Fast Planes....Big Inrunners/Outrunners! - Page 21 - RC Groups
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Sep 01, 2012, 10:03 PM
2012 NZ Speedcup - 231 MPH
DownUnderPilot's Avatar
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Sep 02, 2012, 01:40 AM
to get the best results with the 45xx series you need bigger blades like 11x20 or more as we just use.
Last edited by scorpion-fan; Oct 01, 2012 at 04:11 PM.
Sep 02, 2012, 05:34 AM
Why the dirt on the wings?
moparmyway's Avatar
Thats it .................. NOW i am gunna puke !!
If it aint Marcus posting pictures of his CF spinner on this big horse, its a picture of this work of art above !!

Dudes ......... my computer is gunna short circuit from my drooling !!!
Sep 02, 2012, 05:57 AM
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Peter M's Avatar

and I've realised that I'm still in "preschool" ......
Sep 02, 2012, 10:40 AM
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arcticflyer's Avatar

Big Motor...Big Plane

Peter - that big Scorpion of yours needs one of Marcus's Big Typhoons
Sep 02, 2012, 02:21 PM
Carbon fiber is our friend
Steve C's Avatar
That's awesome! Looks like I see gold inside the front, but the back end / stator holder is a new piece correct?

I don't see a place for the prop yet. How many blades will this one get?
Sep 02, 2012, 03:34 PM
300 mph club ;-)
M. Koch's Avatar
Hi Steve! The stator is complete new cnc-drilled by my colleaugue Stefan Bayer who makes all the parts for the new motors, yokes and so on! The yoke for the prop in Ralphs "armor piercing granade" special design will be integrated in the middle part above the cooling holes! Prop i think will be the new
13x27 prop! Not sure if 2 or 3-bladed!
Ciao, Marcus
Last edited by M. Koch; Sep 02, 2012 at 03:40 PM.
Sep 02, 2012, 04:33 PM
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Mreyello's Avatar

First of all,very nice work even without the klowledge about the numbers Ralf is talking about!!!

The ventiation holes at the front look like beeing enlarged to the spinner direction.

In my understanding they are the outlet ,so they throw out cooling air at spinning rotor,what is your intention to modify the holes like this?
wouldnt it be even better to keep the airflow angle more backwards, or even keep the sharp corner to benefit from the low presure spot created by the excelerated airflow behind the prop?
Or do you want to reverse the airflow after motor stops?

Sep 03, 2012, 01:13 AM
there is nothing left from the former radial fan anymore.
the airstream in these motors is completely inverted.

the air is pressed with 400km/h and more throup airgap and slots.
this helps to increase the overload factor massiv.
Last edited by scorpion-fan; Sep 04, 2012 at 05:30 AM.
Sep 03, 2012, 10:07 PM
Aka: Tom Jenkins
ApexAero's Avatar
Hello all, I have been wondering which way the air flow is on the leading end bell. Am planning a 4025 rewind. How can one test windings with minimal equip?
Sep 08, 2012, 04:38 AM
Why the dirt on the wings?
moparmyway's Avatar
Originally Posted by arcticflyer
The 22/60/1E arrived from across the is a 36mm motor that is 90mm long

The KV on this motor as tested by PeterM is right around 1400 and according to all his prop testing data it is quite a beast

Due to the length of the motor and Mega's stiff wires (hate them) I had to make them into little pig tails by winding them around a pen (carefully I might add).

Just found it !!
Beel looking for this picture since you posted this !!!
See how far back the tinning goes on the motor leads ?
I usually cut off everything except the last 1/4" of the tinned wire, leaving much shorter leads !!
Sep 08, 2012, 11:31 AM
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arcticflyer's Avatar
I wondered why those wires were so stiff...might unwind my pig tails and do the same.
Sep 08, 2012, 11:36 AM
Why the dirt on the wings?
moparmyway's Avatar
Cant hurt to have a look !!
If you cut enough, you might even loose a smidgeon of resistance !
Sep 09, 2012, 03:19 AM
Victim of C.D.O.
murdnunoc's Avatar
And here all this time I thought Mopar was ordering his motors custom built with stubby leads!
I've ripped into very other part of these motors, but haven't bothered to have a peek under the insulation
I have a feeling lots of wire strippers and nippers will be going to work with this info
Sep 11, 2012, 12:35 PM
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arcticflyer's Avatar

Time to test the big Mega.

Am going to put the big Mega (22/60/1E) in the Monster today and decided to move all testing from the build thread over here. I will be doing a flight video soon which will be posted on the build but all additional motor testing will be done here.

Will have to make some slight mods to get the motor in the plane.
First...the motor mount was made for Neu motors which do not have that pesky ring on the front. I do not want to weaken my plate with drilling the center hole larger so hopefully Chris can make an aluminum plate that fits on the front of the motor and will allow it to bolt flush without drilling the main plate.

The Mega is longer than the Neu considerably but it is heavier and the battery will have to move back some anyway.

I have two sets of folders to try with this setup Marcus' 7x13's and Downunders 7x10's. I also have two fixed 7.6x12.5's on the way from Marcus so will have some interesting props and combinations to test.

The hope is to get a 6S setup that will get me to 250mph/400kph. That is the goal for this build.

This winter I am going to get another airframe from Andi and that one will be built with outrunners in mind. Will be winding my own motor from a Scorpion kit....winter project!

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