Feb 12, 2013, 10:40 PM
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jcdfrd's Avatar
thanks fried
settings for the ice100 and bl32 would be low timing and 8 or 12khz pwm
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Feb 13, 2013, 12:32 AM
efflux RC's Avatar
Quote
Bad ass video on 7 cells. Pardon me while I doppler those passes tonight. I am also going to 7 cells on stock
power. Anyone have the Ice 100 settings for stock?

Edit: BTW.. that pilot is very good.
.................................................. .......



Friedclutch,

Do you have the ambient temperature at flight time for your doppler analysis?
Latest blog entry: Updated blog Oct 2014
Feb 13, 2013, 11:54 AM
Registered User
Quote:
Originally Posted by swps View Post
On my stock 7s (I've had 3 now) I've gone no heatsink, Tam's heatsink/CF Tailcone and a 28mm heat sink from Effluxrc. I can't tell the difference to be honest. I've run all three in the heat of summer and I've never had an issue.
I think in any case you need throttle management. Just realize that a 28mm motor isn't great from heat dispersion so even with a heatsink 7s is still stressing the motor. Fortunately, the E-flite motor is inexpensive and e-flite over engineers all their products so you should be good to go any way you decide.
7S sounds fine except...who sells a good, reliable 7S pack? And how do I balance charge it? I could sew together a 3S and 4S pack and have separate balance plugs and charging ports, but it'd be a mess and some hacking of the wires.
Feb 13, 2013, 12:08 PM
3DHOG
jcdfrd's Avatar
we use two packs 3s+4s and charge separate
Feb 13, 2013, 12:08 PM
Some Girls r Bigger thn Others
swps's Avatar
Quote:
Originally Posted by sothpaw View Post
7S sounds fine except...who sells a good, reliable 7S pack? And how do I balance charge it? I could sew together a 3S and 4S pack and have separate balance plugs and charging ports, but it'd be a mess and some hacking of the wires.
That's simple. A series connector and get a 3s and 4s or a 5s and a 2s set of packs. Ideally they would be of the same capacity, C rating and manufacturer. You can then charge each pack separately. Or if you want to spend some money on a new charger, my Hyperion i1420 will charge any combination of 2 packs up to a 14s pack. Or you can buy a 7s pack, Revolectrix would be my first choice but there are more and more becoming available, like Zippy Compacts. Then again you'd need a charger that is capable of charging a 7s pack, like the Hyperion.
Feb 13, 2013, 01:02 PM
Just having fun before I die!
BadLemon's Avatar
I have a question for the guys that have installed the Stumax 80mm unit what kind of speed do you get using a Stumax? I have the PNP 80mm with a Het 700-60-1735Kv motor. I'll be using an ice 100amp esc. I have several 4400mah 45c packs to make either a 6s or 7s packs other then that the rest of the Habu will be stock with retracts.
Feb 13, 2013, 01:18 PM
Hey Ya'll!! Watch THIS!!
Michael Paxton's Avatar
Quote:
Originally Posted by BadLemon View Post
I have a question for the guys that have installed the Stumax 80mm unit what kind of speed do you get using a Stumax? I have the PNP 80mm with a Het 700-60-1735Kv motor. I'll be using an ice 100amp esc. I have several 4400mah 45c packs to make either a 6s or 7s packs other then that the rest of the Habu will be stock with retracts.
I never could get a Doppler on my 12s Stumax 80. It had some kind of strange whistle which threw off the readings. (This could have been my rebuilt intakes. Don't know)
I'd say a good bit faster than stock. But that's a guess. i never flew stock.
I was at 3K watts at 70 amps on 12S.

After getting the fan balanced how I wanted, it flew very well and sounded good.
Feb 13, 2013, 01:28 PM
Hey Ya'll!! Watch THIS!!
Michael Paxton's Avatar
Here's a couple passes that got filmed. One on maiden, and one after rebuild and rebalancing fan.

https://www.rcgroups.com/forums/show...6#post24124586
Feb 13, 2013, 01:35 PM
Just having fun before I die!
BadLemon's Avatar
I guess it could be hard get get doppler on a quiet fan setup. so an onboard speed indicator or a radar gun would need to be used. I'm sure your setup is topping out better then a 2.5k watt setup what is your outlet diameter on the thrust tube?

Thanks for the input.
Feb 13, 2013, 01:43 PM
Hey Ya'll!! Watch THIS!!
Michael Paxton's Avatar
I had the thrust tube the same diameter as the fuses exit. Don't remember what that was. ???
Feb 13, 2013, 04:27 PM
efflux RC's Avatar
Quote:
Originally Posted by sothpaw View Post
7S sounds fine except...who sells a good, reliable 7S pack? And how do I balance charge it? I could sew together a 3S and 4S pack and have separate balance plugs and charging ports, but it'd be a mess and some hacking of the wires.
We use two packs in series for anything more that 6s, (7s-12s)
Latest blog entry: Updated blog Oct 2014
Feb 13, 2013, 05:02 PM
Registered User
Anyone knows what is the amp draw on a stock 7s setup?
Feb 13, 2013, 06:00 PM
3DHOG
jcdfrd's Avatar
Quote:
Originally Posted by whisperdancer View Post
Anyone knows what is the amp draw on a stock 7s setup?
let me check with Nick but I think its in the 80-90amp range

ok Nick has chimmed in...... 90-93amps 2300-2400watts 45,400rpm
Feb 13, 2013, 08:37 PM
Got Brushless?
Friedclutch's Avatar

Doppler temps


Friedclutch,

Do you have the ambient temperature at flight time for your doppler analysis?[/QUOTE]

At the beginning of the video the camera man states at the ambient temp is 55 deg f. I should have the readings ready tonight.
Last edited by Friedclutch; Feb 13, 2013 at 08:43 PM.
Feb 13, 2013, 08:46 PM
3DHOG
jcdfrd's Avatar
friedclutch
glad to see your paying attention


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