RR Rated M For Mature
HOME   rrTV-PHOTO   GALLERIES   MY GALLERY   HELP-FAQ
myHOME PM pmRR MEMBERS 867 ONLINE 18 EVENTS SEARCH REGISTER  START HERE
 
5 pages [ <<    <     2      3     ( 4 )     5     NEXT    >> ]1634 viewsPOST REPLY
E-flite . Fast Lad Performance . Ace Hobby

.
.
e-Electric Conversions > 700E Flight Times???
 
 
roc
Heliman
Location: Hongkong

My Posts This: Topic  Forum		hi

motor hotter---means some more power changed to heat,means lost more power,this is sure!
So in this situation,how to get more power?
Peakeff. is just one data of describing performance of motor !
10-27-2009 05:18 PM
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE  
 
 
MrMel
rrProfessor
Location: Lidingo, Sweden (GMT+1)

My Posts This: Topic  Forum		Yup, that's the problem, to get the power out and not generate heat, but thing is, one motor might be the optimal for one setup, and not the next, even very close in size etc.

But running cold isnt saying it output power, like the ones mentioned above, sometimes it just limits the output instead.

Even on the same heli, one motor might be tip-top for a setup, then you switch blades, the change of "agreesiveness" of the blades, makes another motor shine instead.

Only one thing is certain, there is no holy grail, free lunch or whatever you call it, power out costs power in, you cant have both long flighttimes, and the most powerful motor.

My site: http://heli.dacsa.net
10-27-2009 05:20 PM
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
egiraldo911
New Heliman
Location: San Antonio, TX

My Posts This: Topic  Forum		Dr. Ben, I will let you know how much I put on the lipos next time I fly it. It has only been my third flight on this conversion. It has been raining a bit here in Texas and have not been able to fly more. The only thing I can tell you is the voltage per cell which is 3.78V/cell by the end of the flight. I will also put a video together with my style of flying. I really don't do too much 3D other than tic-tocs, rolls, and flips. I will ask a friend that is good at 3D to fly it and see the difference in flight time with harder 3D.
My flight time right now is 7 minutes from spool up to landing. I am not using a governor and I tached the HS at 0 deg. pitch on the ground and it is at 2050. Once in the air and loaded it went down to 1900-1950 rmp. It probably went down into the 1800's doing tic-tocs, I could hear it bogging a little bit. I will use the governor next time and also compared the difference. I really need the governor.
I will post the results in a couple of days.
10-27-2009 05:27 PM
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
roc
Heliman
Location: Hongkong

My Posts This: Topic  Forum		good

Quote 
Only one thing is certain, there is no holy grail, free lunch or whatever you call it, power out costs power in

this is very good sentence,i like it!
10-27-2009 05:51 PM
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE  
 
 
Band1086
Senior Heliman
Location: Kennewick, Wa. USA

My Posts This: Topic  Forum		Well, it sounds like I may have my optimal set up then. With every change I do I'm always hoping to get more flight time. But the Scorpion coupled with the Jeti Spin 99 on "3D constant head speed"
gov mode have both kick azz power and 6 min times flying pretty hard.
I have a 117T Fad-Heli mod 1 black delrin main gear and 10T MA pinion
with upper bearing support. When I load it hard, lots of coll. & cyclic together, I can hear it stressing the main gear, but the motor simply WILL NOT give up and bog. I'm am wearing that HD fad main out pretty fast though. Also, I've got V-Bar 4.0 and I'm testing TP 45C and Hyp. VX batts. back to back, at 2000 HS and the HS holds extremely well. Very fun helicopter to fly...but I'm still going to try the Neu on it when it comes in...6.5 mins...I can only hope!
10-27-2009 06:08 PM
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
MrMel
rrProfessor
Location: Lidingo, Sweden (GMT+1)

My Posts This: Topic  Forum		When it comes down to flighttime, there is a few other things to consider too.

- Pack, TP45C will run longer then a old tired pack, it holds higher voltage, which results in lower ampdraw, and yes, it makes quite alot of difference.

- Blades, different blade have different draw, huge difference from for sample Maniacs to Sab Red Devils, even though both have good bite.

- Ambient temp, its quite a huge factor too on voltage the packs hold, and therefor the avg ampdraw, for me flying in the winter its a big big difference.

- RPM, as already discussed, higher rpm is a currenthog by itself.

- Good connectors, a poor connection will not only run hot, but steal alot of voltage, just cleaning the connectors can be a huge lift. Ive seen as much as 1v difference on a 10s pack just by crappy connectors, still they didnt melt, just ran with less power.

My site: http://heli.dacsa.net
10-27-2009 06:14 PM
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
Band1086
Senior Heliman
Location: Kennewick, Wa. USA

My Posts This: Topic  Forum		Very good post, thank you. I'm running 710 Radix on this particular heli with +-12. I've noticed though some guys are running a single deans connector on their ESC from two big packs on 90 size machines. Deans says their conn. is good to 80A, so by using two in series on the esc, they should never even get warm hardly. That's what I do on all my heli's.
10-27-2009 06:33 PM
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
duke666
Veteran
Location: Hampshire, UK

My Posts This: Topic  Forum		BAND1086, It may be worth you trying some EC5 connectors:

http://rc.runryder.com/helicopter/t...?top=1256667179

Any chance you could post a pic of your MA pinion and support?

Duke

OOOPPS............
10-27-2009 07:15 PM
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   HOMEPAGE   GALLERY
 
 
Band1086
Senior Heliman
Location: Kennewick, Wa. USA

My Posts This: Topic  Forum		Deans have worked perfectly for me for years, never an issue. Some of the knock offs are lousy though, esp the ones I got from readyHeli, 10 pairs for $10...should have known. Anyway, I may try some EC5's sometime. I'll try to post a pic or two of my MA pin set-up. It's similar to the AuroraE. They used to make a lot of after market stuff for the MA heli's. Pretty sure that's where they got the idea. However they took it to the next level.
10-27-2009 07:33 PM
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
MrMel
rrProfessor
Location: Lidingo, Sweden (GMT+1)

My Posts This: Topic  Forum		Im pretty sure Scorpion is coming out with a longer shaft soon also, to support 3rd bearings.

My site: http://heli.dacsa.net
10-27-2009 07:41 PM
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
duke666
Veteran
Location: Hampshire, UK

My Posts This: Topic  Forum
Quote 
Im pretty sure Scorpion is coming out with a longer shaft soon also, to support 3rd bearings.

Glad they have finally noted it's needed to help support the pinion and share the load with the other motor bearings.

Duke

OOOPPS............
10-27-2009 07:52 PM
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   HOMEPAGE   GALLERY
 
 
MrMel
rrProfessor
Location: Lidingo, Sweden (GMT+1)

My Posts This: Topic  Forum		Easier to cut off one that is too long then extend the one that is too short

My site: http://heli.dacsa.net
10-27-2009 07:56 PM
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
duke666
Veteran
Location: Hampshire, UK

My Posts This: Topic  Forum

OOOPPS............
10-27-2009 08:15 PM
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   HOMEPAGE   GALLERY
 
 
Band1086
Senior Heliman
Location: Kennewick, Wa. USA

My Posts This: Topic  Forum		The Neu I have on order is supposedly comming with a 32X6mm shaft.
They said they've had a lot of requests for an extended shaft length along with 6mm. Before it was approx. 19-20X5mm. Can't remember what my last Scorp. was.
10-27-2009 08:48 PM
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
helicraze
Elite Veteran
Location: Victoria - Australia

My Posts This: Topic  Forum		I bought some 4035 shafts a while back in AU and they were all long
10-27-2009 09:51 PM
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE  
 
 
Dr.Ben
rrProfessor
Location: Richmond, VA, USA

My Posts This: Topic  Forum		Yep, Neu will absolutely supply long shaft motors with 6mm shafts.

Ben Minor

Representing
MRC Hirobo Helicopters and Team Futaba for Radios
Morgan Fuels
OS Engines
10-28-2009 01:41 AM
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE  
 
 
Band1086
Senior Heliman
Location: Kennewick, Wa. USA

My Posts This: Topic  Forum		How long were the 4035 shafts from the top bearing up?
10-28-2009 02:10 AM
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
helicraze
Elite Veteran
Location: Victoria - Australia

My Posts This: Topic  Forum		Not sure exactely, but about 10MM longer than stock.
10-28-2009 02:11 AM
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE  
 
 
Band1086
Senior Heliman
Location: Kennewick, Wa. USA

My Posts This: Topic  Forum		The second 560 I bought had a shaft like that.
10-28-2009 06:18 AM
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
Band1086
Senior Heliman
Location: Kennewick, Wa. USA

My Posts This: Topic  Forum		Duke,
Here is the pinion and upper support set up I'm using.



The collar and pinion are miniature aircraft. We can get 5 or 6mm collars but the pinion is always 6mm. Miniature puts 2 4mm set screws about 100-110 degrees apart. I had to put a third set screw in the middle on the opposite side in order to keep the set from wobbling on the motor shaft. If I didn't do this, I found that when I tightened the two that MA installed, it would wobble. So, with the third ss I could adjust using a dial indicator a get within a half a thousanth, putting the DI on the bearing installed on the pinion. Also the bearing is a slip fit on the top of the pinion, so I used green lock tight when installing it. I think I will knurl the bearing support on the next pinion as that should make it a press fit...much better in my opinion. Next, I did not like the stock plastic upper bearing support,
so I purchased a Micro Heli upgrade and machined it down to approx. a 1/4 in., flipped it over and slid the pre-assembled motor, motor mount, collar, pinion, and upper bearing up into the micro heli upper bearing support. Fits perfectly as long as the position of the collar on the motor shaft is the right heighth which should be tested before the DI is used. Then I aligned it with the main gear, tightened everything down and it runs very true. This set up is the best I've seen yet. It accomplishes several things at once!
10-28-2009 03:56 PM
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
5 pages [ <<    <     2      3     ( 4 )     5     NEXT    >> ]1634 viewsPOST REPLY
Esprit Model . Thunder Power RC . Mikado Modellhubschrauber

.
.
e-Electric Conversions > 700E Flight Times???
 Print TOPIC Advertisers 

Subscribe to This Topic

Monday, November 23 - 11:13 pm - Copyright © 2000 - 2009 runryder.com | email | link to rr | START HERE | NF