive (-take note!) reviews from actual users,
3) It can handle 6s with ease without running hot, and the standard one only 4 or 5s.


You expressed your opinion about that motor before Paul.....and I advice to read my reply to that again.
Maybe I end up with a leopard anyway , and maybe not. I like to keep my options open.
Where do you get the idea that I want an outrunner? Although generally more efficient, that advantage will disappear quickly in a boat set-up as you can not cool them as efficient because there is no direct watercooling contact with the windings as with an inrunner. And as you know, efficiency goes out the door quickly with elevated temps....
Funny you advice and link to a motor that is actually smaller than my choice, and less wattage...

Incorrect about the smell in the hull, but yours could be different (although you have the same interior as mine, described above).
I lay up a lot of fiberglass, and this is not epoxy resin used, it's either polyester or vinyl-ester, my best guess is the second.

Your help is very much appreciated, but please be constructive

[paultbg]

@viper- i am sorry that I have a different opinion than yours about what upgrade means; i tried to explain above my point of view very constructive.
also i ask for your opinion and i did not judge your choice; but than again, on your money you can consider whatever motor you want as being upgrade;
for myself, I am to poor to buy cheap things that need replacement soon.
about the smell. you do realize that no one can actually sense that beside you, so we can only guess there...

[viper1]

@ Paul:

It's all good mate ! Let's agree to dis-agree,
Agree about the smell, there could be different versions and production badges, but mine is not epoxy.

stock tube is stainless 5mm inside 6mm outside so i dont think 3/16 will fit even with special thick teflon

Just measured mine as I'm planning to upgrade my shaft as well,
I have the SS original and mine measures 6mm OD x 5.65 ID , not 5mm

A 1/4" brass tube (I have K&S #131 here) measures 1/4" or 6.35mm OD, and 5.67mm ID (a 7/32" 5.56mm fits inside)
The brass tubing has more wall thickness, but I.D. is almost similar.

I understand that competition guys run without teflon liner, given that, I think my different options for 3/16" shaft are:
1) original strut and tube, no teflon liner, change bearings.
2) Change SS tube to brass with exact same dimensions as stock (checked, I have it here) , no teflon liner, change bearings.
hobbyking stocks those tubes:
http://www.hobbyking.com/hobbyking/s...dProduct=12706
(Please ignore the customer comments on HK site about ID, it is 5.65mm , not 5)
More than coincidence I guess: check the packaging, brand looks familiar?
tube.jpg
3) machine out the strut to the 1/4" Dia. , change to 1/4" tubing and use a liner as well.

I have on order complete set 3/16" with liner and tube ,nut and d.dog.
As far as I can see, these are my options?
I left out changing the strut, not necessary as I have a lathe.

Edit:
OOPs I was wrong, last option difficult as tube with liner should come with 9/32 tube.
Need a strut in that case...

[Maciek74]

original liner is 5,32mm, 3/16 liner is 4,80mm so it doesnt fit inside original tube (*!***!***!***!** imperial dimensions!!!)

u can order on OSE replacement strut made for 3/16 http://www.offshoreelectrics.com/pro...prod=ose-80975 as i did or drill original one :)

[viper1]

original liner is 5,32mm, 3/16 liner is 4,80mm so it doesnt fit inside original tube (*!***!***!***!** imperial dimensions!!!)

u can order on OSE replacement strut made for 3/16 http://www.offshoreelectrics.com/pro...prod=ose-80975 as i did or drill original one :)

Thanks Maciek,
I see you ARE getting confused with imperial dimensions, you are mixing up the inner and outer diameters
3/16" = 4.8mm is the shaft size, the outside diameter for the 3/16 liner should be close to 1/4" or 6.35 mm?

You are right that it won't fit in the original tube, correct.

Anyway,
The shaft I have on order is a complete set, 3/16" with liner and tube ,nut and d.dog so that liner should fit in that tube.
Have to get the strut elsewhere, $21.00 shipping for a $14.95 strut? Naah

[Maciek74]

iam right after first tests on new motor (4082 1600, previous 3674 1700) and new shaft for .187 cable without liner, difference is huge, engine and ESC 40deg C, batteries cold and its on x445 prop, after few more tests iam gonna try x447 :)
boat and motor runs smoother, same as acceleration, well greased cable and i have no single water drop inside hull :) great upgrade if u are goin for 3674 motor, dont! :)

Maciek

[paultbg]

My Genesis is doing the Mediterranean Sea...

From time to time my Genesis is deciding that she had enough of the British weather and she need to go in holiday.
This year she decided to go in Greece to the Mediterranean Sea.The weather is very good and she is having some fun.
You can see in the movie below.The only problem is that there are too many people on the beaches so she can sail only (very) early in the morning.
Did I mention that she also spoiled herself with a photo shoot?

DSC01404.jpgDSC01409.jpgDSC01413.jpgDSC01417.jpg

[JonD]

Hi Paul,

Beautiful photos, and lovely sunrise video. Thanks so much.

I'm envious. Is the Mediterranean really that calm? Wow. Perhaps I need to get up earlier and check out my beach as the sun comes up!

What camera did you use?

Cheers,

Jon

[paultbg]

Hello JonD
Well, at least where we are is like this every early morning.
Then, it start to have some small waves until 3-4pm.
From 4pm up yo 7-8 pm there are some decent waves.
After that it is calm again...
For video I've used Hero GoPro mounted with the straight mount (visible in pics)
For pics I've used my travel camera, a Sony Nex 5.
Regards
Paul

[paultbg]

Hello JonD
Well, at least where we are is like this every early morning.
Then, it start to have some small waves until 3-4pm.
From 4pm up yo 7-8 pm there are some decent waves.
After that it is calm again...
For video I've used Hero GoPro mounted with the straight mount (visible in pics)
For pics I've used my travel camera, a Sony Nex 5.
Regards
Paul

[Delta6326]

Hello guys!
I'm new here and I have been wanting to get a RC boat and I really like the looks of the Genesis.
If I get a Genesis hull only what else do i need to get for it? I have been trying to find everything at the OSE shop.

I'm looking at using Turnigy nano-tech 5800mah 2S 30~60C Hardcase Lipo Pack Weight: 296g. I may get 2x them in Parallel. I don't need all out speed I'm looking for 40-50mph burst with more endurance on run times.
Whats a good transmitter shafts, rudder, etc...?
Heres what I'm looking at.

From time to time my Genesis is deciding that she had enough of the British weather and she need to go in holiday.
This year she decided to go in Greece to the Mediterranean Sea.The weather is very good and she is having some fun.
You can see in the movie below.The only problem is that there are too many people on the beaches so she can sail only (very) early in the morning.
Did I mention that she also spoiled herself with a photo shoot?

[ATTACH=CONFIG]83279[/ATTACH][ATTACH=CONFIG]83280[/ATTACH][ATTACH=CONFIG]83281[/ATTACH][ATTACH=CONFIG]83282[/ATTACH]

Great Pics!
What are all your parts your using?
How is your run times?

[1945dave]

Wow, I typed away for about 15 minutes and then went up to use the FE calculator program and lost everything I typed. Crap.

Anyway, I have a couple of remarks about your plan.

First the choice of hardware items selected so far are good. What KV rating does that 4082 motor have? Reason I ask is this. You want to run 2S battery packs two in parallel. That is only 7.4 volts total. You also state that you want to run 40 mph minimum. That won't happen on 2S. There is a link on top of this thread that will take you to the calculator program that I went to and lost everything a few minutes ago and the third interactive calcuator will estimate speeds with a given prop and motor rpm's. In your case or atleast my case my 4082 motor is a 2,000 KV rated motor. Works great in the Genesis. But nothing too special at 2S voltages. With the Octura X442 prop you stated (another good choice, I prefer the M442) Absolute top speed with no slipage loss is 32 mph. With 20 percent slipage (even that is hard to achieve) you would only get 25 mph. Yes, from my experience with the Genesis that is probably a realistic result if running 2S battery packs. By the way why hardpacks? Much heavier and not needed for boats, perhaps cars and trucks but not too common for boats. On the other hand they will work just fine. My recommendation is to go ahead and use two such batteriy setups in SERIES not Parallel and you should achieve your goal of speed. For any occasion you want to run slower but for longer periods of time, don't expect 40 mph it won't happen.

Also, double check your Carbon Heavy Duty motor mount. I am concerned it will not allow the 4082 and longer cooling jacket (68 mm) to fit. You can always use a shorter cooling jacket or order a longer motor mount. The fixed spacing for the two mounting rings, I believe, are too close together to fit the longer jacket. Just a heads up.

To round out your items needed at this point, you will require a radio and reciever, one standard size servo, one strut and rudder assembly, one flex drive setup (3/16th preferred), and one 5 mm to .187 (3/16th) motor collet. All items available right here on OSE. I am not sure about the radio to suggest but for sure you want a 2.4 ghz radio, 2 channels will do.

Good luck

Dave

[Delta6326]

Thank you for your great info!

I was looking at the 1600KV, I was saying 40-50MPH Max I'm not one for speed maybe later in the future, but not for now.
I chose those battery's as I really like the way they connect and i was checking they only way a few more grams about 18g than a non hard case of same size.
I will look into the motor mount.

Is this a good strut and rudder system to buy? http://www.offshoreelectrics.com/pro...prod=ose-80085

I'm looking at the 2075 Traxxas Servo Digital High Torque Waterproof and spectrum MR200 receiver

[1945dave]

Thank you for your great info!

I was looking at the 1600KV, I was saying 40-50MPH Max I'm not one for speed maybe later in the future, but not for now.
I chose those battery's as I really like the way they connect and i was checking they only way a few more grams about 18g than a non hard case of same size.
I will look into the motor mount.[/IMG]

Okat Delta I get the max speed comment. Let me ask you a few questions. To me 40 to 50 max is pretty far removed from 15 to 20 actual. Do you want some help trying to pick a motor KV choice? Quickly this is the basic guideline. For everyday running and not world record straight away racing you try to pick a motor that will give you about 25,000 rpm's on the battery power you intend to use. LIPO batteries put out 3.7 volts per cell (1S) hence 2S is 7.4 volts. The very stock Genesis amost ready to run comes with a 2,075 kv 3674 mm motor and the manufacturer recommends 3S to 4S batteries. Your selection for a motor is a much more powereful motor in size (4082mm) and the KV rating of 1,600 is better suited for nothing less than 4S and more likely 6S. Because your battery selection lends itself to both 2S in parallel and 4S in series I would suggest you look for something in the 2,000 kv range. maybe even 2,200. Just a suggestion. Also your selection of items are more expensive than what you need all the way arround. good choices with the ability to grow however.

The servo you selected is a wonderful high speed and higher power servo than what is needed for the Genesis. It also will cost twice what you really need to spend. If someone is giving you advice thats okay but on this forum we see try to be able to offer good smart recommendations and consider the pocket book as well.

Click on my name above and send me a PM (personal message email) and give me a phone number and I can call you to help with some of your choices.

Dave

[Delta6326]

Thank you for the info i may just get the Genesis almost ready to run version and then try that and slowly upgrade as i get more experience.

So far your the only one giving me advice thank you. I was hopping to build a boat around the price as the Traxxas Spartan while being able to out due it. so around $440


If you have some spare time and if you wanted you could list the parts that you would get to finish off the build.

But i should also say I do not plan on doing this anytime soon it would be a project for late winter.