SMALL - espritmodel.com SMALL - Telemetry SMALL - Radio
Reply
Thread Tools
Old Aug 14, 2008, 06:54 PM
Registered User
Crazyrcer's Avatar
Pleasant Hill, Missouri
Joined Jun 2004
585 Posts
Quote:
Originally Posted by AirWarriorBelgy
. . . CD-rom sized BL motors that can produce 5 to 8 ounces of thrust are on the minimum order, 10 ounces of thrust could be considered overkill...but plenty of reserve power. And there are many candidates that fit into this category
I would bow down to the small Outrunner flyers to chime in here on what they prefer or like in this grouping of motors

you didn't say what its "C" rating was so I will assume a 15C pack) you could be very comfortable with any motor that draws under 10 to 12 amps for about 15 to 20 minutes of flight. . . .

I like using a gearbox so in a brushless set up that leads to the Feigao 12mm motors, I have the 36kv in a GWS ips GB with an "A" drive. . . .
My 2S LiPo is actually only rated for 8C continous (6.4A) and 12C burst (9.6A). It will probably be the main limiting factor for any power system for the TM.

I was originally going to stay with the stock IPS system, but the reports I read stated that it doesn't have much power and needs to be replaced quite often. Brushless would be a bonus, especially if I could get an inexspensive system. I would prefer an outrunner, but price is the biggest factor I'm looking at. Is this the motor you have? How is the power? What kind of amp draws do you see? What prop?

Thanks!!
Crazyrcer is offline Find More Posts by Crazyrcer
Reply With Quote
Sign up now
to remove ads between posts
Old Aug 14, 2008, 07:50 PM
Registered User
Pat Daily's Avatar
United States, VA, Chesterfield
Joined Mar 2001
5,389 Posts
Float flying!
Pat Daily is offline Find More Posts by Pat Daily
Reply With Quote
Old Aug 14, 2008, 08:09 PM
Registered User
taekwondo's Avatar
USA, FL, Orlando
Joined May 2003
7,977 Posts
Beautiful place to fly at!

Quote:
Originally Posted by Pat Daily
Float flying!
taekwondo is offline Find More Posts by taekwondo
Reply With Quote
Old Aug 14, 2008, 08:19 PM
Planes, Guitars and Cigars
Steve_A_Reno's Avatar
Joined May 2002
3,171 Posts
I use a hextronic 24grm Brusless motor and a 9.47 prop. I uses the CSRC 2s 800 mah packs. Same ones you have. Never need to go above 1/2 throttle and at least 20-25 mins of flying. Batteries have never even gotten warm.
http://www.hobbycity.com/hobbycity/s...idProduct=2069
Steve_A_Reno is offline Find More Posts by Steve_A_Reno
Reply With Quote
Old Aug 14, 2008, 08:42 PM
Registered User
Columbus, GA
Joined Sep 2007
45 Posts
Quote:
Originally Posted by Steve_A_Reno
I use a hextronic 24grm Brusless motor and a 9.47 prop. I uses the CSRC 2s 800 mah packs. Same ones you have. Never need to go above 1/2 throttle and at least 20-25 mins of flying. Batteries have never even gotten warm.
http://www.hobbycity.com/hobbycity/s...idProduct=2069

Newbie here, do you use this as a direct drive? how do you mount it?

Thanks,

Willinathen
willinathen is offline Find More Posts by willinathen
Reply With Quote
Old Aug 14, 2008, 08:51 PM
Planes, Guitars and Cigars
Steve_A_Reno's Avatar
Joined May 2002
3,171 Posts
Quote:
Originally Posted by willinathen
Newbie here, do you use this as a direct drive? how do you mount it?

Thanks,

Willinathen
It is direct drive.
I use the alloy stick mount. I replaced my stock moth wood stick with the larger gws stick (Don't know the exact size) or you can build up the stock stick with some ply. Fit perfectly and I did not need to modify my cowl.

http://www.hobbycity.com/hobbycity/s...idProduct=3613
Steve_A_Reno is offline Find More Posts by Steve_A_Reno
Reply With Quote
Old Aug 14, 2008, 09:44 PM
Captain Carnage says......
AirWarriorBelgy's Avatar
Seminole (St Pete.), Florida/ Seminole Crash Fest
Joined Jun 2002
5,329 Posts
Quote:
Originally Posted by Crazyrcer
My 2S LiPo is actually only rated for 8C continous (6.4A) and 12C burst (9.6A). It will probably be the main limiting factor for any power system for the TM.

I was originally going to stay with the stock IPS system, but the reports I read stated that it doesn't have much power and needs to be replaced quite often. Brushless would be a bonus, especially if I could get an inexspensive system. I would prefer an outrunner, but price is the biggest factor I'm looking at. Is this the motor you have? How is the power? What kind of amp draws do you see? What prop?

Thanks!!
yup that is the one I am using in the stock IPS "A" gearbox- 8x6 prop 2 cell TP910 40 minutes of flight at half throttle....will climb steeply but not quite 45 degrees, but will maintain inverted level flight

probably drawing about 2 to 3 amps max.

Chuck
AirWarriorBelgy is offline Find More Posts by AirWarriorBelgy
Reply With Quote
Old Aug 14, 2008, 09:48 PM
Elfi Flyer
Doug Sipprell's Avatar
Rock Hill, SC
Joined Oct 2002
5,553 Posts
Quote:
Originally Posted by Crazyrcer
I've been reading some of the other TM threads looking for motor recommendations, but haven't really found anything that would work. I am trying to work around the gear that I have already (GWS 5A brushed ESC, CSRC 2S 800mAh LiPo with 6.4A max cont. discharge). The stock IPS system sounds like it would work with these components, but I am concerned about power and motor life. Are there any good motors (brushed or brushless) for the TM that will be able to use my CSRC battery?
Thanks!
Chuck has provided you with some very good advice. If you wish to stay with the stock "A" gearbox and simply change out the stock IPS motor, it's hard to beat the convenience of the Feigao 12mm brushless motor or the Medussa. It is my understanding the Medussa is probably the stronger of the two. I installed a Feigao B/L, the same as what Chuck has recommended, in my Moth, stock gearbox, 9x7 orange prop, and I use a 1320 mAh TP 2-cell LiPoly pack. A 910 mAh pack would actually be better, little less weight. I have standardized on the 1320 packs as they fit other models in the fleet.
Keep in mind a 2-cell LiPoly pack, be it 910 mAh or 1320 mAh, is NOT going to make your Moth go vertical and one step short of ballistic. The 2-cell pack has modest voltage, so the amps are more reasonable, - and - the pack will hold the voltage better than an 8 cell NiMH. With a 2-cell Lipo, you will still get 25-30 minute flights without coming even close to running down the Lipo pack to near 6 volts. Unless you are running an outrunner (the Feigao and Medussa 12mm motors are in-runners), I personally can't see the reason for using a 3-cell LiPo pack. I use a CC Thunderbird 6 amp ESC and it is more than sufficient for my Moth's operation.

Welcome to the TM thread. Hope you can find solice here and......all the info you might need for flying your Moth!!

RD
Doug Sipprell is offline Find More Posts by Doug Sipprell
RCG Plus Member
Latest blog entry: Big Red Cadillac
Reply With Quote
Old Aug 15, 2008, 02:17 AM
Registered User
1toslope's Avatar
California
Joined Dec 2005
1,121 Posts
Quote:
Originally Posted by Pat Daily
Float flying!
Great pictures.
1toslope is offline Find More Posts by 1toslope
Reply With Quote
Old Aug 15, 2008, 06:02 AM
The figure "9" Specialist
aeronca's Avatar
A Barrier Island in New Jersey, USA
Joined Oct 2003
3,489 Posts
Quote:
Originally Posted by Crazyrcer
My 2S LiPo is actually only rated for 8C continous (6.4A) and 12C burst (9.6A). It will probably be the main limiting factor for any power system for the TM.

I was originally going to stay with the stock IPS system, but the reports I read stated that it doesn't have much power and needs to be replaced quite often. Brushless would be a bonus, especially if I could get an inexspensive system. I would prefer an outrunner, but price is the biggest factor I'm looking at. Is this the motor you have? How is the power? What kind of amp draws do you see? What prop?

Thanks!!
FWIW - I presently have two flying TM's. One is a stock-powered IPS, and one has the Feigao 12mm brushless motor in the stock gearbox. My stock-powered Pico TM has been flying for nearly 5 years and is on its second stock motor. It is my favorite of the two because it was the first one I built. The one with the Feigao 12mm brushless motor was built 4 years ago just to check out the "new" brushless trend, and it flies fine with plenty of power to spare.

The stock IPS power package is more than adequate for the airframe of the TM and I got well over 3 years (and many, many, many flights) out of the original motor, so I would never categorize it as not, "...having much power and needing to be replaced quite often." Of course, there are exceptions since these little brushed motors are knocked out by the millions with little to no concern, or quality control. I have two more TM's "in the box", and when I get around to building them I intend to keep 'em bone stock. I just don't see the need to go brushless on such a great, slow, relaxing flyer.

Aeronca
aeronca is offline Find More Posts by aeronca
Reply With Quote
Old Aug 15, 2008, 07:00 AM
Account closed
Joined Oct 2002
35,016 Posts
Quote:
Originally Posted by aeronca
FWIW - I presently have two flying TM's. One is a stock-powered IPS, and one has the Feigao 12mm brushless motor in the stock gearbox. My stock-powered Pico TM has been flying for nearly 5 years and is on its second stock motor. It is my favorite of the two because it was the first one I built. The one with the Feigao 12mm brushless motor was built 4 years ago just to check out the "new" brushless trend, and it flies fine with plenty of power to spare.

The stock IPS power package is more than adequate for the airframe of the TM and I got well over 3 years (and many, many, many flights) out of the original motor, so I would never categorize it as not, "...having much power and needing to be replaced quite often." Of course, there are exceptions since these little brushed motors are knocked out by the millions with little to no concern, or quality control. I have two more TM's "in the box", and when I get around to building them I intend to keep 'em bone stock. I just don't see the need to go brushless on such a great, slow, relaxing flyer.

Aeronca
I totally agree and very good write-up expression for the Brushed geared power system that comes with this little gem! Scale effects are great just like it came out of the box!
guapoman2000 is offline Find More Posts by guapoman2000
Reply With Quote
Old Aug 15, 2008, 08:37 AM
Registered User
kdahlhaus's Avatar
United States, OH, Westlake
Joined Mar 2002
4,543 Posts
I just upgraded to brushless. It sounds dumb, but I don't enjoy the plane as much. I think it lost character or something.
kdahlhaus is online now Find More Posts by kdahlhaus
Reply With Quote
Old Aug 15, 2008, 09:27 AM
Registered User
Pat Daily's Avatar
United States, VA, Chesterfield
Joined Mar 2001
5,389 Posts
My float moth is powered with an old PJS 300 Indoor brushless motor with a 9 x 4.7 inch prop with 2 lipos. It fllies very much like my TM with wheels and the stock motor with just a bit more power to get off the water. I just ordered a couple of the Blue Wonder brushless motors for some new TMs that I will build soon. I hope they still have the appropriate character. If they have too much power they won't be as much fun. Part of the fun of flying the stock version is the very gentle climb and long take off runs. My Dumas Pietenpol is the same way.
Pat Daily is offline Find More Posts by Pat Daily
Reply With Quote
Old Aug 15, 2008, 09:34 AM
Planes, Guitars and Cigars
Steve_A_Reno's Avatar
Joined May 2002
3,171 Posts
I enjoy flying my TM more now on the BL motor. I went through 2 stock IPS motors. Each one eventually barely able to keep my moth in the air. I fly the moth scale. Slow and relaxing. But having the xtra power to save my moth if the wind kicks up is very reassuring.
Steve_A_Reno is offline Find More Posts by Steve_A_Reno
Reply With Quote
Old Aug 15, 2008, 09:34 AM
I even seen a house fly!
LedKitty's Avatar
Montreal!
Joined Oct 2003
2,709 Posts
That's one thing I don't get about people talking about "too much power". Yes, there's too much power because the motor weighs too much so you need more power to lift the bird and can't float around like you used to, then there's ok that's just silly too much power, but if the motor is just as light, that throttle stick has all these wonderful positions between open and closed so I'm not really sure what the problem is

K.
LedKitty is offline Find More Posts by LedKitty
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion GWS Tiger Moth thread - Part 28 Ozprey Parkflyers 2388 Apr 28, 2006 02:10 AM
GWS Tiger Moth story - Part 9 Martin Hunter Parkflyers 547 Jan 01, 2004 08:32 PM
GWS Tiger Moth Story - Part 9 The Enemy Parkflyers 2 Dec 18, 2003 10:21 PM
GWS Tiger Moth Story - Part 8 The Enemy Parkflyers 566 Dec 18, 2003 10:11 PM
GWS Tiger Moth Story - Part 7 The Enemy Parkflyers 521 Dec 05, 2003 12:01 AM