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Old Oct 25, 2012, 03:19 AM
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Joined Jun 2011
16 Posts
Thanks for the replies guys, I'll wait till I'm doing a big order from the HK main warehouse and get the motor that has been suggested and shelve the B2 kit until then (or I might wack in the 700w NTM with a 50a esc if I get bored waiting), In the mean time I'll fun FPV the AXN and serious FPV my fpvraptor.

Cheers for the invite Hoppy, I lurk in the aussie FPV forum from time to time, I doubt anyone is flying fpv within an hour of where I am (Port Douglas, north of Cairns) as I've only met 2 other serious RC pilots around here who seem to talk more than they fly.
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Old Oct 25, 2012, 05:27 AM
Short Circuit Creator
Crashem Dave's Avatar
Geelong, Victoria, Australia
Joined Nov 2004
751 Posts
Hi mixed.
I'm using a Hyperion P1919-06 with a 7 x 5 prop in my Bixler 2 kit, (still under construction)
I already have a P1919-04 (5 x 5 prop) in my AXN which has had many hours flying.
It's a relatively quiet motor, oodles of power, fits the supplied mount and slides nicely into the Bixler motor pod without having to do EPO surgery.
I use a 30 amp ESC in the AXN and will be using the same size in the Bixler 2.
I use 3S, 2200Ma/H packs.
Cheers
Dave
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Old Oct 25, 2012, 06:49 AM
I can fly this plane
Kingdom of Sweden, Gävleborg County, Sandviken
Joined Jan 2012
265 Posts
Quote:
Originally Posted by AlThuban View Post
This has probably been answered somewhere, but I didn't find it in my searches of the thread, so here goes...
What motor & prop combo would you go for if you wanted decent, reliable hardware, a decent, low to medium speed (ie not really faster than stock), and relatively quiet flight but with good, solid climb and wind handling? I've seen a lot of talk about people switching up to 2200kV motors but that sounds pretty "hot" and likely makes them screamers. Some have said the B2 flys well on the stock motor and prop but both the motor and prop are a bit on the cheap & cheesy side.
I was thinking of something like an Aerodrive 2826-1240kV with a three blade MA 7x4 pusher. Then I ran into something about prop stall calculations and got totally confused.
http://www.hobbyking.com/hobbyking/s...ner_Motor.html
http://www.hobbyking.com/hobbyking/s...4_Pusher_.html
I've been flying a Radian Pro all summer here in Cowtown and its fine, though the climb is pretty "soft" and it can get windy enough to give it zero ground speed w WOT (yeah yeah, ok so why am I flying then??). I'm looking forward to the B2 as a camera platform for some aerial photo fun.
You might want to try this:
http://www.hobbyking.com/hobbyking/s...ess_Motor.html
http://www.hobbyking.com/hobbyking/s...dProduct=22424
or this http://www.hobbyking.com/hobbyking/s...ler_7x5_5.html
Makes for a good combination in the B2.
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Old Oct 25, 2012, 11:23 AM
Argue for your limitations
ajbaker's Avatar
Lincoln, CA
Joined Oct 2006
8,424 Posts
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Originally Posted by PinDuke View Post
Actually, I think you might mean THIS motor.? The one you listed has slightly less power than the specs for the stock motor. Notice that the specs for the motor you listed shows 2200Kv under the picture and 1400Kv rating. Hmmm....
AJ
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Old Oct 25, 2012, 05:41 PM
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slothy89's Avatar
Australia, VIC, Sebastopol
Joined Apr 2012
776 Posts
Quote:
Originally Posted by ajbaker View Post
Actually, I think you might mean THIS motor.? The one you listed has slightly less power than the specs for the stock motor. Notice that the specs for the motor you listed shows 2200Kv under the picture and 1400Kv rating. Hmmm....
AJ
I thought the stock motor was 1300kV? So unless 13 is now more than 14, this motor should be more powerful yes? Also in your original question you asked for "not really faster than stock". And the 1400kV motor would match that statement perfectly.
No he does not mean the 2200kV as you also mentioned this in the same post "I've seen a lot of talk about people switching up to 2200kV motors but that sounds pretty "hot" and likely makes them screamers". So you do not appear interested in the big increase to 2200kV.

I would take the 2200 number under the image as a typo, every other mention of the kV rating is 1400
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Old Oct 25, 2012, 06:11 PM
Argue for your limitations
ajbaker's Avatar
Lincoln, CA
Joined Oct 2006
8,424 Posts
Confusion

Quote:
Originally Posted by slothy89 View Post
I thought the stock motor was 1300kV? So unless 13 is now more than 14, this motor should be more powerful yes? Also in your original question you asked for "not really faster than stock". And the 1400kV motor would match that statement perfectly.
1. No he does not mean the 2200kV as you also mentioned this in the same post
2. "I've seen a lot of talk about people switching up to 2200kV motors but that sounds pretty "hot" and likely makes them screamers".
3. So you do not appear interested in the big increase to 2200kV.

I would take the 2200 number under the image as a typo, every other mention of the kV rating is 1400
I might have started that confusion. If so, I apologize). However.
1. Got it.
2. I never said anything like that anywhere on RCG or other forums. I have no idea where you got that. That one is your bad. When you find out who really said it, you might want to apologize.
3. I have no idea what made you jump to that conclusion. You might have done better asking a question before jumping to such an odd conclusion. BTW, I use several brands of 2200Kv motors on many of my planes.
AJ
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Old Oct 25, 2012, 07:33 PM
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AlThuban's Avatar
Canada, AB, Calgary
Joined Jun 2012
740 Posts
it was me

Hi AJ and All - thanks for the replies. I was the one thinking that 2200kV motors would probably make the B2 a screamer in terms of sound, if not performance.

So I'm taking from this: Low kV motor with high pitch prop (ie 5.5 to 6 or more) will yield relatively quiet and slow flight, while High kV motor and low pitch prop (4 to 5) will yield higher sound level and "more spirited" flight while staying in the max efficiency of the combo. Plus a bit of bench testing to fine tune. I was hoping a 3 blade prop on a sturdier motor would give a bit more thrust for the same RPM range without increasing noise. (reasonably quiet is important for me)

I don't see the point of putting gobs of power into the B2. Moderate increase maybe, but there are other airframes probably better for speed like the V-70 (hmm, would it take an FPV package? ) Plus overpowering the stock B2 airframe I expect will run the risk of flight failure.

I'm just looking for a good, solid and reliable drive train with enough power to get her going with a bit of a FPV or camera load and light weight stunts like loops etc. I've got other planes for 3D (without camera).

But my blather aside, I'm still curious. For those who have dropped 2200kV motors with 3s or 4s packs, how much louder is it?
Cheers!
Christopher
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Old Oct 25, 2012, 07:41 PM
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AlThuban's Avatar
Canada, AB, Calgary
Joined Jun 2012
740 Posts
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Originally Posted by xviper View Post
I fly with Calgary Park Flyers and I think I have the only Bix 2 there. I put in a 1100kv motor and a 7X6X3 prop. It seems to fly with good thrust. It's not going to combat winds more than 20 kph very well and cover ground.
Your 1240kv motor isn't all that different from the 1300kv stock one but probably is more reliable.
I used to fly (sold it) a Radian and several guys fly the Pro. They all seem to handle wind pretty well. I've seen the Pro's fly in winds up to 30 kph. I've even gone up on days like that with my Radian. The Bix 2 wouldn't be able to do that, at least not without being a butt clencher.
Hi XV. I've been flying with the CRCSS just E of Okotoks. Not bad. I've had some good flights with the Radian Pro but have also had windy days where it didn't move relative to the ground when facing the wind. Yeah, I didn't fly for long. The Radian Classics have a lot more thrust (?) than the RPros. With the B2 I'm looking for an aerial-photo-maybe-try-FPV platform, and a bit more stunting than the RP. Which 7x6x3 prop are you using? I haven't swapped the motor out yet on the B2 but am looking as I don't expect the stock on to be that reliable based upon comments here and how it looks.
Where do you guys fly (when it isn't snowing - oh fudge!)
Cheers!
Christopher
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Old Oct 25, 2012, 07:55 PM
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United Kingdom, England, Chippenham
Joined Dec 2010
423 Posts
done some bits to my bixler2 already http://bixler2fpv.blogspot.co.uk/
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Old Oct 25, 2012, 08:07 PM
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Canada
Joined Jul 2009
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Quote:
Originally Posted by AlThuban View Post
Hi XV. I've been flying with the CRCSS just E of Okotoks. Not bad. I've had some good flights with the Radian Pro but have also had windy days where it didn't move relative to the ground when facing the wind. Yeah, I didn't fly for long. The Radian Classics have a lot more thrust (?) than the RPros. With the B2 I'm looking for an aerial-photo-maybe-try-FPV platform, and a bit more stunting than the RP. Which 7x6x3 prop are you using? I haven't swapped the motor out yet on the B2 but am looking as I don't expect the stock on to be that reliable based upon comments here and how it looks.
Where do you guys fly (when it isn't snowing - oh fudge!)
Cheers!
Christopher
I'm using this one from HobbyKing:
http://www.hobbyking.com/hobbyking/s...dProduct=16711
It was quite tough to balance. Needed a lot of sanding to get it even close but as the motor doesn't spin that fast, it's been working quite well. I burned out the stock motor early into the 2nd flight. Melted the foam tunnel the motor wires run through.
I'm starting to miss my Radian. The Bix 2 isn't quite the same. I could do more with the Radian than I can do with the B2. Heck, even my X8 flying wing is a more favoured plane of mine than the B2. I just bought a DG1000 from Tower Hobby. I also have a FMS Fox Glider that I really like. I also just converted a 40 year old ASW-17 to power. I wanted the Bix 2 to take with me when I go on road trips. It's almost dialed in now and it'll be relegated to mostly vacation flying. Just gotta fine tune the mixes for throttle to elevator and flap to elevator to take out the diving and ballooning.
We have a flying field next to the Grey Eagle Casino. Some of us fly all winter long on nicer days (weekends).
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Old Oct 25, 2012, 08:19 PM
Argue for your limitations
ajbaker's Avatar
Lincoln, CA
Joined Oct 2006
8,424 Posts
Quote:
Originally Posted by AlThuban View Post
I haven't swapped the motor out yet on the B2 but am looking as I don't expect the stock on to be that reliable based upon comments here and how it looks.
Where do you guys fly (when it isn't snowing - oh fudge!)
Cheers!
Christopher
Where I am at, there is no such thing as snow. We fly all year around if the wind isn't blowing too hard. We NEVER put our lawn mower away for the winter. Life is good.
AJ
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Old Oct 25, 2012, 09:37 PM
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AlThuban's Avatar
Canada, AB, Calgary
Joined Jun 2012
740 Posts
Quote:
Originally Posted by CorporalB View Post
done some bits to my bixler2 already http://bixler2fpv.blogspot.co.uk/
Nice - looking forward to the results. How are you going to balance it with the 35mm motor? Or does all the FPV hardware end up doing that for you (meaning stock motor + FPV equipment = a bit of fidgeting)
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Old Oct 25, 2012, 09:56 PM
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Canada, AB, Calgary
Joined Jun 2012
740 Posts
Hi XV. Well, I was originally looking at the Multiplex FunCub as an aerial photo platform then I saw this thing. I have been having too much fun with a keychain camera on my sailplanes this summer. Now I want to try a better camera like a GPHero which means more weight. Plus the B2 is a pusher which keeps the prop out of view, and designed for hauling this stuff up. Another reason for calm and slow flight vs hot-rodding it is because I want to get some nice pictures. I've seen some pretty neat FPV video including around and over mountains such as this one:
Best of FPV Flying, The best moments of a 2 year FPV flying career !!! (5 min 7 sec)
(Hah AJ - you may not have snow but do you have the Rockies? (teasing because in some ways I am indeed jealous))
Anyway, I'm looking forward to getting this thing going. I have a few parts on order now before I assemble, including wing servo connectors, a variety of props, HK stabiliser, etc. I might upgrade the spar for good measure.
Well, I'll try it stock and see how she is with equipment.

Cheers!
Christopher
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Old Oct 25, 2012, 11:02 PM
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San Diego, CA
Joined Dec 2006
1,280 Posts
Quote:
Originally Posted by AlThuban View Post
Hi XV. Well, I was originally looking at the Multiplex FunCub as an aerial photo platform then I saw this thing. I have been having too much fun with a keychain camera on my sailplanes this summer. Now I want to try a better camera like a GPHero which means more weight.
Have you looked at this one?

http://www.bananahobby.com/super-sky-surfer.html
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Old Oct 26, 2012, 02:05 AM
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Canada, AB, Calgary
Joined Jun 2012
740 Posts
Gee, that looks a LOT like the Bixler, but bigger. Is the SkySurfer1 = Bixler but just renamed?
Nope - didn't know it existed before you suggested it. That is a big foamy indeed.
Interesting that they use a 1250kV motor and 8x6 prop. Also interesting that one reviewer thought that setup underpowered.
One thing I like about the B2 so far is that it uses 3S2200 packs and I have a pile of those.
Cheers!
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