Dual Drive Head Of The River Catamaran

[KillerDave]

I have just found out that TFL are going to be offering the HOR32 cat with a dual 540 set-up...
ARTR or ready to run?????
Well don't that just bite the building fun right out!

[785boats]

Dave.
The other problem I've encountered with the square drive cable is that the socket in the stub shaft splits at the corners & the flex just spins in it. I've replaced 3 stubs before I soldered the shaft into the socket. No problem now. But removing the shaft out through the boat is still a pain.
It can be removed without removing the motor if the stuffing tube stops short enough to allow you to slide the Hex Flex coupler off the motor shaft & take it off the flex. Then bend the flex up to slide it out past the motor. Works for me.

[domwilson]

I have just found out that TFL are going to be offering the HOR32 cat with a dual 540 set-up...
ARTR or ready to run?????
Well don't that just bite the building fun right out!

Who is TFL?

[KillerDave]

<a onMouseOver="javascript:window.status='who is';return true;" onMouseOut="javascript:window.status='';return true;" href="http://elephantine.info/?v=4%2E03&ss=who+is">Who is</a> TFL?

I think they are the main distributor if not the manufacturer.... The strut that cane with my HOR32 had TFL Hobbies etched onto it....

http://www.tflhobby.com/en/index_en.htm

The UK distributor told me that they are thinking of releasing a dual 540 kit for this boat, They call it Apparition and it comes RTR with either a single 540 3660KV motor 125A ESC or TWO 380 2858kv motors 70A ESC.

The website states upto 100Kmh for the dual drive. I think it could be a good starting point for uprating later....

I have been trying to work out my own set-up but I'm struggling with it....
My wife wants to get the parts for my Chistmas gift???? I'm gonna have to do some thinking!!!!

[lomdel]

Any suggestions of a easy to make or buy motor mount for a twin 540 set-up?

[KillerDave]

Any suggestions of a easy to make or buy motor mount for a twin 540 set-up?

If I do it, I will make a plate/bulkhead to fit into the sponson, the motor will mount directly to this....

[NitroVal]

Steven sells some cheap aluminum mounts that I used on my EKOS when I did the 540 swap. http://www.offshoreelectrics.com/pro...od=ose-drmount
They are nothing special, but they were easy to trim to fit inside the hull

[bustitup]

Any suggestions of a easy to make or buy motor mount for a twin 540 set-up?

here is the best choice...they are cheap and easy to mount the motor


http://cgi.ebay.com/Aluminum-motor-m...item45ee343885

[tomstoys2]

Hey KillerDave,
I saw the twin HOR32. I wonder what pricing will be at.


I'm going to be building a twin drive this winter as well. Just received my MHZ 840mm(33") Mystic hull. I have been struggling as well with what motors to use. Based on the size of this hull, battery placement will be tricky. I'm not looking to build a record breaker. Not going to race it, just for fun and show. A lot of the time I won't have perfectly calm conditions. I would like to run 2-4s each but I don't know if 2s each is possible. Based on some recommendations, I am leaning towards twin 540L 11L or 12L motors. Remommendation was to go with low rpm motor and use larger props. Counter rotating porp selections are limited.

I was thinking Etti 150 Navy's. Better to go overkill with the ESC's right? I was also concidering the Seaking 180A's but I'm not sure if it's worth it to save $100 at this point. I figured I could always upgrade motors. Most of these items will be Christmas gifts as well.
I'd like to run 2s's for each sometimes but I don't know if that's going to pull to many amps.
I'll post some pictures of the hull this week. I love the lines of the Mystic.
Went with the MHZ outdrives as well. I parted with a lot of toys to save up for this.
Have you thought of how you plan on securing the flex drives to the hull?
I look forward to following our builds.
I guess it might be time to start another twin build thread!

[KillerDave]

Tomtoys2,

Doing the engineering on all of this is no problem but, what I am going to have trouble with is the componants like motors, ecs's and batteries..... I think my set-up will be workable and I'm sure it will have room for improvement too.

I kinda had a though today that IF I did go for the dualdrive set on e-bay it would get the boat back out on the water and it should be fun to a point, I know my son would love it too.

After tat is done and running about, I think I will start fresh with a new hull altogether and build the twin 540 monster! I would like to stick with the HOTR but there are a few out there.... Let me know if you do start a new thread....

[tiqueman]

Found this a while back... http://www.radiocontrolledstuff.net/...products_id=42

[lomdel]

Hey KillerDave,
I saw the twin HOR32. I wonder what pricing will be at...

Where did you see the twin HOR32? Please post link and update if any...

[tiqueman]

Found this a while back... http://www.radiocontrolledstuff.net/...products_id=42

Hmm, that link worked when I posted it. I found this one this morning. Im thinking its the same hull... just not directly from HOTR

http://www.sdshobby.com/apparition-brushless-boat%EF%BC%88Twin-motor%EF%BC%89-p-290.html

[tomstoys2]

Yes, that link did work a few week ago or so.

[KillerDave]

Ok... I know I have put posts on another thread about this but it should remain on here! Sorry guys...
So, I have built my twin 380L HOR 32 and Oh My Word! It is so slow!
I just got a prop speed reading and it's like 1/10th of what it shoud be...
So, I looked at the Instructions for programming the ESC's and guess what... I have the 70A version and it starts at 4s! and I was running it on 3S's.... How dumb do I feel???
So, my question is this....
The motors I am running are FSD 380L's 2881KV and if I run 4S, they will be running at like 41486RPMs, Can they take that? Can I just limit my throttle???? to say 35,000RPM