Brushless Motors for Sale -JustGoFly

[ScienceGuy]

Our first order of 300DF and 400F motors has just arrived and is ready for shipment to you. Both motors are high quality brushless outrunners with the 300DF weighing in at less than 30 grams and the 400F at 46 grams. Our testing has shown excellent thrust to watt ratios with both motors when appropriately geared and propped. They both fit the readily available and inexpensive GWS 400c gearbox. The 300DF has been tested for direct drive and should be a good performer in light weight, high speed applications. These small brushless motors should be ideal for parkflyers and when geared correctly will really rock on larger planes. Vinnie is out flying a 400F in his Dandy Sport right now.

Take a look at our web page for price and performance data. The web page is a "work in progress" and will see infomation added on a regular basis. Email us via the web page if you have any questions.

Hugh Mason and Vinnie Finn

www.JustGoFly.com

[Matthew Cotten]

OK guys,nice motors.Lets hear some dirrect drive prop and amp numbers if possible.Anyone know?Matt

[highflier]

Outrunners? Gear drive? Are these truely outrunners, I have not seen outrunners that are recomended for gear drive units.

Highflier

[Matthew Cotten]

A razor 400 is 3700 KV so these are very much a dirrect drive motor I think.Probably run a 5x5 carbon fiber zagi prop well on 3cell.

[ScienceGuy]

The 300DF spins a 7" by 3.5" Gws hyperdrive nicely at 2S voltages. Pitch speed is over 30mph. Data should be available on our web page soon. The 1300Kv 400T is the real direct drive guy.

Hugh

[Vindicator!]

I'm posting the Direct Drive info in 10 minutes.

They may well be good for direct drive. The planes I fly are pretty big, although we plan on getting some direct drive pushers for jets and such. I just flew a 400F in a MPI ACC347 Speed 400 GearBox with a 3:1 gear and a 10x5e apc prop. I pushed the throttle up to 3/4 a tilted the plane 45 degrees and gave it a gentle underhand toss. She rose nicely - I push it verticle and she kept going. Man I love having this much power. I don't mind the gearing, except for the noise. I removed a Mega 16/15/7 from my Dandy Sport for this 400F. The lower weight makes it fly so much nicer. I can climb on 25% throttle.

Here is a picture of my Dandy with the 400F Motor. I cut up the fuselage to fit the Mega. I put Kevlar in the front end - which I'm not yet sure is worth it.

I'm going to JustGoFly (http://www.JustGoFly.com).

Vinnie

[rtideas]

Got any numbers we can punch into MotoCalc?

rt

[retiredVTT]

..that 400T (direct) with the lower KV sounds like a winner for $50.00

..will you have it available soon..?

Bill

[chopped_d]

sent an order for 2 of the 400f's

[Vindicator!]

sent an order for 2 of the 400f's

Chopped/Derek - we got your order. It will be going out tomorrow !

I'm going to JustGoFly (http://www.JustGoFly.com).

Vinnie

[ScienceGuy]

Bill,

We should be stocking the 400T later this spring. We are just finishing up our testing phase with these motors and will be prepared to give good advice about them before we ship any.

Contact us directly for more information.

Hugh and Vinnie

www.JustGoFly.com

[Vindicator!]

Direct Drive data updated on the 300DF page. (Sorry no direct link given since we will be moving the site soon).

I'm going to JustGoFly (http://www.JustGoFly.com).

Vinnie

[srogers316292]

Which one of these motors do you recommend for a Dandy. I really want to go brushless and you guys seem to have all the specs on the brushless motors.

I'm ready to buy as soon as I know I'm getting the right motor.

[Vindicator!]

Which one of these motors do you recommend for a Dandy. I really want to go brushless and you guys seem to have all the specs on the brushless motors.

I'm ready to buy as soon as I know I'm getting the right motor.

I've flown the 400F in the Dandy Sport, and it is a major powerhouse with the MPI ACC Gearbox. I put a different motor mount in the front of my fuse. So I'll have to measure the clearance of the normal 10x10mm Dandy motor mount and see if the 400F or 300DF both work. Regardless the 300DF brushless is much more powerful than the 350C. We should have numbers comparing the two shortly.

The 350C brush motor is 46 grams without a gearbox.
The 300DF brushless motor is just shy of 30 grams without a gearbox, and runs in a 400 size gearbox.

The specs comparing the gearbox weights don't make sense, since if I compare the weight of the Power System of the 350C and the motor of the 350C to find the gearbox weight. It shows the 350C gearbox at 17 grams, and the 400 gearbox at 15 grams.

The 300DF is 10mm shorter than the 400F. But the 400DF is still shorter than the GWS 300C brush motor. So the both motors should fit in the fuselage. I will load a 300DF this weekend, and see how it performs. I have the 400F in there now, and love it.

When I went from the Mega 16/15/7 to the 400F the reduced weight really brought the low end speed of the Dandy down. I love the fact that the Dandy slows down so nicely. Add weight and you have to run her faster. So the 300 DF weighing less than the 350C and producing significantly more power might just be the ticket.

Make sure to check your CG, since you might need to shift things forward to get the balance point correct for the lighter motor.

Since both the 350C and the 400DF are the same weight 46g. I just popped it in and flew. I actually held it underhand - went 1/2 throttle and let it go at a 45 degree angle.

It depends on how you like to fly I guess. The 300DF is $3 less expensive, smaller, and 16 grams lighter than the 400F. But on the 400F you have a higher top end speed or more torque, depending on how you gear and prop the plane.

I hope this doesn't confuse you too much. I know I'm going back and forth on this, only because I have flown the 400F for a short while. We have done extensive bench tests and have posted all the data for these motors. We will post videos and more comparisons with popular motors shortly.

Hey - we're so confident that this is such a good motor that a School Science Teacher (Hugh Mason) and Computer Programmer (Vinnie Finn) have gotten together to sell it exclusively on EZone. We are not leaving our day jobs to sell RC Motors, but can afford to offer these at low prices. I get a break from programming device drivers for Windows, and am learning Web Programming and Hugh gets to feed his appetite to scientifically analyze the motors. We've looked at alot of different motors, and these come out on top.

I'll post more info when we have it. I'm going to JustGoFly (http://www.JustGoFly.com).


Vinnie

[Vindicator!]

I've been flying the Dandy Sport with this new motor for the last few nights. Well last night was 20+mph winds so I could only stare longly out the window. But the 400DF makes the Dandy a 3D beauty, I can take off by just letting go of the plane, and it goes straight up. The light weight motor enables the plane to slow down like it was designed to do. But if you don't need that much power and even less weight - try the 300DF.

Vinnie

[chopped_d]

i got my 400f's in yesterday and gonna try one out in my formosa as soon as i can.

[dr.E]

Interesting light gearbox approach that can be adapted to this motor

[Vindicator!]

Dr. E - do you have a photo of the back of that gearbox. That is very cool ! Is it your creation or did you purchase it somewhere ?

Need time to JustGoFly (http://www.JustGoFly.com)

Vinnie

[dr.E]

The gear box is actually made by Mega for their smaller brushless motor. It is by far the smallest and lightest gearbox out there.

[ScienceGuy]

dr.E,

Your motors should arrive today if Priority Mail does its normal great service. Take a look at the data Dr. Kiwi generated. It's over on the power systems forum. He has a better supply of small direct drive props than we do. I must say that our thrust stand is somewhat prettier;) I doubt that the 5 coats of polyurethane improve its validity. The dangling wires in this photo must be a total drag too.

Hope you get a chance to "JustGoFly" one of the motors in the near future.

Hugh

[Vindicator!]

I'm off with the Dandy with a 400F and 3:1 pinion in there for some 3D testing. I can't bribe my kids to video tape their dear old dad flying. Maybe I should punish them and make them come flying with me :rolleyes:

More in a bit - I want to see if the 400F makes the Dandy a 3D beast.

Vinnie

[Vindicator!]

Flew the 400F with an MPI ACC347 metal gearbox. It needs a bigger prop than the 10x5 I fed it on a 3:1 gearbox. It flew nice and slow, climbed - but I couldn't get any serious top end speed out of it.

We've ordered gearboxs from http://www.cl-i-max.com/ for testing.

A little windy to JustGoFly (http://www.justgofly.com)

Vinnie

[Bandikoi]

Hugh,
Received the 2 motors in fine shape. I love blue. Now to try them out on something.
Thanks
Chuck

[ScienceGuy]

Chuck,

Its good to hear that they made it there quickly. Priority mail is really a great shipping method. If you get a chance take a look at Dr. Kiwi's data on the 300DFs. Over 600 grams of thrust with a gearbox an a super little sub-30 gram motor. We are really excited about how well these motors will interface with so many aircraft just waiting for a "brushless upgrade"

I've just put one of the AirCraft World Aluminum shafts in a GWS 400c gearbox. The whole unit including the 300DF, Deans micro connector, pinion, and wobbly prop adapter only weigh 47.8 grams total. Now that's a light geared brushless at a great price.

Hope you have lots of time to JustGoFly (http://www.JustGoFly.com)

[danielsjang]

how about this on a SS?

[ScienceGuy]

This would have to be a great SlowStik combination. Huge grams of thrust on low amps, light weight, flexability to gear for different missions and inexpensive. If my local supplier wasn't sold out of SS's at this time we would be using one as a test vehicle. Who is a good online source for them anyway?

We would like to JustGoFly (http://www.JustGoFly.com) one with the 300DF as soon as possible.

Hugh

[NeuronBasher]

All E RC (http://www.allerc.com/) and Buy GWS / Todd's Models (http://www.buygws.com/kits.htm) both say they have them in stock. I've ordered from both in the past and had great service from both of them. Parkflyer Motors (http://www.parkflyermotors.com/) carries them as well, but appears to be backordered on Slow Stick kits right now.

[ScienceGuy]

Thanks for the reply on the SS. I will order one this weekend and use it as one of our "test beds". It will be nice to see some vertical performance.

Hugh

[Vindicator!]

400T's now in stock !

Check out video of some serious power using a 400T on a Dandy Sport at :

http://www.justgofly.rchomepage.com/Vids/JustGoFly%20400T%20Maiden%20on%20a%20Dandy%20Sport %205m18s.avi

It's 32 Meg - so you might want to Right Click Link and save to hard disk. Otherwise it could take a few minutes to load.

Vinnie

[newbiemike]

I would like to get the 300DF for my slow stick. Does the motor come with the pinion gear? Also, what size prop would you recommend. I intend on using a 2s2p lipo. Thanks

[Vindicator!]

I would like to get the 300DF for my slow stick. Does the motor come with the pinion gear? Also, what size prop would you recommend. I intend on using a 2s2p lipo. Thanks

Mike,
Sorry we don't provide a pinion gear, there are just too many to choose from. The prop size depends on the pinion you use. We've bench tested the 4.5 pinion on 9,10,11 and 12 inch props with ranges in thrust from 2S - 3.3ozs at 1.67 amps to 3S - 18.3 oz's at 6.5 amps 3S. This seems like a pretty good pinion for the 300df. Check out web site for the full list of tests.

The axle is 2.3mm axle - standard size.
http://www.JustGoFly.com/300DF-180x120-Animated.gif

We didn't really like the pinkish 300df, so we sell blue.

Vinnie

[ScienceGuy]

newbiemike,


I just completed testing with a 3.4:1 ratio GWS 400c gearbox and found that the 11" by 7" GWS Hyperdrive prop & 11" by 4.7 Slow flyer props both worked especially well for great static thrust. The data isn't on our web page yet but we're talking about over 16 ounces of thrust at a 6 amp draw and and 3-S lipo voltages. The hyperdrive prop develops a higher pitchspeed and is more durable. The 11" by 3.8" APC slowflyer is also a great choice with this ratio if you're looking for slow cruise but huge thrust.

As for pinions, if you puchase the whole gearbox assembly from AirCraft World you will receive the pinion along with the rest of the gearbox assembly. See our web site for a link to the gearboxes. I just love this motor!!!!!

Edit time- I just noticed you mentioned 2S not 3S. The hot set up here may be the 12" by 3.8" APC Slow Flyer for very slow stuff or 11" by 7" hyperdrive for more speed.

Hope to have a chance to JustGoFly (http://www.JustGoFly.com) a Slowstik very soon with this setup.

Hugh

[Vindicator!]

Gents,

I spent the morning moving our web site, but am not nearly done yet. The 300df data for the 3.4 gear ratio can be found here: (Still under construction - so bear with me)

http://justgofly.rchomepage.com/tech300df_3_4x1.htm

If you want to see the rest of the data - please look on our domain name, it will automagically be moved when I stop goofing off an finish the move.


Vinnie
Thanks for the day off :rolleyes:

[gns30]

Do you think one of these would work on a micro heli? I was looking at the 300 for one, thanks!

[Vindicator!]

All those folks that previously ordered a 300df should be receiving a new bell and 2.3 mm axle from us free of charge. Hugh put them in the mail this morning. Just slide off the blue bell and place the Red one in it's place (no tools required).

Please keep the blue 3 mm bell/axle as a thank you for your patience in waiting for the 2.3mm bell/axle.

gns30 - check out the specs on our web site - I'm sure if you gear it right you can get it working well on a Heli. There is a nice long thread going in the Power Forum on these motors. Everyone who has received them are really enjoying them. We have had no complaints - well with the exception of the 300df originally having the wrong axle.

Send us your requirements for size and kV and we'll see if we have something not on the market yet that is more appropriate for a heli.

Vinnie Finn and Hugh Mason

[jeffb189]

Sent E mail through your web site & I got a message back that
your E mail address is not working.
Jeff

[Vindicator!]

Jeff - what on our web site did you click on ? I will check the links to find out where I messed up.

Please contact me directly - vfinn@rochester.rr.com

We have 300DF, 400F and 400T in stock.

Fly my PT-17 into the ground last night. Had a 400T w 8x4.3 GWS prop and was trying to learn Knife edge. I did learn alot - one thing I learned was not to get so confident that I think I can knife edge 20 feet off the ground :eek: Well at least it didn't have far to fall. She'll be flying again tonight. I wanna try the 400f geared and a huge prop
Vinnie

[Slotmachine]

Vinnie- received new rotor and shaft , 2.3mm for the 300 df today thnx. The 400 is quite good I have it in my E Starter right now and it is super efficient-- 14+ minutes flight time with Thunder Power 3S 830 mah pack, using C gearing and GWS 1080 prop.

I will likely be going to B gearing soon.

THNX
Joe R.

[Vindicator!]

Check out the video of my Stearman PT-17 running with a 400T motor DD 8x4.3 prop, 3S 1500 Kokam LiPo's. Man it has turned the plane I hated to fly, into my favorite plane.

http://www.justgofly.rchomepage.com/Vids/Stearman%20PT-17%20320x240%2015%20%20fps%20with%20music.avi

Also 400T data has been updated on our web site.

Vinnie

[MailOrderGuy]

What equip. did you use to get those numbers for the 400T?

[Vindicator!]

Hugh, our resident scientist, got those numbers from his thrust test station. We have videos proving the calibration of the machine. If you'd like me to post them and can read MOV formatted videos (apple format) - I certainly will.

Here is a picture of his test station:
http://home.rochester.rr.com/vfinn/JustGoFly/photo_album_files/Photos/100_2224%20(web).jpg

I have the 400T in a 16 oz plane (Dandy Sport) and on a 8x4.3 and 8x6 prop can go verticle from a stand still. Check out the video.

It's 32 megabytes - so you might want to download it first:

http://www.justgofly.rchomepage.com/Vids/JustGoFly%20400T%20Maiden%20on%20a%20Dandy%20Sport %205m18s.avi

Vinnie

[MailOrderGuy]

Have you tried the GWS 9x4.7 on the 3S1P Kokam 1500 yet?
How about the 8x4.3 on the 3S too?
Those are the slowflyer props.

[Vindicator!]

Have you tried the GWS 9x4.7 on the 3S1P Kokam 1500 yet?
How about the 8x4.3 on the 3S too?
Those are the slowflyer props.

Yes - I love the Kokam 3s1p Kokam 1500's. The prop I use is the 8x4.3 and is the one I prefer. Any larger and the plane flys faster but pulls more amps. a 9x4.7 would be spectacular but would require you to do throttle management to keep from pulling >10 amps. The motor can handle it, and so can the Kokam LiPo's - but both would heat up and eventually you would damage one or both. I've been beating on my plane and am doing alot of what I tell people not to do, to see how long I can go before I burn out either the LiPo or the 400T. So far I have about 20 hours on the 400T and it is performing very well. I'm concerned that I am over amping the Kokam's for too long though - they are coming in very hot. I tried a 7x5, and it ran well - but was alot slower than the 8x4.3 and I found I was running at near full throttle. I prefer the 8x4.3 - which I run at 1/2 throttle and only go full throttle on verticle climbs. It climbs nicely at a fairly steep rate on 1/2 throttle. The Dandy video was done almost all at 1/2 throttle, except the take offs. If I want to run hot and very fast I go to 8x6. I think we may pull the 9 inch prop data from our web site since I think it exceeds the AMPS that are ideal. I didn't see a big increase in performance on the 9" prop, but did see a significant increase going from 8x4.3 to 8x6. Hugh is the expert in this area, so he may have a comment on this.

Vinnie

[MailOrderGuy]

I'm concerned that I am over amping the Kokam's for too long though - they are coming in very hot.
Vinnie

Are you talking about the 3S1P 1500 Kokam pack w/ the 8x4.3 prop?
That Lipo pack is rated at 12 amps cont., if its getting hot then you may be >10 amps. Your chart on the web-site says that prop should draw about 8-9 amps. Please clarify.

[ScienceGuy]

MailOrderGuy,

At this point the only test stand data that I've generated for the 400T has been with the GWS Hyperdrive props. My available testing time will increase dramatically next week after the school year ends. At that time I will have a chance to test many more props and hopefully find the “ultimate” combinations.

Hugh

[FASTBEN]

any of these good for potensky christian eagle?
ben

[Vindicator!]

Are you talking about the 3S1P 1500 Kokam pack w/ the 8x4.3 prop?
That Lipo pack is rated at 12 amps cont., if its getting hot then you may be >10 amps. Your chart on the web-site says that prop should draw about 8-9 amps. Please clarify.

3S1P Kokam 1500 LiPo - 8C, 12 Amps continuous 15 amp for upto 30 seconds - a great pack. Sorry - I re-read my last note and see my error. When I said "I am concerned I am over amping the Kokam's too long, they are coming in very hot" - I mean't when I run them with large props and try to burn out the motor. A 9 inch prop will over amp the Kokam's. Sorry for the confusion - a 8x4.3 runs beautifully and does not over amp Kokams or the motors. The chart is correct ! Sorry for the confusion.

I ran a buddies GeeBee with a 300DF motor today, geared 2:1 with a 10x5 prop and 3s2p Tannic 850's. I had to double up the batteries to get the weight of the plane correct - it was tail heavy. Oh man - I love that plane. It went 3D, and hovered then went straight up. It spins like a top when I do aileron turns. It runs very fast when I let it, and can hover with the nose up. I had a total blast and am definately going to build one for myself. he doesn't like fast planes, so we decided to gear it down a bit more, it was very fast and pulled 6 amps WOT on the 2:1 gearing.

[Vindicator!]

any of these good for potensky christian eagle?
ben

If this is the plane: http://hobby-lobby.com/eagle.htm - you betcha !
I suggest the 300DF geared 3:1. The GeeBee I flew today was 10.2 oz's and ran a 300DF in 2:1 gearing, pulled 6 amps on 2S1P light pack. I then added two 3S1P packs - Tannic 850's which must have moved the weight upto 12 oz's (sorry I didn't re-weigh it). But it flew very nicely, hovered and screamed when I leveled it out. I think a 3:1 will keep your amps down, prop size up 9,10, 11 or 12 inches and will definately go 3D. You'll save 16 grams of weight comparing the 300df (<30g) to 300 motor (46g).

Vinnie

[Bud Morrison]

Moving to vendors