Scorpion Outrunner power in my Rigger

[mobychev]

Hi Patrick
As you know i have a very similar rigger to yours and have been having similar frustrating sessions, with one reasonable fast run, then all attempts to adjust this and that changing props etc, seemed to get worse not better, in desparation on friday i threw in a new battery that i had for another project (same size and mah) but HOLY S$@T the thing became ballistic MAJOR difference, maybe you could try another set of batteries?? it worked for me!!
cheers
Graham

[Ub Hauled]

I do not remember who, but someone builds an outrunners that can take 395*f without issues.

Not w/o issues, without melting down....
the mags get weaker and weaker though
if constant heat is applied.

[yurkanip]

Guys..thanks for the input. I spoke with Lucien miller on the phone today, who designs the motors and he said to run at 15 degrees timing and assured me that this was a true 6s motor, capable of running hot in a heli..at about 30-35k rpms...no problem. His only concern, was having it in a sealed compartment and not much air to move around it..even with the big fan housing. Running an electric motor in a very tight enclosed compartment is basically every FE boat out there. I will try this timing for another run and test. Graham...I have another set of batteries I have tried..and same thing...exact same speed...it did not change. with this motor or my feigao.
Fred, I think that you are on to something...but I actually think I need more lift, or more angle of attack to get less sponson touching the water...not sure though. In making it flatter, I worry about putting more of the sponson into the water...maybe you were meaning the other way around, and I just misread.
after talking with lucien..he did say that these motors are capable of 392 degrees...obviously would never run one at that temp..but he said they will hold together up to that temp. back to the testing again.

I might try rear sponsons just for the hell of it. and secondly a bigger prop. or one that is not detounged...just to see.

[FRED]

Scorpion Outrigger

Remember what i typed; 1 step at a time and the shape of sponsons is the last resort after you exhausted the other options. Now if memory serves me right, i had toe-in on the sponsons so actually my sponsons dugin alittle for turning traction like a strake on a mono with sharp strake edges. Ok, this really sounds dumb to you and others ; but have a open canopy , just over the outrunner but with a round windshield and side covering 3/4 of the open area. Now that the outrunner has its core which spins on the exterior, moisture will be suck out and the spinning action would throw moisture away from motor. They do have someone trying to develope cooling for the outrunner but it is a distant future. These are just my thoughts. I've gotten rid of my riggers and big boats and gone to H2O-H2O's by Terry Davis as seen on Finedesign and BBY Micro Scat Cat and Warzone Jr., and Wooden El Lobo II's and Rumrunner Mutineers and wooden ( homemade ) airboats. The budget waranteed x- amount since prices have risen 100% on parts and postage for parts. This site has the most parts and the fastest service this side of timbuctoo!! LOL!

[Brushless55]

Not w/o issues, without melting down....
the mags get weaker and weaker though
if constant heat is applied.

This was not my claim..
It was noted from a manufacture

[FRED]

Scorpion Outrunner

Starting a new thread; a few laughs, not by a darn side on the laugh bit. Your one the the few who who listened even tho some thought ideas were funny or dumb and the way you presented your situation was professional in every respect. I like when boaters chipped in and gave they're food for thoughts is what forums are for, my hat tips to all who chimed in!! Now if your wallet can stand to buy another outrunner so you can switch motors so the other can cool and last longer, i would. Make your own wire drive. There's an article in Radio Control boat Magazine with pictures on how to make one with 1/16" wire and adhesives to use like Loc.603 and Auto sleeve retainer and not use a soldering iron which they say weakens the wire.

[Brushless55]

I may try an outrunner (Trex 500) motor in my Mean Machine and see what happens..

[FRED]

Scorpion Outrunner

We tried ( wife and i ) tried to scan and nothing seemed to work. Article was in RCBM Mag October 2003 and is 3 pages long. I went to kinkos and they wanted $7.00 per sheet, i said no thank you. Place your order with Steve for flex shaft and cable and probably 1 piece of 5/32 K & S from hobby shop. Steve is fast on delivery. Well try and get this ( censored ) scanner figured out and then will copy and then you can use for reference later on. Sorry, we tried.

[bea5017]

VIDEO of the rigger run PLZ! im thinkin bout twin scorpions in 32 inch cat but i wanna see em in action b4 i but a pair!

[raptor347]

I tested one of the scorpion hk-3026-1900's in my spec rigger. It turned my dialed race boat into quite the little animal, actually had to lift a little in the corners. Just a motor swap, no other changes (same cells, esc and prop) and picked up 6 mph over the UL-1 motor. Pretty impressive motor for little money. Performs better than the kV rating would indicate. I have a twin project in mind for a couple of these.

[bea5017]

me too, thinkin bout the dual 1400 kv scorpions on 6s 32" cat , should be intresting. i read somewhere that the 1400 kv put off more power than the 1600 kv prob spin a bigger prop too what esc u run on it

[yurkanip]

Brian...Glad you were able to have a success with this motor as well. My scorpion is a great motor...will try it in my new rigger and the H&M I am building also. I thought about the 1900 vs the 1600 (which I got for 6s only) but sounds like they could be rated for more than they claim?

[Brushless55]

Hmmm?
I wonder how a pair of these motors would work in the new KOS FE Cat ?

[mikesf]

Just for the record, I run a 1/16 shovel from H&M with a 2221-8 outrunner and it flies That little motor is producing, apart from quite some power, a way smother ride than a 1115 NEU did especially when you let go off the throttle. I am not saying that the NEU is not a good motor, I use it in my 24" mono and only the prop stays in the water.

For the scorpion I am using a watercooled motor mount though and I get around 50* C, that's 122* F. It may seem alot for a inrunner but this little bugger can take it easily.

Highly recommended. Motor and mount came up to $100 best value for money...

BTW, one may need to recalculate the offset for the flex a bit more to the right given the increased torque on hydros...

[sailr]

Where did you get the water cooled motor mount? I've searched the Scorpion sites to no avail.

Just for the record, I run a 1/16 shovel from H&M with a 2221-8 outrunner and it flies That little motor is producing, apart from quite some power, a way smother ride than a 1115 NEU did especially when you let go off the throttle. I am not saying that the NEU is not a good motor, I use it in my 24" mono and only the prop stays in the water.

For the scorpion I am using a watercooled motor mount though and I get around 50* C, that's 122* F. It may seem alot for a inrunner but this little bugger can take it easily.

Highly recommended. Motor and mount came up to $100 best value for money...

BTW, one may need to recalculate the offset for the flex a bit more to the right given the increased torque on hydros...