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Justin Stuart
01-21-2011, 03:34 PM
Have you tried Innov8tive Designs? How about RCDude? They are both Scorpion dealers.

jointer
01-21-2011, 04:15 PM
I did not even installed mine yet... i guess i do not know what i am missing. :)
But the weather is not good anyway, so i do not fly.
Good luck finding one.

g-bru
01-21-2011, 04:55 PM
Weather is looking good tomorrow, 3 degrees and no rain!!! Packs are charging and will be the 4525's first flight, so really excited and totally looking forward to it. :YeaBaby:

G.

helicraze
01-21-2011, 11:06 PM
You will like it.

It was almost 30deg today, motor runs hot at that temp (I prefer 20deg) makes crazy power.

Its really addictive though!

g-bru
01-22-2011, 01:35 PM
Yup, its mental, I am still giggling - unfortunately no footage, but you all know what it is about anyways.

Managed to scrape the 4525's can on the main shaft bearing support even though I locked it down good and proper as suggested by Edvard. Must have happened at the end of the high speed run when I did a lightning fast knife edge bank turn!!!!!! :WOW

All the boys at the field had their mouths on the floor, the TDR in combination with this motor has bags of speed and power, full pitch climb out with no head decay - just like you said HC!!! :YeaBaby: :thumbup:

I've got the horn! :bad

G.

Edvard R
01-22-2011, 02:42 PM
Right on, G :thumbup:

You need to grind off a bit of the bearing mount. Did you get frame rubbing?

Looking forward to hear from ZT on his first flight with the 4525.

g-bru
01-22-2011, 05:01 PM
Right on, G :thumbup:

You need to grind off a bit of the bearing mount. Did you get frame rubbing?

Looking forward to hear from ZT on his first flight with the 4525.

Nope, no rubbing of the CF chassis dude. :thumbup:

Hmmm... not sure if I still need to grind off some of the bearing mount as the motor seems to have already done that. :shock:

I may still shave just a hair extra off with the dremel.

G.

dswitkin
01-22-2011, 08:19 PM
My 4525 arrived today. First impressions:


It's quite a bit bigger than the 4020 I'm familiar with. :)
There are no bullet connectors included, either attached or not.
The top engraving is very nice, I got #98.
The windings are surprisingly a bit sloppy. Perhaps heavy gauge wire is difficult to wind?
There are no markings at all on the black part of the can like other Scorpions have. Instead it has ridges.
The cogging force is fairly low, a lot less than a 4020-910.
The motor comes in a standard Scorpion box. Nothing fancy like I thought they were doing on the high-end ESCs. (Not a complaint, just an observation.)


Overall it looks good. My TDR is still a few months away so unfortunately this beast will have to sit on the shelf until then.

Daniel

Justin Stuart
01-22-2011, 10:57 PM
Perhaps heavy gauge wire is difficult to wind?

Have you tried to bend the wire leads at all? That is some stiff wire. It's like taking a wire coat hanger and trying to bend it into a motor. I can't imagine how hard that motor must have been to make. The guy at the Scorpion factory must have very strong fingers. I think each one of these motors takes a very long time to make because it must be made by hand by a skilled motor maker.

No bullet connectors is a good thing in my book. I don't like the new Scorpion bullet connectors. I'm still using the old Scorpion connectors which are the MP-Jett kind. I think Hyperion is still selling them. I feel they hold a lot better than the "spring" bullet connectors.

helicraze
01-23-2011, 07:29 PM
Using 4MM bullets, just like all my motors, never had any issue on any heli.

PS readyheli has 2 4525LE in stock!

Edvard R
01-25-2011, 04:45 PM
ZT - will that 4525 of yours ever take to the skies in Florida?

:)

ZuvieleTeile
01-25-2011, 05:13 PM
ZT - will that 4525 of yours ever take to the skies in Florida?

:)

Maybe Edvard,
I try to find time to change the Jive 80 to the 120 and get the 4225 in.
Need to do some soldering, because there is the Emcotec switch in between.
I hope for the weekend.

jointer
01-25-2011, 05:20 PM
You can run the Scorp with Jive 80.
For a minute, or two maybe? :)
Thermal shutdown is soft shutdown. (not sure about the current one though). :)
I was thinking about the Emcotec switch, but i cannot justify it.
More connectors, more wires, more weight.
Yes, easy start, with canopy in place, but nothing more.

dl7uae
01-26-2011, 03:15 PM
Thermal shutdown is soft shutdown.
"Soft"?

ElectricSheep
01-26-2011, 03:34 PM
Thermal shutdown is soft shutdown. (not sure about the current one though). :)


(Over) current shutdown is a soft shutdown. I found that out with a 4225-610 LE and Jive 80+HV combo. :o

Justin Stuart
01-26-2011, 03:35 PM
What is an Emcotec switch?

jointer
01-26-2011, 03:51 PM
Then it is good controller. :)
Because, Tom, for us heli flyers, every shutdown which does not result in turning something off, is nice soft one, saving the heli from disaster. :)

http://shop.rc-electronic.com/e-vendo.php?shop=k_emcotec_e&SessionId=&a=article&ProdNr=A72010&t=11&c=764&p=764
I do not want to add more wires, so i will not be getting one.

ZuvieleTeile
01-26-2011, 04:23 PM
What is an Emcotec switch?

An electronic switch to give juice to the ESC.
You can connect the battery with the ESC, no spark, mount your canopy, carry your heli out to the filed and just pull the pin or magnet to arm the switch.
ESC gets powered up, BEC starts working, receiver and flb system can boot and you are ready to go.
When you are done with flying, push in the magnet to de-arm the system and you can carry your heli home. No canopy removal needed. (Only for charging)

jointer
01-26-2011, 04:27 PM
ZT, i am not sure, but i maybe read something about you can charge the battery while it is connected?
Not much use for me anyway, because i charge as 6S, so i need to unplug it completly.
That is why there are not much benefits for me.

ZuvieleTeile
01-26-2011, 04:32 PM
ZT, i am not sure, but i maybe read something about you can charge the battery while it is connected?
Not much use for me anyway, because i charge as 6S, so i need to unplug it completly.
That is why there are not much benefits for me.

Hi Jointer,
no, there is no charging when connected.
Only, if you rig some extra charging leads.

ZuvieleTeile
01-26-2011, 04:33 PM
"Soft"?

Hi Tom,
I had the impression that the Jive reduces the output, if there is an overtemp.
Looking at your graph, that make me question that.
It looks like a hard shut down. At least after 10 sec. of reducing power.
Hhhmmmm.

jointer
01-26-2011, 04:35 PM
No harm here though.
http://www.youtube.com/watch?v=Q_E-vK0Qo50

ZuvieleTeile
01-26-2011, 04:41 PM
What kind of motor, Jointer?

dl7uae
01-26-2011, 04:47 PM
Yes, ZT, it is a period of about 10 seconds of more or less "soft" reducing PWM - but after that... plopp. This happens if the PA's temperature exceeds 100C.

Tom

ZuvieleTeile
01-26-2011, 04:51 PM
Yes, ZT, it is a period of about 10 seconds of more or less "soft" reducing PWM - but after that... plopp. This happens if the PA's temperature exceeds 100C.

Tom

Ho did you manage to get to 100C?