Rumdog's Maritimo build

[TotalPackage]

ryan now that u online let me ask you something. Why does it seem your 1515's ran better than anyone elses ive seen so far? Did you find an optimal timing and pwm point? How do they stack against the 1717's why do they cost so much more that the 1717?I have plans for a 56 inch cat what do you think would be the rite motor to push it.I dont want to spend more than 200.00 per motor.

[Rumdog]

In vids that I have posted, I am running 5s per motor on the 1515's. A LOT of RPM. These motors have held up excellently over time using 5s again and again. Guys run these on 6s in cars and trucks consistantly. I use 15 degrees timing on these as suggested for the Y winds. The Castle motor sale was for Items that werent selling too hot for them. Most guys were buying up the 1515/MMM motor esc combo and the 1512 (2650kv) MMM combo for trucks and buggies. Seems they just wanted to clear out the inventory of 1520, 1518, 1717, and 1512 1800kv motors. Prices were MUCH higer on these motors at one point. The 1717 is a HOG! I love that motor. I have had and ran ALL of these Castle motors and they are all excellent in quality and performance. Twin 1717's in a 56" cat would work well.

[Rumdog]

Check out this build by Disar. Twin 1717's. http://forums.offshoreelectrics.com/...ight=disar+cat

[TotalPackage]

All I know is that sprint cat of yours hauls azz im no hater bro I give you your props. Me and my boy watched that video the other day and man that thing tracks like a train; handling second to none on those aeromarines. U need to race that thing.Just looked at that build. Man thats sweet. I wish i could find one of these bad boys with a mold heres the one i plan to build. What do you think?Have you done anything new to you maritimo today?

[ManuelW]

Hello Guys,

hope my posting is accepted as it is not all concerning the Maritimo

@ rearwheelin (have you got a name): The HFK Prototype was my HighSpeed Project for Season 09'. Its a 35" cat with basically the identical step geometry of the Maritimo. But it is wider and has different tunnel and areodynamics. To be fast with this engines the really need 8S Lipo and 2x 8S Lipo in a 35" cat gives a quite nice power/weight ratio. With some special modified ABC 1816/3 it did a 105mph run. Heat was with perfectly balanced boat under absolute perfect conditions. But I think for a Maritimo 2x 8S are just too much. First concerning weight and balance of the boat, second thing is where to fit them? In my boat one 8S pack fits in each sponson.

@ Rumdog: What do you think concerning a SAW boat or what speeds are you planning to achieve? I think the Maritimo is a very nice hull and runs good as well but I don't think as a pure SAW runner its the right choice. IMHO I'd run her max. in the mid 80's. Beside this, which powertrimms do you want to use.

Best regards,
Manuel

PS: Today new test drive with the HPR06 Austrian Build - amazing what can be achieved with a cheap setup when you know what to do ;-D

[rearwheelin]

Hello Guys,

hope my posting is accepted as it is not all concerning the Maritimo

@ rearwheelin (have you got a name): The HFK Prototype was my HighSpeed Project for Season 09'. Its a 35" cat with basically the identical step geometry of the Maritimo. But it is wider and has different tunnel and areodynamics. To be fast with this engines the really need 8S Lipo and 2x 8S Lipo in a 35" cat gives a quite nice power/weight ratio. With some special modified ABC 1816/3 it did a 105mph run. Heat was with perfectly balanced boat under absolute perfect conditions. But I think for a Maritimo 2x 8S are just too much. First concerning weight and balance of the boat, second thing is where to fit them? In my boat one 8S pack fits in each sponson.

@ Rumdog: What do you think concerning a SAW boat or what speeds are you planning to achieve? I think the Maritimo is a very nice hull and runs good as well but I don't think as a pure SAW runner its the right choice. IMHO I'd run her max. in the mid 80's. Beside this, which powertrimms do you want to use.

Best regards,
Manuel

PS: Today new test drive with the HPR06 Austrian Build - amazing what can be achieved with a cheap setup when you know what to do ;-D

Thanks Manuel ,
Randy

[JPriami]

Looking good Rumdog. I like this boat. As if my avatar didnt give that away.
Looking forward to seeing it finished.

[LarrysDrifter]

Come on Ryan,we need some building updates!

[LarrysDrifter]

Hope you didnt give up on your twin,Rum.

[Rumdog]

Nah. Just been dragging my feet. I need to get some mill time in at work to make my rudder bracket, but I've been super busy with work lately. Rigging up a new CNC swiss type lathe right now while trying to setup and run production on 2 others is no fun!

The transom is reinforced, and there are blind nuts for the original bracket (which I don't have). I want to make a bracket to put those blind nuts to use.

[LarrysDrifter]

Sweet. Ill be watching.It would be awsome to make you own parts.

[Rumdog]

Maiden run was Friday. Need to bump the CG up a tad, but it was a rocket as suspected. Went with x 442's for the maiden. Temps were all great. Esc's right at 105, motors around 90 and cells at 110 ish. It was cold out, so was the water. The thru hull pickups seem to work well. Currently tearing down for paint.

[Killer V]

Rumdog's Maritimo build

Rumdog,

I am just finishing up on an Aeromarine Cyclone. I am almost sorry I did not put the twins in like you. I have so much room. You did an awesome job. I think I should have read some more posts before diviving into the build. I can't wait to see the paint work.

I have a great graphics guy out here in New Jersey if you need one.

Killer V

[LarrysDrifter]

Nice job,Ryan. Hope a video is coming.

[old guy]

how did you like the drives
Rick