Dual/Twin Drive Delta Force 33 (2x540L)

[mschaffer66]

What kind of top speed are you figuring now? I think after reading this I'm going to give my Twin Titan a chance :)

[Jacked1]

I have an idea for a twin motor boat to one outdrive. It would have two outrunners with replaceable shafts and you could just put them both on one longer shaft back to back and use a huge prop. Has anyone heard of that before? I think it would be a nice way to save some money on large scale boats. I am for sure going to try it out next season or if my gear drive doesn't work out on my big boat.

[mschaffer66]

I have an idea for a twin motor boat to one outdrive. It would have two outrunners with replaceable shafts and you could just put them both on one longer shaft back to back and use a huge prop. Has anyone heard of that before? I think it would be a nice way to save some money on large scale boats. I am for sure going to try it out next season or if my gear drive doesn't work out on my big boat.

I have been told, not sure if this is accurate or not, that brushless motors can't run to the same spur gear, or output shaft or whatever because of them binding or something.

I was never that interested in doing one to really check out the validity of that or not.

Must be some truth to it otherwise it seems like you would see twin brushless RC cars...

[Jacked1]

Yea i am worried about that. another alternative i might do right off the bat is have the motors inline and connect them threw the gear hubs and have a gear right in the middle of the hubs so they would always have to run at the same speed.

[obrien008]

Are you running in Lake Erie? You have some guts!

Hah I am actually, and ya its really hard on the boat, tons of hard roll overs, plus this boat is a dart and likes to nose dive once in a while, so I had to rebuild the nose, but I designed this boat for Lake Erie cause im up there all the time, thats the main reason for the twins, plus I wanted to do something a bit different.

What kind of top speed are you figuring now? I think after reading this I'm going to give my Twin Titan a chance :)

Got a GPS of 49 which isnt that great but its heavy as hell for a 33, and its only got 1 battery. I bet a 41 or 45" with 540XLs on 6s would easily get 60, im wishing I woulda spent a little more money for the bigger setup but owell.

I have an idea for a twin motor boat to one outdrive. It would have two outrunners with replaceable shafts and you could just put them both on one longer shaft back to back and use a huge prop. Has anyone heard of that before? I think it would be a nice way to save some money on large scale boats. I am for sure going to try it out next season or if my gear drive doesn't work out on my big boat.

That would be cool, I saw a Huge twin HPR cat with 4 monster lenher motors 2 in each sponson inline with the shafts together, prob around $10,000 setup. Sick boat but it burned and I mean burned within the first 30 seconds of the video. I was thinking that the motors probably werent perfectly in sync which may have been why I didnt work, so be careful.

[AlanN]

Well, I know my friend Howard already pm'd you but if you ever want to try a smaller pond give us a call...pm me or Howard. We live around the Cleveland area.

[Brushless55]

I've seen 4 motors running into one shaft to spin a big prop on a 50cc gas size plane
but now they have motors that can put out the power of a 50cc that only one is needed now

[Jacked1]

That would be cool, I saw a Huge twin HPR cat with 4 monster lenher motors 2 in each sponson inline with the shafts together, prob around $10,000 setup. Sick boat but it burned and I mean burned within the first 30 seconds of the video. I was thinking that the motors probably werent perfectly in sync which may have been why I didnt work, so be careful.

I was thinking the same thing with big heli outrunners in a 40-45 inch cat!

You could really put some huge props on it like 60mm+ running at 32000 rpm which would be over 100mph prop speed unloaded. Get 2 x 6s 5000mah 45c-90c packs. Have one pack run each set of motors and 4 100amp cheepo escs. You would only have about 250 bucks in the motors and escs and be getting close to 9kw. Or you could get 200amp escs and scopions and really go nuts!

I daydream a lot about my dream boats and what i will do when i am out of college!

Oh and the reason i was thinking the 30 buck outrunners is they are only 30 bucks! hehe

Edit: I found some emaxxs with almost identical setups to my big twin mono i am building so i feel better now!

[obrien008]

I daydream a lot about my dream boats and what i will do when i am out of college!

!

Ha I feel you there, I might actually be able to get my hands on some neu motors, its pretty hard to build a FE on a college budget

[Jacked1]

Ha I feel you there, I might actually be able to get my hands on some neu motors, its pretty hard to build a FE on a college budget

It sure is!!! And i only have enough time in the summers and half the parts come from hong kong and take forever to get here so time is very limited too!

[Ralf]

direct coupling is a way.
i coupled two Lehner 3040 in my mono for testing and SAW09. No problems. Oh, wrong, one problem: handle the power :)
high GPS-measurements but problems get her fine through the traps


Ralf

[Jacked1]

Sweet! I am thinking i will make an outrigger with two or three inline or a two in each sponson of the hull in a cat for next year!