Change Sun 12 blade 90mm - Page 48 - RC Groups
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Dec 08, 2011, 07:46 PM
Official Boat Bum
Eddie P's Avatar
Quote:
Originally Posted by pavcon
+1

what the turbine producers trying to improve nad they consider as a mius is the spoolling time..
this might save a plane.. why try to simulate the cons of a system
-1

It's a personal taste issue. That's all. I've been doing it for years with no issues what so ever. Fast spool up for a turbine is 3.5 seconds. If you use 1 second servo slow you get really no lag at all and there is almost no issue for a novice, but the smooth effect and the lack of annoying instant dentist drill is GONE. 2 seconds takes some more experience, but it gets much smoother. For me, it's exactly what I want, so anyone considering it should not feel like they are on uncharted ground at all.
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Dec 08, 2011, 07:48 PM
Suspended Account
I saw someone tip stalling and crashing.. still waiting for that spool up.. it's not about taste.. ofcourse Idlike to have as closer to the turbine effect.. looks and sounds cool.. BUT.. it's a matter of safety here.
Dec 08, 2011, 07:59 PM
Official Boat Bum
Eddie P's Avatar
Quote:
Originally Posted by pavcon
I saw someone tip stalling and crashing.. still waiting for that spool up.. it's not about taste.. ofcourse Idlike to have as closer to the turbine effect.. looks and sounds cool.. BUT.. it's a matter of safety here.
I'll agree to disagree with this sidebar discussion. 2 seconds of spool up is from idle to max. This is so miniscule it's not worth arguing over, do what you want and I'll do what works for me. I've been doing this for years, it's a non issue as long as one knows how to fly. If one tip stalls from a lack of instant 100 percent power then the flying technique is so bad a tip stall would have happened sooner or later anyway. A stabilized, decently planned approach takes care of any of that nonsense. Instant power often causes more problems than it can solve.

If you want to talk safety, then there should be absolutely no flying what so ever due to possible radio glitches and no crossing the street due to possible instant death by auto and no going out side as you may get hit by a falling meteorite. You have to manage your risk. Flying a stabilized approach takes care of the need for instant power, a normal person can fly just fine with a minimal throttle smoothing program set in to help manage the dentist drill effect.

Back to EDF's.
Dec 08, 2011, 08:03 PM
3DHOG
jcdfrd's Avatar
Quote:
Originally Posted by pavcon
I saw someone tip stalling and crashing.. still waiting for that spool up.. it's not about taste.. ofcourse Idlike to have as closer to the turbine effect.. looks and sounds cool.. BUT.. it's a matter of safety here.
exactly it is safety, so as an edf'er trying to make the transition to turbine you setup your edf this way to get used to the slow spoolup and hopefully crash your edf learning the difference. it is much more unsafe to crash your turbine on the runway trying to learn
Dec 08, 2011, 08:08 PM
3DHOG
jcdfrd's Avatar
Quote:
Originally Posted by Eddie P
I'll agree to disagree with this sidebar discussion. 2 seconds of spool up is from idle to max. This is so miniscule it's not worth arguing over, do what you want and I'll do what works for me. I've been doing this for years, it's a non issue as long as one knows how to fly. If one tip stalls from a lack of instant 100 percent power then the flying technique is so bad a tip stall would have happened sooner or later anyway. A stabilized, decently planned approach takes care of any of that nonsense. Instant power often causes more problems than it can solve.

If you want to talk safety, then there should be absolutely no flying what so ever due to possible radio glitches and no crossing the street due to possible instant death by auto and no going out side as you may get hit by a falling meteorite. You have to manage your risk. Flying a stabilized approach takes care of the need for instant power, a normal person can fly just fine with a minimal throttle smoothing program set in to help manage the dentist drill effect.

Back to EDF's.
I completely agree and I love my delayed throttle and I'm not even trying to go to turbine.........yet
Last edited by jcdfrd; Dec 08, 2011 at 08:19 PM.
Dec 08, 2011, 08:09 PM
Suspended Account
Quote:
Originally Posted by jcdfrd
exactly it is safety, so as an edf'er trying to make the transition to turbine you setup your edf this way to get used to the slow spoolup and hopefully crash your edf learning the difference. it is much more unsafe to crash your turbine on the runway trying to learn
now that my $$$$ are low it's better not to crash anything..
Dec 08, 2011, 08:09 PM
Capt. Z
falcon5's Avatar
Well said Eddie P

+1
Dec 08, 2011, 08:26 PM
Hey Ya'll!! Watch THIS!!
Michael Paxton's Avatar
I'm thinking a safer way would be to make a -50% throttle mix that would let you manually spool up slowly and it could be on a switch so in flight you can turn it off!!
Just a thought...
Dec 08, 2011, 08:49 PM
3DHOG
jcdfrd's Avatar
Quote:
Originally Posted by Michael Paxton
I'm thinking a safer way would be to make a -50% throttle mix that would let you manually spool up slowly and it could be on a switch so in flight you can turn it off!!
Just a thought...
as Eddie said we are making much more of this than it deserves its not that big of deal, after a couple of flights you wont even realize its slower. remember its adjustable if you find you have too much delay then take some out it really just smooths out the throttle
Dec 08, 2011, 09:38 PM
Registered User
Flip Flop's Avatar
X-flight has a new vid of the CMP L-39 with the 12 blade on 6s.
L-39.wmv (2 min 59 sec)
Dec 08, 2011, 10:23 PM
RA-TA-MA-HAT-TA
munce31's Avatar
Sounds fantastic! Except the landing at the end loll
Dec 08, 2011, 10:28 PM
its TALON TIME!
corsair nut's Avatar
that looks way tail heavy...or way too much control throw.
Dec 08, 2011, 10:38 PM
Registered User
therealhiphop's Avatar
Quote:
Originally Posted by corsair nut
that looks way tail heavy...or way too much control throw.
My thoughts exactly when I saw the video Sounds fantastical though


Thanks for all the comments about delayed spool up. Good little conversation, and I appreciate both sides.

At least now I feel like I can make a more informed decision.
Dec 08, 2011, 11:40 PM
Registered User
Tumbler's Avatar
That sounds so awesome!

Quote:
Originally Posted by Flip Flop
X-flight has a new vid of the CMP L-39 with the 12 blade on 6s.http://www.youtube.com/watch?v=qXOui...layer_embedded
Dec 09, 2011, 04:00 AM
The Need4Speed
fooyukvoon's Avatar
Flip-flop,

Can you find out from them what motor was used in that setup?

Thanks.

Foo


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