MMP Rapid ... first build

[PF3X]

Hello,

I just wanted to share the start of my MMP Rapid fom RocketCity, very good seller by the way :) ... It will be my first build.

The hardware is :
- MHZ mini rudder
- speedmaster stinger 3/16
- and of course all the small parts.

For the setup :
- Seaking 180
- Leopard 4082 1600kv
- 6S
- x642

Any help will be appreciated

IMG_0565.jpg IMG_0566.jpg IMG_0567.jpg

[Remmie81]

Nice looking hull!

How did you come up with the Setup?

It looks to me you end up with low rpm.
3S x 3.7Volt = 11,1 Volt
11,1 Volt x 1600Kv = 17760 Rpm

I think you would like to have around 30.000Rpm so then you need 5S

[iamandrew]

i was going to put a 5682 in mine but its waay to big, need a 4082 nows!

[Alfa Spirit]

No, 2x3S serial = 22,2V , around 35000rpm unload, This is the right setup for the Rapid/Racemaster

[Remmie81]

A serial, I thouhgt it was going to be parallel. If its serial it should be ok and hauling!

[Alfa Spirit]

Talking about motors, the FEIGAO 580L/8 1649kV and the Castle Creations 1717 1580kV are very cool for the Rapid

[ozzie-crawl]

He does say 3s2p. mite be a typo.

Nice looking hull.

[PF3X]

Yes it's 2 x 3s in serie :)

[MarkF]

Serial is something you eat for breakfast. Series is double the voltage.

Mark

[Rumdog]

The Feigao 580's are trash. Don't try one.

[runzwithsizorz]

The Feigao 580's are trash. Don't try one.

Care to explain why? It just so happens I have an L6 I'm about to try in a new build. A motor I bought here quite a while back when Steven, and others touted them.
Are there better motors, OF COARSE! but why the hate?? And before you answer, yes I did upgrade the bearings.

[Make-a-Wake]

I wouldnt spend the $$ on a 580L either, i had one once, it was decent but its a 2 poler that runs a bit warm.................I imagine the bearings are a bit behind newer ones too, plus the whole market of 4 polers are not that expensive.

PF3X, i just finished a Racemaster, went with a 1717 on 6s runs well and doesnt heat up much. I use a swordfish 200a ESC, I think they are better than T180's which tend to go into premature LVC.

[Rumdog]

They were junk motors. That's why the hate. I smoked one on it's second run. Got a replacement. That one smoked also. That is the reason OSE doesn't carry them any longer. They were crappy motors.
Try it all you want, but be wary. It can take out you esc as well when it smokes.

[PF3X]

PF3X, i just finished a Racemaster, went with a 1717 on 6s runs well and doesnt heat up much. I use a swordfish 200a ESC, I think they are better than T180's which tend to go into premature LVC.

I saw you thread on the french forum ... I'm also French
I got the T180 for free, so I don't mind.

Ok then today, I was really busy, I just drillet the holes for all the hardwares.

IMG_0568.jpg

Maybe tomorrow I will start the inside.

[Make-a-Wake]

I saw you thread on the french forum ... I'm also French
I got the T180 for free, so I don't mind.

Ok then today, I was really busy, I just drillet the holes for all the hardwares.

[ATTACH=CONFIG]76098[/ATTACH]

Maybe tomorrow I will start the inside.

Hmmm, I never posted on a French forum................not French either.........from the US.

But I will be watching this build to see how others set them up.................Good Luck!!