HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Nov 02, 2005, 05:15 PM
Wayward Pilot
JREEVES's Avatar
USA, FL, New Port Richey
Joined Sep 2001
826 Posts
BTW, allerc is blowing out the Hyperion X22 series motors in all winds for $39.95 right now, should be a drop in fit for alfa fans if speed 300's fit. I assume they're switching to the Y22 series now, although I'm not sure which is better. Anyway, just bought my fill so I don't mind passing it along . The 5000kv gives me 11.6oz on 3s with an microfan installed in my miniMirage. Wonder what 4s would do in the alfa???
http://www.allerc.com/specials.php
JREEVES is offline Find More Posts by JREEVES
Last edited by JREEVES; Nov 02, 2005 at 05:25 PM.
Reply With Quote
Sign up now
to remove ads between posts
Old Nov 02, 2005, 05:46 PM
Model Designer
keven64's Avatar
United Kingdom, England, Burnley
Joined Apr 2001
5,490 Posts
Quote:
rcguy01 boasted
My brushless motors last thousands of flight, in years, and keep going strong.
Could you please tell us all exactly which types of brushless motor you have flown "thousands of flight, in years"... that we all might buy some of those - and not have to bother with new ones...

There you go Justin, that'll save you some time for FLYING !

Keven.
keven64 is offline Find More Posts by keven64
Reply With Quote
Old Nov 02, 2005, 06:29 PM
Permanently Banned
Joined Apr 2003
3,171 Posts
Quote:
Originally Posted by keven64
Could you please tell us all exactly which types of brushless motor you have flown "thousands of flight, in years"... that we all might buy some of those - and not have to bother with new ones...

There you go Justin, that'll save you some time for FLYING !

Keven.

well, did I tell you "years"????

Ok, once upon a time, in America, when the sky was so blue
and the bed was so warm, so good for ****, those Megas from Czech
were so cheap, as of US $65/each from MEC corp. I bought a whole
bunch of them: 2 turn, 3 turn, 4 turn.... 7 turn. And after
thousands of flights on each, years of using, they are
still shine and run so well like that energize bunny.
Going going and going...

Did I tell you years????
(only if you used those motors within their specs. Did I tell you so?)
rcguy01 is offline Find More Posts by rcguy01
Reply With Quote
Old Nov 02, 2005, 06:34 PM
Permanently Banned
Joined Apr 2003
3,171 Posts
Quote:
Originally Posted by JREEVES
BTW, allerc is blowing out the Hyperion X22 series motors in all winds for $39.95 right now, should be a drop in fit for alfa fans if speed 300's fit. I assume they're switching to the Y22 series now, although I'm not sure which is better. Anyway, just bought my fill so I don't mind passing it along . The 5000kv gives me 11.6oz on 3s with an microfan installed in my miniMirage. Wonder what 4s would do in the alfa???
http://www.allerc.com/specials.php
Do you know that very soon GWS brushless motors will
be out with the price of $15/$20 a piece? I suspect the
quality would be as good as Himax or low end Chinese made hacker.
Then is this Hyperion stuff a good deal?
or the buyer market is about to get better and better?
rcguy01 is offline Find More Posts by rcguy01
Reply With Quote
Old Nov 02, 2005, 06:48 PM
EDF rules... :)
AirX's Avatar
Joined Nov 1999
13,559 Posts
RCGuyo1,

Go ahead and prove Justin is not doing the right thing.

You know what you cant.

Go to the other Alfa model thread where Zimmerman is running a Hacker 20mm motor in the same fan with about 2/3rd's the performance that Justin saw from the Mega motor. He is not overheating the motor and it produces less torque for the watts generated. The Mega motor will outlast the Hacker because there is greater torque, because of the larger diameter of the Mega so it will produce even less waste heat in spinning the rotor at the same rpms.

As far as motors lasting years I have seen OS91DF's in Dynamax's last one flight, wow $300 dollars down the drain. So we get 100 flights with stellar performance better than 1000 flights at mediocre performance.

This is the way of fan performance, like it or leave it.

Eric B.
AirX is offline Find More Posts by AirX
Reply With Quote
Old Nov 02, 2005, 07:02 PM
smug in granny panties
monkamarm2000's Avatar
NorCal Silicon Valley
Joined Aug 2002
11,778 Posts
guess i see both points of view, lets face it some of us just want to push it, how can you know till you try. And I also remember everyone telling me that 2T would blow up and last a week at 3s, and back then it was beyond manufacurers limits, which have since been revised. And in the same turn saying that same at 4s, ok so they were right about that part! lol I think more to the point were testing manufacturers quality more than anything, I and many others ran identical kv motors in Hacker and Kontronik motors for literally years without failure.

Barry
monkamarm2000 is offline Find More Posts by monkamarm2000
Reply With Quote
Old Nov 02, 2005, 07:02 PM
Permanently Banned
Joined Apr 2003
3,171 Posts
hey, I always look for the new great stuffs out there.
So I hope this is a good one. HOPE.

the only thing I want to know is... the initial test
indicates little about longevity. The stress test will
say much much more about it...
And nobody had done the stress test
on this very out of the book power set up yet.
Maybe nobody has gut to do so... Sure, I don't.

I love it if this power set up last for a long while.
Nothing is wrong with it, right?
rcguy01 is offline Find More Posts by rcguy01
Reply With Quote
Old Nov 02, 2005, 07:05 PM
smug in granny panties
monkamarm2000's Avatar
NorCal Silicon Valley
Joined Aug 2002
11,778 Posts
I agree, and even then theres last, and then theres last. even if something is still running how much of it has demagged and how far down have the power levels gone. for example I have a few 480 size motor setups that run at the same cell counts but they have dropped significantly in power over the years.

Barry
monkamarm2000 is offline Find More Posts by monkamarm2000
Reply With Quote
Old Nov 02, 2005, 07:08 PM
Permanently Banned
Joined Apr 2003
3,171 Posts
Right on Barry.
Thanks for the great comment.
rcguy01 is offline Find More Posts by rcguy01
Reply With Quote
Old Nov 02, 2005, 07:12 PM
Permanently Banned
Joined Apr 2003
3,171 Posts
Quote:
Originally Posted by AirX
RCGuyo1,
So we get 100 flights with stellar performance better than 1000 flights at mediocre performance.



Eric B.
Mediocre performance? You ain't see nothing yet buddy?
the world out there is much bigger than.. you know what
Peace out...
rcguy01 is offline Find More Posts by rcguy01
Reply With Quote
Old Nov 02, 2005, 07:17 PM
EDF rules... :)
AirX's Avatar
Joined Nov 1999
13,559 Posts
Quote:
Originally Posted by rcguy01
well... congratulation on the initial test.

Snip>

Now look at the new great set up, everything seems
passed the red zone, the motor, the fan...
that little brother 16/7/3 at 43 amps, 65K rpm, 560 watts?
and that little alfa fan at 560 watts?
enjoy living dangerously then. None for me please, I
prefer to stay within the limit.
I have nothing against
that fantastic set up. Just for my own safety's sake.
Don't enjoy seeing the fan blows up in my hands

<Snip
Right there in your post you stated your position yet you still argue. What happened to state your case and go on.

Barry,

How about squeezing a little more out of that OS91, oops too much and I cant get enough mixture change from the remote needle, buned that one up easily on one run. Bought another and went on flying. If some people dont want to spend the money dont play the game. I cant play in the large fans anymore but the small fans are fine for right now and I go for performance.

Eric B.
AirX is offline Find More Posts by AirX
Reply With Quote
Old Nov 02, 2005, 07:23 PM
Permanently Banned
Joined Apr 2003
3,171 Posts
I would love to try the time honor systems, and not
some initial tests out of few seconds on the bench.
rcguy01 is offline Find More Posts by rcguy01
Reply With Quote
Old Nov 02, 2005, 07:33 PM
EDF rules... :)
AirX's Avatar
Joined Nov 1999
13,559 Posts
Quote:
Originally Posted by rcguy01
Mediocre performance? You ain't see nothing yet buddy?
the world out there is much bigger than.. you know what
Peace out...
So what now, is this a challenge or a threat?

Eric B.
AirX is offline Find More Posts by AirX
Reply With Quote
Old Nov 02, 2005, 07:36 PM
MORE POWER IS THE KEY
Paul DF jet man's Avatar
South Australia
Joined Jun 2004
1,094 Posts
Quote:
Originally Posted by roccobro
Having seen almost 70K rpm and there "only" being that much gap looks like it has the "better" ABS plastic, no?

Well, I got back to the 2025-4200 on 4s before the house went into "noise lockdown". Without the inlet lip, I recorded about 55k rpm and "only" 350g thrust. With inlet lip, and at the 17.5A/14.4V it spun 53.5k rpm and 500g of thrust. This confirms three things. 1) A proper inlet and outlet ducting can make a huge difference in the fans ability to make thrust, 2) right above 50k rpm is 500g of thrust with proper ducting or inlet and 3) A 4s1320 TP PL (or (2) 2s packs adapted) can be used and alot of weight (and cash!) can be saved over the current popular 5300 on 3s setup.

With the Mega motors ability to do as much (and more) than the Himax, AND save a bit of weight makes it an easy power upgrade. I wil next go back to teh 16/7/4 on 4s and use the inlet lip and outlet cone. It initially spun the same RPM w/out the inlet as the Himax did with the lip. I expect a smart increase in static thrust to go along with the 55K rpm it did on the 4s1p, just as the himax experienced with the lip and 4s2p.

One thing that I "worried' about is the max rpm of the motors. The Himax has some reference to 60K rpm, and Power says there is a 55k max rpm for the Mega. Website catalog says "Kevlar bandaged to retain magnets at 35 000 revs or more." There is nothing in the three pieces of paper that came with each motor about rpm, and the only hidden piece of information on the box is inside the lid; "100% recycled paper" and "The handmade box is specially designed for Mega Motor".

Somebody? help? I wouldn't mind throwing a magnet in the name of science, but I don't always wear glasses during this testing....

Scott- just let me know when. We can do it "while you wait"

Justin

EDIT: Bruce just read your information. Thanks! Funny that th himax is rated for the same rpms... Boca bearing here I come?



HA HA HA that is absolutely stupid , running an Alfa 60 on 550+ watts. What were you thinking??????

AND thatís why I love it LOL . You did your self proud mate in my eyes anyway.

I love pushing the limits well beyond the specs and finding out something new. WHY because we can .

Im not saying itís a good way for getting years of service from your equipment but face it if your equipment is years old its going to be very out of date and more then likely boring anyway. So go hard and play hard thatís the way I see it. just my 2c
but these is nothing wrong with having equipment for a long time either.

For the nay sayerís say what ever u want where having fun and where not using your equipment so I see no reason why anyone should criticize these tests.


RIDE ON roccobro I look forward to more of your amazing resalts.

I have 4 spare Alfa MK2 fans 2 with 2025 4200ís and 2 with 2025 5300 I will have a play with these later on when I have time.

Maybe the 5300 on 4s.
Paul DF jet man is offline Find More Posts by Paul DF jet man
Reply With Quote
Old Nov 02, 2005, 07:40 PM
MORE POWER IS THE KEY
Paul DF jet man's Avatar
South Australia
Joined Jun 2004
1,094 Posts
Quote:
Originally Posted by monkamarm2000
I agree, and even then theres last, and then theres last. even if something is still running how much of it has demagged and how far down have the power levels gone. for example I have a few 480 size motor setups that run at the same cell counts but they have dropped significantly in power over the years.

Barry

so then update your motors and equipment whats wrong with that, everthing wears out no matter what you do.

but you can choose the rate at with things wear out dont get me worng there
Paul DF jet man is offline Find More Posts by Paul DF jet man
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
For Sale For Sale - FS - GWS 350 Motor / Power System - D Geared - Prop, Spinner, Deans inc. freedomflyer Aircraft - Electric - Power Systems (FS/W) 1 Jun 26, 2006 03:25 PM
For Sale FS - GWS 350 Motor / Power System - D Geared - Prop, Spinner, Deans included! freedomflyer Aircraft - Electric - Power Systems (FS/W) 1 Jun 09, 2006 04:16 PM
Discussion Alternate airframe for Alfa Mig fan/motor?? gambit7 Electric Ducted Fan Jet Talk 5 Feb 21, 2006 04:29 PM
Hobbico Press release - Ultrafly D/13/32 Brushless Motor Power Upgrade Kit Dave Lauck Product Announcements 0 Sep 28, 2005 03:01 PM
hyperion motor and Alfa fan? andre petit Electric Ducted Fan Jet Talk 0 May 12, 2005 04:59 PM