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Power Systems Talk about motors, ESC speed controllers, gear drives, propellers, power system simulators and all power system related topics

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View Poll Results: The power system I prefer most is:
Direct Drive Inrunner 5 4.13%
Direct Drive Outrunner 81 66.94%
Geared Inrunner 13 10.74%
Geared Outrunner 2 1.65%
I love them all the same 20 16.53%
Voters: 121. You may not vote on this poll

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Old 08-29-2005, 08:41 PM   #1
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Default Do you prefer direct drive or geared? A WattFlyer.com poll

So...what's your poison? Do you prefer direct drive power, outrunner power or geared?

Vote and chime in.

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Old 08-29-2005, 08:48 PM   #2
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I prefer direct, but it really depends on the application. I really like the sound of the GWS gearbox with the Himax motors, makes my Spit sound really good (nothing like the Merlin mind you).

Just depends on the application.

Mike
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Old 08-29-2005, 09:38 PM   #3
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Geared.
It gives you more prop and power options.
The only down side is fitting them in a cowl.
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Old 08-29-2005, 09:53 PM   #4
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3D and IMAC- Geared
Pattern- Direct Drive

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Old 08-29-2005, 11:13 PM   #5
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I like direct drive for the simplicity and low weight for my sport flying, but I also understand if you want to get the most power out a given size motor it should be wound with big low resistance wire. That is makes a high speed motor, and a gear box is needed to be able to spin a high effieiency (slow turning) prop.

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Old 08-30-2005, 01:35 AM   #6
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Originally Posted by admin
So...what's your poison? Do you prefer direct drive power or geared?

Vote and chime in.
You have direct drive, and geared, but you have left off an important option, that of outrunners. I have not seen any of them geared, but they seem to be giving geared units a real run for their money.

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Old 08-30-2005, 02:06 AM   #7
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I assumed Direct Drive was referring to outrunners. If not..then I rescend my vote and want to see people counting chads!


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Old 08-30-2005, 03:28 AM   #8
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Yes..direct drive is "outrunner"....one in the same

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Old 08-30-2005, 03:47 AM   #9
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Originally Posted by admin
Yes..direct drive is "outrunner"....one in the same

Start counting chads!
If DD means outrunner and Gear box means inrunner... Please disregard my vote and count me out of the discussion.

Outrunners are most often used DD and most gearboxes are used with inrunners, but all the combinations have there place and are being used.

My vote is to not mix the question of inrunner or outrunner in with this one on gearbox or no gearbox.

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Old 08-30-2005, 04:49 AM   #10
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bz1mcr - hey..you are correct...I need to add another option now! Slight skew until more votes pile in to create statistical significance override. Can't believe I missed that. Whew...long day!

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Old 08-30-2005, 05:08 AM   #11
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Outrunners keep getting better all the time. Simplicity, quiet and great power. Also no stripped gears or gear maintenance, just mount and fly. I have AXIs, Plettenbergs, Hyperions and Hackers in outrunners and all perform great.

Doug

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Old 08-30-2005, 03:12 PM   #12
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Direct drive = any motor without some kind of gear box. The prop is attached directly to the motor. It can include brushed and brushless motors, brushless are subdivided into outrunners and conventional (inrunners).

Geared = any device attached to the motor that turns the prop at some other rpm than the motor speed. They are used on brushed or conventional brushless. I don't recall of ever seening a geard outrunner set up.

My preferance - outrunners. I expect as the prices on these little jewels continute to drop they will replace the others in all but the low end entry level electrics.

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Old 08-30-2005, 04:19 PM   #13
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A belt-geared Torcman 685 'Monster' outrunner in a Klemm 35 built by Franz Schmidt.




Vriendelijke groeten Ron
• diy motor tips • Drive Calculator •
• diy motor group • Cumulus MFC •
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Old 08-30-2005, 07:59 PM   #14
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Thumbs down you gotta be kidding

geared, direct drive, and someone adds outrunner? :p
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Old 08-30-2005, 08:14 PM   #15
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Originally Posted by airflow
geared, direct drive, and someone adds outrunner? :p
A direct drive could be an inrunner or outrunner. The same inrunner motor could be used for a direct drive or geared system. I am assuming by direct drive they are referring to an inrunner as an outrunner is generally direct drive with a case that rotates for more torque..

Doug

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Old 08-30-2005, 08:26 PM   #16
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I like them both but it depends on the plane.I love geared on my 3d foamy planes but on like the IFO's and stuff direct drive(outrunners ) work better.Also on the wings Direct drives seem to be best. Good and bad about both I guess.
I think a new person would be better of with geared that way they dont bend or breck a shaft that they cant replace on there own.

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Old 08-30-2005, 09:34 PM   #17
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Geared; unless S400 pylon or EDF!
http://www.rcgroups.com/gallery/show...500&ppuser=497
http://www.rcgroups.com/forums/showp...84&postcount=5
http://www.rcgroups.com/forums/showp...51&postcount=2

http://www.rcgroups.com/forums/showthread.php?t=195745


The only DD conversion I’ve done was for Rick; and found that the outrunners folks would consider were too hot. Seems that you get big & heavy for a nice Kv @ the prop: 320 on 16R – still looking:

http://www.rcgroups.com/links/index.php?id=4485
http://www.rcgroups.com/forums/showthread.php?t=264085


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Old 08-31-2005, 12:11 AM   #18
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Actually...the poll is probably a bit flawed...it should have been

Direct drive outrunner
Direct drive inrunner
Geared outrunner
Geared inrunner

I think this would cover it?

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Old 08-31-2005, 02:05 AM   #19
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Thumbs down now you really got a poll

Direct drive outrunner
Direct drive inrunner
Geared outrunner
Geared inrunner
Maybe the poll should include NiCd, NiMh, LiPo ? or ... yes, work on it - a poll with at least 300 choices, ...
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Old 08-31-2005, 03:20 AM   #20
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Originally Posted by admin
So...what's your poison? Do you prefer direct drive power, outrunner power or geared?

Vote and chime in.
Love & have them all.

Brushed, brushless, inrunners, outrunners, direct, geared and belted.
 
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Old 01-06-2006, 03:50 PM   #21
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Question Elec Motor Poll

Can anyone post pictures of each type motor you are talking about ?
I new to this and need to see visuals
Bob
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Old 01-06-2006, 04:00 PM   #22
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Originally Posted by lshadow2005 View Post
Can anyone post pictures of each type motor you are talking about ?
I new to this and need to see visuals
Bob
Here you go.


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Old 01-06-2006, 04:10 PM   #23
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Thanks Mike I now know the difference
Do you have any pictures of different mount hardware for the DD and out runners other than stick mounts
Bob
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Old 01-06-2006, 04:39 PM   #24
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I run mostly Heli's all DD, but outrunner gets my vote.
Cool poll Marc!
Regards,
Jay

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These two dogs are always fighting a constant battle.
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Old 01-06-2006, 06:32 PM   #25
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Default Outrunner direct drive

Even tho geared helps with 3D (listen as much as watch), I prefer the reliabilty and low maintenance and quiet power of the outrunner direct drive.

And remember...
Wherever you go... There you are!

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