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Author Topic: What plane and setup for an AXI 2212/26  (Read 911 times)

Offline johnbyrne

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What plane and setup for an AXI 2212/26
« on: December 19, 2009, 09:11:10 AM »
I'd like to give electric a try but don't want to invest till I decide if I like it.  I have the following:

AXI 2212/26, Phoenix 25 and Phoenix 35, 3S packs in 800, 1300, and 2100.  I don't recall the C rating for the 800 or 1300.  The 2100s are older with around a 12 to 15 C I believe.  I do not have a controller.

What size plane could I build with these items?  I'd like to fly PA with it if possible but not trying to make something competitive :)

By the way, I also have a PJS 3D 1200.  Can't find info online but I have found that it is slightly stronger than an AXI 2808/24.  With that said I also found the following:  "I have 2 pjs1000's, they both put out measured thrust of 48oz (3lb's) with 11x4.7 apc prop, 3 cell lipo 2100, cc45 SC.
This is measured at 5000 feet elevation. the 1200 will put out even more power."   I guess I'm not sure what this motor is. 
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Alan Hahn

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Re: What plane and setup for an AXI 2212/26
« Reply #1 on: December 19, 2009, 10:28:35 AM »
The 2212 should be fine up to a Ringmaster/FliteStreak type plane. I think the kV is ~940 rpm/V.

I fly an Electric Super Clown Arf with a 3s2100 mAHr pack. You will be limited to using a higher pitch prop due to both the kV of the motor and the voltage of the pack. I use an APC10-7 e (--check out my description above in the List Your Setup thread) and fly in the 4.9-5.0s lap range on 58 foot lines. With my setup I also use 0.012 lines due to the low weight (28oz AUW).

The upper limit would be something about Nobler sized. I have flown mine with a 3015 motor, which is just a bit bigger than your motor. It flew fine, but I needed a 4s2100 pack to make the pattern.

I can recommend either the JMP-2, Ztron, or Will Hubin timers. They all work well. There are other fancier ones out there, but for getting started, these (~$30 range) work well with the Phoenix ESC.

If your flying weight is ~30oz or less, the Phoenix 25 should be just fine. The 35 is ok too of course. Basically everyone flies in governor mode. Assuming yours are relatively recent purchases  (last 2-3 years), they can easily be setup for the governor. I do think you need the Castle Link setup to get to governor mode (but I am not positive).

I believe I put in a review of the Super Clown Arf (look in the review section. I thought I had a photo or two. That setup may be the old original one, and what I list above is what I eventually evolved the setup too.

Others have setup Ringmasters (search on that name in this forum). I bet the Flite Streak Arf would be a good setup too. I fly mine with a Fox 15, so I bet your setup would work well in it too.

Offline Igor Burger

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Re: What plane and setup for an AXI 2212/26
« Reply #2 on: December 19, 2009, 10:41:38 AM »
Here you can find all about PJS motors: http://www.pjs.cz

Be carefull with PJS, we found that they are on edge with max current if they run in our applications at high revolutions and partial throttle. It is better to be conservative.

Also if you use 2 blade fixed prop, it is better to glue the motor to the motor mount instead of fixing by that one screw.


Offline johnbyrne

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Re: What plane and setup for an AXI 2212/26
« Reply #3 on: December 19, 2009, 11:50:52 AM »
Thanks for the info guys.  The controllers do have governor, was using in helis.  I do have the link too.

I think the Kva is 920 for the 2212/26.  That puts it just over 10k on 11.1v.   Got it on a knee jerk to build one of those flying hydro boats.  They were using a 10x4.7 and I've seen that size recommended for this motor.  Would it give enough speed on 3S for c/l you think?  WOuld it be too much on something smaller like a 1/2A Pathfinder with a smaller pack?  (or too heavy?)  

Thanks for the PJS link.  Looks like the motor is a little stronger than the AXI.  I wonder if it would fly an ARF Nobler?  


Another question, given this will be a poor mans plane just to see if I like it, which timer should I get with economy but decent performance in mind?
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Offline Igor Burger

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Re: What plane and setup for an AXI 2212/26
« Reply #4 on: December 19, 2009, 12:40:21 PM »
I would say Nobler will need at least PJS 1400. I had PJS 1400 in 1000g heavy model with span 1200mm and folding prop aeronaught 10x6. Motor was relatively hot after summer flights.

Alan Hahn

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Re: What plane and setup for an AXI 2212/26
« Reply #5 on: December 19, 2009, 01:12:41 PM »
<snip>....

Another question, given this will be a poor mans plane just to see if I like it, which timer should I get with economy but decent performance in mind?

Will Hubin has some economy timers---even has a copy of Igor's original timer. If you use governor mode, all you really need is something that turns on, has a settable throttle, and then times out. I would give Will a PM (he is on this forum). Looks like you might be able to find a timer for  ~$15 or less.

Offline johnbyrne

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Re: What plane and setup for an AXI 2212/26
« Reply #6 on: December 19, 2009, 05:48:13 PM »
How about these motors on a Bearclaw?
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Offline Mike Anderson

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Re: What plane and setup for an AXI 2212/26
« Reply #7 on: December 20, 2009, 09:36:44 PM »
I have to disagree with the use of this motor for anything larger than about 1/2A size -- they are rated at 11 amps for 60 sec., and up to about 125 watts.  I doubt you'll get any kind of flight capability for anything larger than 150 - 175 sq. in. and weight of up to maybe 12 oz.

If you want to fly something the size of a Jr. Ringmaster or Jr. Flightstreak, you will need 225+ watts and the 2217/xx series of motors, in my experience.  You can get a real cheap one - like a BP 2217/6 for about $20 - it will handle 20-25 amps on 3 cells and turn a 8-4 at over 11000 RPM.

For a Bearclaw, Skyray, etc., something over 350 watts will be needed.

I've been using a 2212/6  (BP or Suppo but the same numbering system as Axi) at about 10 amps on 2 cells - turns a 6-6 at over 13000 RPM.  This on a 30" span, almost 200 sq. in. 1/2A size profile.  This one has a Kv of 2250.  For 3 cells, you could try whatever model  has a Kv in the 1500-1800 range on something in the same range.  On a light plane (about 10 oz.) this will do the beginner's pattern on 42' lines, but only just.  In any kind of wind, probably 35' lines would be the max for comfort.

Just another opinion --

<Hobby Lobby no longer has spec's in their on-line catalog for any of the brushless motors, but here is a blurb from the review they reference:>

2212/26
This one would be a 7 to 8-cell nickel or 2S
Li-Poly direct replacement for most of the
geared 300 drives out there, in planes like the
GWS warbirds or Mountain Models or Stevens
AeroModel ships, using the same batteries and
props (9 to 11-inch diameter) as you would use
for the 300s. On 3S Li-Polys or on 10 nickel
cells, it is comfortable with 8 and 9-inch props,
or the 10x4.7, and at power levels up to 125+
watts. Planes like the foam Potensky Christen
Eagle from Hobby Lobby would be a good
application for this one on 3S Li-Polys.



Mike@   AMA 10086
Central Iowa

Alan Hahn

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Re: What plane and setup for an AXI 2212/26
« Reply #8 on: December 21, 2009, 02:29:03 PM »
Mike,
I think you are right. For some reason I thought I saw "2812". Wow that was a big mistake! HB~>


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