Hydro&Marine MissUS

[mikesf]

Just received it.



This will be my first hydro scratch build and I am looking for some basic guidelines before I start drilling... Anyone that can help, I appreciate it...

Hull data: 23" long 10" wide, I am thinking to use a NEU 1115 1.5D with a .130 flex, would that be adequate?

Thanks in advance...

[m4a1usr]

Originally Posted by mikesf

Hull data: 23" long 10" wide, I am thinking to use a NEU 1115 1.5D with a .130 flex, would that be adequate?

Thanks in advance...

Wouldnt be my choice of motor. Something like a 1509 or a 1512 would be where I choose from. Depends on how many cells you want to run as to the winding. The new 1400 series would do well too. Thats a fun hull you got. I have a Bandit, very similar in size, that does very decently using 4S and the SV27 motor.

John

[hydronut]

Originally Posted by m4a1usr

Wouldnt be my choice of motor. Something like a 1509 or a 1512 would be where I choose from. Depends on how many cells you want to run as to the winding. The new 1400 series would do well too. Thats a fun hull you got. I have a Bandit, very similar in size, that does very decently using 4S and the SV27 motor.

John

I agree a Neu 1509 1.5d on 2s would make that hull scream or for a bit calmer set up and less costly, go with a SV-27, Black Jack 26 or a AQ UL-1 motors and esc's on 4s.

[mikesf]

What do you think about this? To save weight the brass tube runs only up to the point it exits the hull. After that a hard teflon tube is running up to the prop. Would you think it could work like that?

[Ub Hauled]

that's pushing your luck a bit.
on the inside I can see it happening since the motor should go around there
somewhere, but on the outside the needs to be a brass tube, just the flex will not
be enough to keep you out of trouble.

[Teach]

cOULD HE GET AWAY WITH IT IF HE WENT WIRE DRIVE?


Curse you caps lock!

[Ub Hauled]

YES! I actually have my wire exposed on my Shovelnose... it rocks.
He'd have to shim it down so that the wire is tighter in the stuffing tube
and place the motor forward a bit so there is more room for the natural
bend of the wire to occur, one does not want a sharp bend.
NO "S" BEND!

[Teach]

Originally Posted by Ub Hauled

YES! I actually have my wire exposed on my Shovelnose... it rocks.

How do you keep water from coming through the liner? Or just not worry about a little water?

[Ub Hauled]

well... on the inside the stuffing tube is a bit longer
and higher so it can attach to the motor at the proper angle,
then you cannot use an unholy amount of cells, just something that is
proper to the size of the boat (so it does not sink too much), and finally
a little piece of silicone tubing that connects on the stuffing tube and
a little bit over the wire, it should be just a little over the wire drive, snug
but not tight so it minimizes the access of water.

[mikesf]

Thanks for all the replies, I might be the second or third person in Greece that builds shovelnose hydros. We are a country that it's coastline is half of Africa's(true) with a fraction of it's size and as you may understand everybody races or plays at the sea where access is easy. The sea is never calm so ony monos and big cats here...

That's the second shovelnose that I own and I am amazed with them for various reasons. The most important is that I can have a scale model that can run at non-boring speeds like the other scale vessels built everywhere. Not to mention their beauty...

On the subject now, I have hooked up the motor and esc and gave it a good beating. The teflon tube didn't move even a tiny bit so I might take the chance to secure it a bit more with epoxy and try to run it like that... The only thing that concerns me is the impact that the water will have on the teflon when turning...

Thanks again and any comment (good or bad) is mostly welcome...

UPDATE

Motor mount measured and epoxied...



Neu 1115 with cooling jacket on watercooled motor mount and behind it a CC120Hydra. I really love the space and the flatness on the hull on shovelnoses...



Mike...

[Ub Hauled]

Mike, shoot some video and post it here please!

[mikesf]

Will do for sure, as I see most of the test would be done next week...

PS, on the wiredrive do you have a mount for it between the sponsoons to keep it in place? Can you post a pic of the bottom of your shovel?

Thanks,

Mike

[Ub Hauled]

Originally Posted by mikesf

Will do for sure, as I see most of the test would be done next week...

PS, on the wiredrive do you have a mount for it between the sponsoons to keep it in place? Can you post a pic of the bottom of your shovel?

Thanks,

Mike

Will post, just gimme some time to take the pic and post, it's 3.20am here

[mikesf]

Anytime it suits you, no rush...

Thanks

[Teach]

NICE motor mount, is that ETTI's?

[ghostofpf1]

Isn't there a chance that the unsupported cable will whip and knot under load with only the Teflon tube for support ??
Steve

[Ub Hauled]

Originally Posted by ghostofpf1

Isn't there a chance that the unsupported cable will whip and knot under load with only the Teflon tube for support ??
Steve

Bingo! Yazzy!

[mikesf]

Originally Posted by Teach

NICE motor mount, is that ETTI's?

Yeap it is ETTI's 380 watercooled...

[mikesf]

Originally Posted by ghostofpf1

Isn't there a chance that the unsupported cable will whip and knot under load with only the Teflon tube for support ??
Steve

Teflon is glued both in the strut and in the brass tube and under NO load it stays put. I will make a test under load and in the slightest vibration I will install a full length brass tube... I eant to just give it a chance bare...

[mikesf]

On second thought, please pardon my many questions, but how can the flex knot since under load is wound up tight?

Thanks!

Mike...

PS. Servo's on...